Flexitallic CGI0166GC0600 Style CGI 6 in. 316 Stainless Steel and Graphite Gasket Specification
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SPIRAL WOUND
GASKETS
Driven by the industry's need for safe, effective sealing solutions,
Flexitallic invented the spiral wound gasket.
www.flexitallic.eu
FLEXITALLIC
The Flexitallic Group is the international market leader in the manufacture and supply of high quality, high value industrial static sealing products, delivering industrial gaskets on a global scale.
About us
As the developer of the spiral wound gasket in 1912, we have built on this legacy of innovation with revolutionary products including Thermiculite ® and
Sigma ® , The Flange Rescue Gasket winner of the NACE and Dupont Plunkett Awards, and most recently the Change TM Gasket, set to transform the global sealing industry.
We have a global network of Allied
Distributors across 30 countries. This ensures local demand is met quickly, providing a combination of the highest product quality and outstanding customer service.
Our extensive and varied product offering includes spiral wound gaskets,
RTJ gaskets, Flexpro TM Kammprofiles, sheet materials, dynamic and static packings, pipe support and custom rubber products. Drawing upon the group’s rich history and present day values of leadership, quality, service and technology, we are at the forefront of developing sealing solutions for industries around the world.
In addition to a wide range of products, we also deliver world-class technical support and Joint Integrity training.
Allied distributors
Based on sales and geographic reach, the Flexitallic Group has become
the
global supplier of industrial gaskets.
Innovative Product Range
We have a rich history of innovation, which has seen us lead the industry with many new products.
Over the years, our products have gained a reputation for quality, reliability and technology that is second to none.
Customised Engineering Solutions
Our Application Engineering, Production
Engineering and R&D teams work closely together to design, develop and manufacture bespoke sealing solutions.
We have been responsible for a number of truly revolutionary products, including
Thermiculite ® , Sigma ® and the Flange
Rescue Gasket, which ensure we are able to continually meet the ever more stringent requirements of our customers.
Flexitallic ® Safe
Over the last century, our aggressive
R&D efforts have helped customers become Flexitallic ® Safe. From the first
Spiral Wound Gasket in 1912 to the ever evolving applications for Thermiculite ® , our goal is to develop materials that push the parameters of heat, pressure and chemical resistance.
Our Commitment to Quality
We place great emphasis on maintaining international quality standards, and are approved to ISO 9001:2008,
ISO 14001:2004 and OHSAS 18001:2007,
API 6A and API 17D, to ensure we meet the highest possible standards for all our products and services.
We also invest heavily in test and quality assurance equipment to maintain our reputation for the highest quality products.
Our materials are subjected to a wide range of tests as specified by statutory regulations and customer requirements.
These approvals enable our customers to make informed choices as to the suitability of a product for each and every application.
Inside Industry
We pride ourselves on not simply supplying products, but by supporting customers with a detailed knowledge of their industry and applications, so that products and services are tailored to their specific needs.
This unique approach means that we focus on providing more than just a product, but also a complete solution that adds genuine value to our clients.
Global Distribution... Local Support
Our products are distributed through a global network of Allied Distributors.
These carefully selected distribution partners are strategically located within their territory to deliver the best possible service and products to our customers. This approach means our products and know-how are available to the global industries we service.
1.
CONTENTS
INTRODUCTION
SPIRAL WOUND GASKETS
GASKET IDENTIFICATION
GASKET MATERIALS
GASKET SELECTION
STYLE CG & CGI GASKETS
DIMENSIONAL DATA
TECHNICAL INFORMATION
SPECIAL APPLICATION GASKETS
THE ACADEMY OF JOINT INTEGRITY
PAGE
1
3
21
25
7
8
4
5
6
32
2. www.flexitallic.eu
SPIRAL WOUND
GASKETS
Driven by the industry’s need for safe, effective sealing solutions for increasingly demanding applications, Flexitallic invented the spiral wound gasket in 1912.
First and Foremost
The concept of spiral wound gasket construction was originated by Flexitallic in 1912, starting a new era in safe, effective sealing. The primary purpose for this development was the increasingly severe temperatures and pressures used by U.S. refinery operators in the first half of the 20th century.
The necessity for a gasket to have the ability to recover cannot be over emphasised. The effects of pressure and temperature fluctuations, the temperature differential across the flange face, together with bolt stress relaxation and creep, demand a gasket with adequate flexibility and recovery to maintain a seal even under these varying service conditions. The Flexitallic
Spiral Wound Gasket is the precision engineered solution to such problems, meeting the most exacting conditions of both temperature and pressure in flanged joints and similar assemblies and against virtually every known corrosive and toxic media.
Metal Strip
Filler Material
3.
GASKET
IDENTIFICATION
Gaskets are colour coded to help expedite the selection and identity of the gaskets you need.
The colour on the outside edge of the centering ring identifies both the winding and filler materials.
The metallic winding material is designated by a solid colour. The filler materials are designated by colour stripes at equal intervals on the outside edge of the centering ring. Flexitallic colour coding meets the industry standard for metal and filler materials listed in ASME B16.20.
Metallic Winding
Materials
The metallic winding material is designated by a solid colour identification around the outside edge of the centering ring.
304SS
Yellow
316LSS
Green
317L
Maroon
321SS
Turquoise
347SS
Blue
310SS
No colour
304LSS
No colour
309SS
No colour
430SS
No colour
Alloy 20
Black
Titanium ®
Purple
Inconel ® 600/625
Gold
Incoloy ® 800/825
White
Inconel ® X750
No Colour
Hastelloy ® C276
Beige
Monel
Orange
®
Hastelloy ® B2
Brown
Duplex
No colour
Nickel 200
Red
Non Metallic Fillers
The gasket filler materials are designated by a number of stripes placed at equal intervals around the outside edge of the centering ring.
Zirconium
No colour
PTFE
White Stripe
Carbon Steel
Silver
Flexicarb ®
Gray Stripe
Flexite Super ®
Pink Stripe
Ceramic
Light Green Stripe
Thermiculite ® 835
Light Blue Stripe
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GASKET
MATERIALS
METAL WINDING STRIP AS STANDARD
Stainless Steel 304
316L
OTHERS
Stainless Steel 304L
310
316Ti
317L
321
347
430
17-7PH
Alloy 20
Monel ®
Titanium ®
Nickel ® 200
Inconel ®
Hastelloy
Incoloy ®
®
600
625
X-750
B2
C276
800
825
Duplex
Zirconium ®
Tantalum ®
FILLER MATERIAL
Flexicarb ® flexible graphite
Thermiculite ® 835
Flexite Super ®
PTFE
Ceramic
Non-sintered PTFE
Thermiculite ® , FLEXITALLIC’S proprietary high-temperature, sealing material is comprised of chemically exfoliated and thermally exfoliated vermiculite.
This revolutionary patented product simulates the structure of exfoliated graphite but with one notable exception... gaskets made with Thermiculite ® maintain their integrity, even at extreme temperatures.
Thermiculite ® is thermally stable, ensuring against thermal oxidation, at temperatures in excess of 1000 o C
(Thermiculite ® 835).
GUIDE RING MATERIAL AS STANDARD
Carbon Steel
OTHERS
Stainless Steel
Inconel ®
304
304L
321
347
410
600
316
316L
316Ti
310
625
Monel ®
Titanium ®
Nickel ®
Incoloy ®
Alloy 20
Hastelloy ®
800
825
B2
C276
NOTES
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
Selected materials should be compatible with operating temperature and chemicals. If in doubt, contact Flexitallic Technical Department.
We recommend a max continuous operating temperature of 260 o C, above this decomposition starts to occur slowly, increasing rapidly above 400 o C (750 o C)
IDENTIFICATION REQUIREMENTS
5.
GASKET
SELECTION
Style CG – Is comprised of a sealing element and outer metal ring. The outer ring assists in locating the gasket on the mating flange faces and prevents over compression of the sealing element ensuring optimum sealing performance. Style CG gaskets are suitable for use on raised and flat faced flanged connections. Style CG gaskets are suitable for use in mild to moderate service conditions.
Style CGI – In addition to an outer metal ring the CGI style gasket is fitted with an inner metal ring, constraining the sealing element on both internal and external diameters. The inner ring functions as an additional compression stop and prevents inner buckling of the sealing element. It also creates a physical barrier between the sealing element and process stream shielding from heat and media while preventing erosion. Style CGI gaskets are suitable for use on raised and flat faced flanged connections and moderate to severe service conditions.
Style R – Is comprised of a sealing element, additional plies of metal are used at the start and termination of the winding process improving stability and sealing performance. Unlike other styles of spiral wound gasket compression of the sealing element is controlled by the use of the correct flange face configuration, style R gaskets are suitable for use on tongue and groove, male and female and flat to groove flanged connections.
Style RIR – Is comprised of a sealing element and inner metal ring.
The inner ring functions as both a compression stop and creates a physical barrier between the sealing element and media stream. The inner ring is also designed to reduce turbulent flow, minimising flange erosion and prevents the build up debris in the annular space between the pipe bore and internal diameter of the gasket. Style RIR gaskets are suitable for use on male and female
(spigot and recess) flanged connections.
Published as an indication of which Flexitallic spiral wound gasket best suits different pipe flange configurations and service conditions.
SELECTION GUIDE
Flange Face
Raised Face Flat Face Male and Female Tongue and Groove Flat Face to Recess
Recommended
Gasket Style
For general duties
Style CG Style CG Style R Style R Style R
Recommended
Gasket Style
For high pressure/ temperature duty, also for gaskets with
PTFE filler, corrosive or fluctuating pressure or temperature service conditions.
Style CGI Style CGI Style RIR Style RIR Style RIR
NOTES: Where style R gaskets are fitted it is essential that the flange is correctly dimensioned to provide a compression stop, as over compression can result in failure.
6. www.flexitallic.eu
STYLE CG &
CGI GASKETS
Style CG Style CGI
To suit standard raised face and flat face flanges.
All CG and CGI Gaskets for these standard flanges are 0.175 in (4.5mm) thick, fitted with 0.125 in (3.2mm) thick solid metal rings, unless otherwise stated.
Special gaskets
Gaskets of special design can be engineered and fabricated using the same basic fundamentals of Flexitallic Spiral Wound Gasket design and construction to cover a wide range of applications in installations for which there are no industry-wide standards. Special gaskets have been designed for valves, pumps, compressors, turbines, boilers, heat exchangers, etc. Consult with Flexitallic engineers as early in the design stage as possible.
Low Emission style Gaskets are available, which conform to major oil refinery requirements in accordance with CFET March 2013 revision.
Please speak to the Applications
Engineering Department for further information.
Note: When using PTFE filler material,
Spiral Wound Gaskets shall be fitted with an inner metal ring (i.e. style CGI).
Flexitallic style CG and CGI Spiral
Wound Gaskets can be manufactured in accordance with all relevant gasket standards to suit the following flange designations.
Please note that gaskets for nonstandard flanges are also readily available.
ASME B16.5
ASME B16.47 Series A (MSS SP 44)
ASME B16.47 Series B (API 605)
BS 10
BS 1560
BS 4504
BS EN 1092
BS EN 1759
DIN Flanges
JIS Flanges
WHEN ORDERING PLEASE SPECIFY
Gasket style
Nominal pipe size (NPS)
Pressure rating
Gasket standard
Winding materials
Outer ring material
Inner ring material
EXAMPLE
Flexitallic Style “CGI” Spiral Wound Gasket
4”
Class 900
ASME B16.20
316L/Flexicarb (FG)
Carbon Steel
316L
7.
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Dimensions to ASME B16.20 to suit ASME B16.5 Flanges
CG CGI
NOMINAL BORE mm
125
150
200
65
80
100
250
300
15
20
25
32
40
50
350
400
450
500
600
INNER RING ID SEALING ELEMENT ID (1) (2) SEALING ELEMENT OD CENTERING RING OD (3)
#150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500
(5) (5) (5) (4) (4) (4) (4) (4) (4)
14.2
14.2
20.6
20.6
26.9
26.9
38.1
38.1
44.5
44.5
55.6
55.6
-
-
-
-
-
-
14.2
20.6
26.9
38.1
44.5
55.6
-
-
-
-
-
-
14.2
14.2
19.1
19.1
20.6
20.6
25.4
25.4
26.9
26.9
31.8
31.8
33.3
33.3
47.8
47.8
41.4
41.4
54.1
54.1
52.3
52.3
69.9
69.9
-
-
-
-
-
-
19.1
25.4
31.8
47.8
54.1
69.9
-
-
-
-
-
-
19.1
19.1
31.8
31.8
31.8
31.8
31.8
31.8
31.8
47.8
54.1
25.4
25.4
39.6
39.6
39.6
39.6
39.6
39.6
39.6
57.2
66.8
31.8
31.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
66.8
73.2
39.6
39.6
60.5
60.5
60.5
60.5
60.5
60.5
60.5
76.2
82.6
47.8
47.8
69.9
69.9
69.9
69.9
69.9
69.9
69.9
85.9
95.3
58.7
58.7
85.9
85.9
85.9
85.9
85.9
85.9
85.9
104.9 111.3
-
-
-
-
-
-
54.1
66.8
73.2
82.6
-
-
-
-
63.5
69.9
79.5
88.9
69.9
76.2
85.9
104.9
95.3
98.6
117.6
111.3
143.0 146.1
66.5
66.5
81.0
81.0
-
-
66.5
81.0
-
78.7
63.5
78.7
63.5
78.7
82.6
82.6
101.6 101.6
-
-
82.6
101.6
-
95.3
69.9
92.2
69.9
92.2
98.6
98.6
98.6
98.6
98.6
98.6
98.6
124.0 130.3
120.7 120.7 120.7 120.7 120.7 120.7 120.7 136.7 149.4
-
-
130.3
165.1 168.4
149.4 168.4 174.8 196.9
106.4 106.4 102.6 102.6 102.6
97.8
97.8
127.0 127.0 120.7 120.7 120.7 117.6 117.6
149.4 149.4 149.4 149.4 149.4 149.4 149.4 174.8 181.1 177.8 193.8 206.5 209.6 235.0
131.8 131.8 128.3 128.3 128.3 124.5 124.5 155.7 155.7 147.6 147.6 147.6 143.0 143.0
177.8 177.8 177.8 177.8 177.8 177.8 177.8 196.9 215.9 212.9 241.3 247.7 254.0 279.4
157.2 157.2 154.9 154.9 154.9 147.3 147.3 182.6 182.6 174.8 174.8 174.8 171.5 171.5
209.6 209.6 209.6 209.6 209.6 209.6 209.6 222.3 251.0 247.7 266.7 289.1 282.7 317.5
215.9 215.9 205.7 205.7 196.9 196.9 196.9 233.4 233.4 225.6 225.6 222.3 215.9 215.9
263.7 263.7 263.7 263.7 257.3 257.3 257.3 279.4 308.1 304.8 320.8 358.9 352.6 387.4
268.2 268.2 255.3 255.3 246.1 246.1 246.1 287.3 287.3 274.6 274.6 276.4 266.7 270.0
317.5 317.5 317.5 317.5 311.2 311.2 311.2 339.9 362.0 358.9 400.1 435.1 435.1 476.3
317.5 317.5 307.3 307.3 292.1 292.1 292.1 339.9 339.9 327.2 327.2 323.9 323.9 317.5
374.7 374.7 374.7 374.7 368.3 368.3 368.3 409.7 422.4 419.1 457.2 498.6 520.7 549.4
349.3 349.3 342.9 342.9 320.8 320.8
-
400.1 400.1 389.9 389.9 374.7 368.3
-
449.3 449.3 438.2 438.2 425.5 425.5
-
500.1 500.1 489.0 489.0 482.6 476.3
-
603.3 603.3 590.6 590.6 590.6 577.9
-
371.6 371.6 362.0 362.0 355.6 362.0
-
422.4 422.4 412.8 412.8 412.8 406.4
-
474.7 474.7 469.9 469.9 463.6 463.6
-
525.5 525.5 520.7 520.7 520.7 514.4
-
628.7 628.7 628.7 628.7 628.7 616.0
-
406.4 406.4 406.4 406.4 400.1 400.1
-
463.6 463.6 463.6 463.6 457.2 457.2
-
527.1 527.1 527.1 527.1 520.7 520.7
-
577.9 577.9 577.9 577.9 571.5 571.5
-
685.8 685.8 685.8 685.8 679.5 679.5
-
450.9 485.9 482.6 492.3 520.7 577.9
514.4 539.8 536.7 565.2 574.8 641.4
549.4 596.9 593.9 612.9 638.3 704.9
606.6 654.1 647.7 682.8 698.5 755.7
717.6 774.7 768.4 790.7 838.2 901.7
-
-
-
-
-
GENERAL NOTES
All dimensions are in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The gasket thickness tolerance is +/- .13 mm measured across the metallic portion of the gasket, not including the filler, which may protrude slightly beyond the metal.
The inner-ring thickness shall be 2.97mm to 3.33mm.
For sizes NPS ½ through NPS 3, the insider diameter tolerance is +/- 0.8mm; for larger sizes the inside diameter tolerance is +/- 1.5mm.
NOTES
1. The gasket outside diameter tolerance for NPS ½ through to NPS 8 is +/-0.8mm; for NPS 10 through NPS 24 +1.5mm -0.8mm
2. The gasket inside diameter tolerance for NPS ½ through to NPS 8 is +/-0.4mm; for NPS 10 through NPS 24 +/- 0.8mm
3. The centering ring outside diameter tolerance is +/-0.8mm
4. There are no Class 400 flanges in NPS ½ through NPS 3 (use Class 600), Class 900 flanges in NPS ½ through NPS 2 ½ (use Class 1500), or Class 2500 flanges NPS 14 and larger
5. There are no NPS ½ through NPS 3 Class 400 flanges (use Class 600), NPS ½ through NPS 2 ½ Class 900 flanges (use Class 1500), or NPS 14 and larger Class 2500 flanges
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DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Dimensions to ASME B16.20 to suit ASME B16.5 Flanges
CG CGI
NOMINAL BORE
Inches
5
6
8
2 ½
3
4
10
12
½
¾
1
1 ¼
1 ½
2
14
16
18
20
24
INNER RING ID SEALING ELEMENT ID (1) (2) SEALING ELEMENT OD CENTERING RING OD (3)
#150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500 #150 #300 #400 #600 #900 #1500 #2500
(5) (5) (5) (4) (4) (4) (4) (4) (4)
0.56
0.56
0.81
0.81
1.06
1.06
1.50
1.50
1.75
1.75
2.19
2.19
-
-
-
-
-
-
0.56
0.81
1.06
1.50
1.75
2.19
-
-
-
-
-
-
0.56
0.56
0.75
0.75
0.81
0.81
1.00
1.00
1.06
1.06
1.25
1.25
1.31
1.31
1.88
1.88
1.63
1.63
2.13
2.13
2.06
2.06
2.75
2.75
-
-
-
-
-
-
0.75
1.00
1.25
1.88
2.13
2.75
-
-
-
-
-
-
0.75
0.75
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.88
2.13
1.00
1.00
1.56
1.56
1.56
1.56
1.56
1.56
1.56
2.25
2.63
1.25
1.25
1.88
1.88
1.88
1.88
1.88
1.88
1.88
2.63
2.88
1.56
1.56
2.38
2.38
2.38
2.38
2.38
2.38
2.38
3.00
3.25
1.88
1.88
2.75
2.75
2.75
2.75
2.75
2.75
2.75
3.38
3.75
2.31
2.31
3.38
3.38
3.38
3.38
3.38
3.38
3.38
4.13
4.38
-
-
-
-
-
-
2.13
0.00
2.50
2.75
2.63
0.00
2.75
3.00
2.88
0.00
3.13
3.38
3.25
0.00
3.50
4.13
3.75
0.00
3.88
4.63
4.38
0.00
5.63
5.75
2.62
2.62
3.19
3.19
-
-
2.62
3.19
-
3.10
2.50
3.10
2.50
3.10
3.25
4.00
3.25
4.00
-
-
3.25
4.00
-
3.75
2.75
3.63
2.75
3.63
3.88
4.75
3.88
4.75
3.88
4.75
3.88
4.75
3.88
4.75
3.88
4.75
3.88
4.75
4.88
5.38
5.13
5.88
-
-
5.13
5.88
0.00
6.63
6.50
6.88
6.63
7.75
4.19
4.19
4.04
4.04
4.04
3.85
3.85
5.00
5.00
4.75
4.75
4.75
4.63
4.63
5.88
5.88
5.88
5.88
5.88
5.88
5.88
6.88
7.13
7.00
7.63
8.13
8.25
9.25
5.19
5.19
5.05
5.05
5.05
4.90
4.90
6.13
6.13
5.81
5.81
5.81
5.63
5.63
7.00
7.00
7.00
7.00
7.00
7.00
7.00
7.75
8.50
8.38
9.50
9.75 10.00 11.00
6.19
6.19
6.10
6.10
6.10
5.80
5.80
7.19
7.19
6.88
6.88
6.88
6.75
6.75
8.25
8.25
8.25
8.25
8.25
8.25
8.25
8.75
9.88
9.75
10.50 11.38 11.13 12.50
8.50
8.50
8.10
8.10
7.75
7.75
7.75
9.19
9.19
8.88
8.88
8.75
8.50
8.50
10.38 10.38 10.38 10.38 10.13 10.13 10.13
11.00 12.13 12.00 12.63 14.13 13.88 15.25
10.56 10.56 10.05 10.05 9.69
9.69
9.69
11.31 11.31 10.81 10.81 10.88 10.50 10.63
12.50 12.50 12.50 12.50 12.25 12.25 12.25
13.38 14.25 14.13 15.75 17.13 17.13 18.75
12.50 12.50 12.10 12.10 11.50 11.50 11.50 13.38 13.38 12.88 12.88 12.75 12.75 12.50
14.75 14.75 14.75 14.75 14.50 14.50 14.50
16.13 16.63 16.50 18.00 19.63 20.50 21.63
13.75 13.75 13.50 13.50 12.63 12.63
-
15.75 15.75 15.35 15.35 14.75 14.50
-
17.69 17.69 17.25 17.25 16.75 16.75
-
19.69 19.69 19.25 19.25 19.00 18.75
-
23.75 23.75 23.25 23.25 23.25 22.75
-
14.63 14.63 14.25 14.25 14.00 14.25
-
16.63 16.63 16.25 16.25 16.25 16.00
-
18.69 18.69 18.50 18.50 18.25 18.25
-
20.69 20.69 20.50 20.50 20.50 20.25
-
24.75 24.75 24.75 24.75 24.75 24.25
-
16.00 16.00 16.00 16.00 15.75 15.75
-
18.25 18.25 18.25 18.25 18.00 18.00
-
20.75 20.75 20.75 20.75 20.50 20.50
-
22.75 22.75 22.75 22.75 22.50 22.50
-
27.00 27.00 27.00 27.00 26.75 26.75
-
17.75 19.13 19.00 19.38 20.50 22.75
20.25 21.25 21.13 22.25 22.63 25.25
21.63 23.50 23.38 24.13 25.13 27.75
23.88 25.75 25.50 26.88 27.50 29.75
28.25 30.50 30.25 31.13 33.00 35.50
-
-
-
-
-
GENERAL NOTES
All dimensions are in inches.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The gasket thickness tolerance is +/- .13 mm measured across the metallic portion of the gasket, not including the filler, which may protrude slightly beyond the metal.
The inner-ring thickness shall be 0.117 in to 0.131 in
For sizes NPS ½ through NPS 3, the insider diameter tolerance is +/- 0.03in; for larger sizes the inside diameter tolerance is +/- 0.06in.
NOTES
1. The gasket outside diameter tolerance for NPS ½ through to NPS 8 is +/-0.03in for NPS 10 through NPS 24 +0.06in – 0.03in
2. The gasket inside diameter tolerance for NPS ½ through to NPS 8 is +/-0.016in; for NPS 10 through NPS 24 +/- 0.03in.
3. The centering ring outside diameter tolerance is +/-0.03in
4. There are no Class 400 flanges in NPS ½ through NPS 3 (use Class 600), Class 900 flanges in NPS ½ through NPS 2 ½ (use Class 1500), or Class 2500 flanges NPS 14 and larger
5. There are no NPS ½ through NPS 3 Class 400 flanges (use Class 600), NPS ½ through NPS 2 ½ Class 900 flanges (use Class 1500), or NPS 14 and larger Class 2500 flanges
9.
DIMENSIONAL
DATA
STYLE CG & CGI GASKETS
Dimensions to suit ASME B16.5 & BS1560
Small Diameter Screwed or Slip-on Flanges
NOMINAL
PIPE
SIZE
INNER RING
INSIDE
DIAMETER
INCHES MM
¼
½
¾
1
1 ¼
1 ½
-
0.56
0.81
1.06
1.38
1.63
-
14.3
20.6
27.0
34.9
41.3
SEALING ELEMENT
INSIDE DIA.
INCHES MM
OUTSIDE DIA.
INCHES MM
0.56
0.94
1.19
1.44
1.88
2.13
14.3
23.8
30.2
36.5
47.6
54.0
0.88
1.25
1.56
1.88
2.38
2.75
22.2
31.8
39.7
47.6
60.3
69.9
CLASS 150
INCHES MM
1.75
1.88
2.25
2.63
3.00
3.38
44.5
47.6
57.2
66.7
76.2
85.7
CLASS 300
INCHES MM
1.75
2.13
2.63
2.88
3.25
3.75
44.5
54.0
66.7
73.0
82.6
95.3
GUIDE RING OUTSIDE DIAMETER
CLASS 400
INCHES MM
CLASS 600
INCHES MM
1.75
2.13
2.63
2.88
3.25
3.75
44.5
54.0
66.7
73.0
82.6
95.3
1.75
2.13
2.63
2.88
3.25
3.75
44.5
54.0
66.7
73.0
82.6
95.3
CLASS 900
INCHES MM
-
2.50
2.75
3.13
3.50
3.88
-
63.5
69.9
79.4
88.9
98.4
CLASS 1500
INCHES MM
-
2.50
2.75
3.13
3.50
3.88
-
63.5
69.9
79.4
88.9
98.4
GENERAL NOTES
All dimensions are in mm and inches.
NOTES
The above style CG & CGI Spiral Wound Gaskets are dimensioned to suit existing screwed or slip-on flanges for NPS 1⁄4 to 1-½ ASME B16.5 & BS 1560 flanges.
10. www.flexitallic.eu
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Style CG & CGI ASME B16.20 Gaskets to suit ASME B16.47 Flanges Series A
CG CGI
950
1000
1050
1100
1150
1200
1250
1300
650
700
750
800
850
900
1350
1400
1450
1500
NOMINAL BORE mm
INNER RING ID SEALING ELEMENT ID (2) (4) SEALING ELEMENT OD (1) (4) CENTERING RING OD (3) (4)
#150 #300 #400 #600 #900
(4)
#150 #300 #400 #600 #900 #150 #300 #400 #600 #900 #150 #300 #400 #600 #900
654.1
654.1
660.4
647.7
660.4
673.1
704.9
704.9
711.2
698.5
711.2
723.9
755.7
755.7
755.7
755.7
768.4
774.7
806.5
806.5
812.8
812.8
812.8
825.5
857.3
857.3
863.6
863.6
863.6
876.3
908.1
908.1
917.7
917.7
920.8
927.1
685.8
685.8
685.8
685.8
704.9
736.6
736.6
736.6
736.6
774.7
835.2
831.9
866.9
882.7
736.6
736.6
736.6
736.6
755.7
787.4
787.4
787.4
787.4
831.9
898.7
892.3
914.4
946.2
793.8
793.8
793.8
793.8
806.5
844.6
844.6
844.6
844.6
882.7
952.5
946.2
971.6
1009.7
850.9
850.9
850.9
850.9
860.6
901.7
901.7
901.7
901.7
939.8
1006.6
1003.3
1022.4
1073.2
901.7
901.7
901.7
901.7
911.4
952.5
952.5
952.5
952.5
990.6
1057.4
1054.1
1073.2
1136.7
955.8
955.8
955.8
958.9
968.5
1006.6
1006.6
1006.6
1009.7
1047.8
1117.6
1117.6
1130.3
1200.2
958.9
952.5
952.5
952.5
1009.7
977.9
977.9
971.6
990.6
1035.1
1019.3
1016.0
1022.4
1041.4
1085.9
1111.3
1054.1
1073.2
1104.9
1200.2
1009.7
1003.3
1000.3
1009.7
1060.5
1028.7
1022.4
1025.7
1047.8
1098.6
1070.1
1070.1
1076.5
1098.6
1149.4
1162.1
1114.6
1127.3
1155.7
1251.0
1060.5
1054.1
1051.1
1066.8
1111.3
1079.5
1073.2
1076.5
1104.9
1149.4
1124.0
1120.9
1127.3
1155.7
1200.2
1219.2
1165.4
1178.1
1219.2
1301.8
1111.3
1104.9
1104.9
1111.3
1155.7
1130.3
1130.3
1130.3
1162.1
1206.5
1178.1
1181.1
1181.1
1212.9
1257.3
1276.4
1219.2
1231.9
1270.0
1368.6
1162.1
1152.7
1168.4
1162.1
1219.2
1181.1
1178.1
1193.8
1212.9
1270.0
1228.9
1228.9
1244.6
1263.7
1320.8
1327.2
1273.3
1289.1
1327.2
1435.1
1212.9
1209.8
1206.5
1219.2
1270.0
1231.9
1235.2
1244.6
1270.0
1320.8
1279.7
1286.0
1295.4
1320.8
1371.6
1384.3
1324.1
1346.2
1390.7
1485.9
1263.7
1244.6
1257.3
1270.0
1314.5
1320.8
1308.1
1320.8
-
1282.7
1295.4
1295.4
1320.8
1333.5
1346.2
1346.2
1371.6
-
1333.5
1346.2
1346.2
1371.6
1384.3
1397.0
1397.0
1422.4
-
1435.1
1378.0
1403.4
1447.8
1492.3
1428.8
1454.2
1498.6
-
-
1358.9
1352.6
1352.6
1378.0
1409.7
1403.4
1403.4
1428.8
1460.5
1447.8
1454.2
1473.2
1511.3
1524.0
1517.7
1530.4
-
-
-
-
1384.3
1403.4
1403.4
1428.8
1435.1
1454.2
1454.2
1479.6
1485.9
1511.3
1505.0
1536.7
1536.7
1562.1
1568.5
1593.9
-
-
-
-
1435.1
1454.2
1454.2
1479.6
1485.9
1505.0
1505.0
1530.4
1536.7
1562.1
1555.8
1587.5
1587.5
1612.9
1619.3
1644.7
-
-
-
-
1549.4
1492.3
1517.7
1555.8
1606.6
1543.1
1568.5
1612.9
1663.7
1593.9
1619.3
1663.7
1714.5
1644.7
1682.8
1733.6
-
-
-
-
GENERAL NOTES
All dimensions are in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The gasket thickness tolerance is +/-0.13mm measured across the metallic portion of the gasket, not including the filler, which may protrude slighlty beyond the metal.
ASME B16.47 Series A flanges NPS 12 through NPS 24 have the same raised face dimensions as ASME B16.5 flanges.
The inner-ring thickness shall be 2.97 mm to 3.33 mm.
The inside diameter tolerance is +/- 3.0 mm.
These inner rings are suitable for use with pipe walls 9.53 mm or thicker.
NOTES
1. The gasket outside diameter tolerance for NPS 26 through NPS 60 is +/-1.5 mm
2. The gasket inside diameter tolerance for NPS 26 through NPS 34 is +/-0.8 mm; and the tolerance for NPS 36 through NPS 60 is ±1.5 mm.
3. The centering ring outside diameter tolerance is +/-0.8 mm.
4. There are no Class 900 flanges NPS 50 and larger.
11.
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Style CG & CGI ASME B16.20 Gaskets to suit ASME B16.47 Flanges Series A
CG CGI
44
46
48
38
40
42
50
52
26
28
30
32
34
36
54
56
58
60
NOMINAL BORE
Inches
INNER RING ID
#150 #300 #400 #600 #900
(4)
#150
25.75
25.75
26.00
25.50
26.00
26.50
27.75
27.75
28.00
27.50
28.00
28.50
29.75
29.75
29.75
29.75
30.25
30.50
31.75
31.75
32.00
32.00
32.00
32.50
33.75
33.75
34.00
34.00
34.00
34.50
35.75
35.75
36.13
36.13
36.25
36.50
37.75
37.50
37.50
37.50
39.75
38.50
39.75
39.50
39.38
39.75
41.75
40.50
41.75
41.50
41.38
42.00
43.75
42.50
43.75
43.50
43.50
43.75
45.50
44.50
45.75
45.38
46.00
45.75
48.00
46.50
47.75
47.63
47.50
48.00
50.00
48.50
49.75
49.00
49.50
50.00
51.75
52.00
51.50
52.00
-
50.50
52.50
53.50
53.25
53.25
54.25
55.50
55.25
55.25
56.25
57.50
57.00
57.25
58.00
59.50
60.00
59.75
60.25
-
-
-
-
54.50
56.50
58.50
60.50
SEALING ELEMENT ID (2) (4)
#300 #400
27.00
59.50
61.50
27.00
#600 #900 #150
SEALING ELEMENT OD (1) (4)
#300 #400 #600 #900 #150
CENTERING RING OD (3) (4)
#300 #400 #600 #900
29.00
29.00
29.00
29.00
29.75
31.00
31.00
31.00
31.00
32.75
35.38
35.13
36.00
37.25
31.25
31.25
31.25
31.25
31.75
33.25
33.25
33.25
33.25
34.75
37.50
37.25
38.25
39.75
33.50
33.50
33.50
33.50
33.88
35.50
35.50
35.50
35.50
37.00
39.63
39.50
40.25
42.25
35.50
35.50
35.50
35.50
35.88
37.50
37.50
37.50
37.50
39.00
41.63
41.50
42.25
44.75
37.63
37.63
37.63
37.75
38.13
39.63
39.63
39.63
39.75
41.25
44.00
44.00
44.50
47.25
38.50
38.25
39.00
40.75
40.13
40.00
40.25
41.00
42.75
43.75
41.50
42.25
43.50
47.25
40.25
40.38
41.25
43.25
42.13
42.13
42.38
43.25
45.25
45.75
43.88
44.38
45.50
49.25
42.25
42.38
43.50
45.25
44.25
44.13
44.38
45.50
47.25
48.00
45.88
46.38
48.00
51.25
44.50
44.50
45.75
47.50
46.38
46.50
46.50
47.75
49.50
50.25
48.00
48.50
50.00
53.88
46.38
47.00
47.75
50.00
48.38
48.38
49.00
49.75
52.00
52.25
50.13
50.75
52.25
56.50
48.63
49.00
50.00
52.00
50.38
50.63
51.00
52.00
54.00
54.50
52.13
53.00
54.75
58.50
51.00
51.00
52.00
53.00
53.00
54.00
55.25
55.25
56.25
57.25
57.25
58.25
59.25
61.75
27.00
60.50
62.75
27.00
-
-
-
-
-
-
27.75
29.00
29.00
29.00
52.50
53.00
53.00
54.00
54.50
55.00
55.00
56.00
56.50
57.25
57.25
58.25
58.50
59.25
59.25
60.25
60.50
61.50
61.25
62.50
62.50
63.50
63.75
64.75
29.00
-
-
-
-
-
-
30.50
32.88
32.75
34.13
56.50
54.25
55.25
57.00
58.75
56.25
57.25
59.00
61.00
58.75
59.75
61.25
63.25
60.75
61.75
63.50
65.50
62.75
63.75
65.50
67.50
64.75
66.25
68.25
34.75
-
-
-
-
-
-
GENERAL NOTES
All dimensions are in inches.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The gasket thickness tolerance is +/-0.005in measured across the metallic portion of the gasket, not including the filler, which may protrude slightly beyond the metal.
ASME B16.47 Series A flanges NPS 12 through NPS 24 have the same raised face dimensions as ASME B16.5 flanges.
NOTES
1. The gasket outside diameter tolerance for NPS 26 through NPS 60 is +/-0.06in
2. The gasket inside diameter tolerance for NPS 26 through NPS 34 is +/-0.03in and the tolerance for NPS 36 through NPS 60 is +/-0.05in
3. The centering ring outside diameter tolerance is +/-0.03in
4. There are no Class 900 flanges NPS 50 and larger.
12. www.flexitallic.eu
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Style CG & CGI ASME B16.20 Gaskets to suit ASME B16.47 Flanges Series B
CG CGI
950
1000
1050
1100
1150
1200
1250
1300
650
700
750
800
850
900
1350
1400
1450
1500
NOMINAL BORE mm
INNER RING ID SEALING ELEMENT ID (2) (4) SEALING ELEMENT OD (1) (4) CENTERING RING OD (3) (4)
#150 #300 #400 #600 #900 #150
(4)
#300 #400 #600 #900 #150 #300 #400 #600 #900 #150 #300 #400 #600 #900
654.1
654.1
654.1
644.7
666.8
673.1
704.9
704.9
701.8
685.8
717.6
723.9
755.7
755.7
752.6
752.6
781.1
774.7
806.5
806.5
800.1
793.8
838.2
825.5
857.3
857.3
850.9
850.9
895.4
876.3
908.1
908.1
898.7
901.7
920.8
927.1
673.1
666.8
663.7
692.2
698.5
711.2
698.5
714.5
749.3
725.4
771.7
746.3
765.3
838.2
723.9
714.5
704.9
743.0
749.3
762.0
749.3
755.7
800.1
776.2
825.5
800.1
819.2
901.7
774.7
765.3
778.0
806.5
800.1
812.8
806.5
828.8
857.3
827.0
886.0
857.3
879.6
958.9
825.5
812.8
831.9
863.6
850.9
863.6
860.6
882.7
914.4
881.1
939.8
911.4
933.5
1016.0
876.3
866.9
889.0
920.8
908.1
914.4
911.4
939.8
971.6
935.0
993.9
962.2
997.0
1073.2
927.1
917.7
939.8
946.2
958.9
965.2
965.2
990.6
997.0
987.6
1047.8
1022.4
1047.8
1124.0
958.9
971.6
952.5
952.5
1009.7
974.9
1009.7
971.6
990.6
1035.1
1009.7
1047.8
1022.4
1041.4
1085.9
1044.7
1098.6
1073.2
1104.9
1200.2
1009.7
1022.4
1000.3
1009.7
1060.5
1022.4
1060.5
1025.7
1047.8
1098.6
1063.8
1098.6
1076.5
1098.6
1149.4
1095.5
1149.4
1127.3
1155.7
1251.0
1060.5
1085.9
1051.1
1066.8
1111.3
1079.5
1111.3
1076.5
1104.9
1149.4
1114.6
1149.4
1127.3
1155.7
1200.2
1146.3
1200.2
1178.1
1219.2
1301.8
1111.3
1124.0
1104.9
1111.3
1155.7
1124.0
1162.1
1130.3
1162.1
1206.5
1165.4
1200.2
1181.1
1212.9
1257.3
1197.1
1251.0
1231.9
1270.0
1368.6
1162.1
1178.1
1168.4
1162.1
1219.2
1181.1
1216.2
1193.8
1212.9
1270.0
1224.0
1254.3
1244.6
1263.7
1320.8
1255.8
1317.8
1289.1
1327.2
1435.1
1212.9
1231.9
1206.5
1219.2
1270.0
1231.9
1263.7
1244.6
1270.0
1320.8
1270.0
1311.4
1295.4
1320.8
1371.6
1306.6
1368.6
1346.2
1390.7
1485.9
1263.7
1267.0
1257.3
1270.0
1314.5
1317.8
1308.1
1320.8
-
1282.7
1317.8
1295.4
1320.8
1333.5
1368.6
1346.2
1371.6
-
1325.6
1355.9
1346.2
1371.6
1376.4
1406.7
1397.0
1422.4
-
1357.4
1419.4
1403.4
1447.8
1408.2
1470.2
1454.2
1498.6
-
-
1365.3
1365.3
1352.6
1378.0
1422.4
1428.8
1403.4
1428.8
1478.0
1484.4
1454.2
1473.2
1535.2
1557.3
1517.7
1530.4
-
-
-
-
1384.3
1403.4
1403.4
1428.8
1444.8
1479.6
1454.2
1479.6
1500.1
1535.2
1505.0
1536.7
1557.3
1589.0
1568.5
1593.9
-
-
-
-
1422.4
1454.2
1454.2
1479.6
1478.0
1524.0
1505.0
1530.4
1528.8
1573.3
1555.8
1587.5
1586.0
1630.4
1619.3
1644.7
-
-
-
-
1463.8
1530.4
1517.7
1555.8
1514.6
1593.9
1568.5
1612.9
1579.6
1655.8
1619.3
1663.7
1630.4
1706.6
1682.8
1733.6
-
-
-
-
GENERAL NOTES
All dimensions are in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The inner-ring thickness shall be 2.97 mm to 3.33 mm.
The inside diameter tolerance is +/-3.0 mm.
These Inner rings are suitable for use with pipe walls 9.53 mm or thicker.
The gasket thickness tolerance is +/-0.13mm measured across the metallic portion of the gasket, not including the filler, which may protrude slightly beyond the metal.
NOTES
1. The gasket outside diameter tolerance for NPS 26 through NPS 60 is +/-1.5 mm
2. The gasket inside diameter tolerance for NPS 26 through NPS 34 is +/-0.8 mm, and the tolerance for NPS 36 through NPS 60 is +/-1.2 mm.
3. The centering ring outside diameter tolerance is +/-0.8 mm.
4. There are no Class 900 flanges NPS 50 and larger.
13.
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Style CG & CGI ASME B16.20 Gaskets to suit ASME B16.47 Flanges Series B
CG CGI
44
46
48
38
40
42
50
52
26
28
30
32
34
36
54
56
58
60
NOMINAL BORE
Inches
INNER RING ID
#150 #300 #400 #600 #900 #150
(4)
25.75
25.75
25.75
25.38
26.25
26.50
27.75
27.75
27.63
27.00
28.25
28.50
29.75
29.75
29.63
29.63
30.75
30.50
31.75
31.75
31.50
31.25
33.00
32.50
33.75
33.75
33.50
33.50
35.25
34.50
35.75
35.75
35.38
35.50
36.25
36.50
37.75
38.25
37.50
37.50
39.75
38.37
39.75
40.25
39.38
39.75
41.75
40.25
41.75
42.75
41.38
42.00
43.75
42.50
43.75
44.25
43.50
43.75
45.50
44.25
45.75
46.38
46.00
45.75
48.00
46.50
47.75
48.50
47.50
48.00
50.00
48.50
49.75
49.88
49.50
50.00
51.75
51.88
51.50
52.00
-
50.50
52.50
53.75
53.75
53.25
54.25
56.00
56.25
55.25
56.25
58.19
58.44
57.25
58.00
60.44
61.31
59.75
60.25
-
-
-
-
54.50
56.88
59.07
61.31
SEALING ELEMENT ID (2) (4)
#300 #400
26.50
60.44
62.56
26.25
#600 #900 #150
SEALING ELEMENT OD (1) (4)
#300 #400 #600 #900 #150
CENTERING RING OD (3) (4)
#300 #400 #600 #900
28.50
28.13
27.75
29.25
29.50
30.00
29.50
29.75
31.50
30.56
32.50
31.50
32.25
35.50
30.50
30.13
30.63
31.75
31.50
32.00
31.75
32.63
33.75
32.56
34.88
33.75
34.63
37.75
32.50
32.00
32.75
34.00
33.50
34.00
33.88
34.75
36.00
34.69
37.00
35.88
36.75
40.00
34.50
34.13
35.00
36.25
35.75
36.00
35.88
37.00
38.25
36.81
39.13
37.88
39.25
42.25
36.50
36.13
37.00
37.25
37.75
38.00
38.00
39.00
39.25
38.88
41.25
40.25
41.25
44.25
39.75
38.25
39.00
40.75
39.75
41.25
40.25
41.00
42.75
41.13
43.25
42.25
43.50
47.25
41.75
40.38
41.25
43.25
41.88
43.25
42.38
43.25
45.25
43.13
45.25
44.38
45.50
49.25
43.75
42.38
43.50
45.25
43.88
45.25
44.38
45.50
47.25
45.13
47.25
46.38
48.00
51.25
45.75
44.50
45.75
47.50
45.88
47.25
46.50
47.75
49.50
47.13
49.25
48.50
50.00
53.88
47.88
47.00
47.75
50.00
48.19
49.38
49.00
49.75
52.00
49.44
51.88
50.75
52.25
56.50
49.75
49.00
50.00
52.00
50.00
51.63
51.00
52.00
54.00
51.44
53.88
53.00
54.75
58.50
51.88
51.00
52.00
53.88
53.00
54.00
55.25
55.25
56.25
58.25
57.25
58.25
59.25
61.75
26.13
60.50
62.75
27.25
-
-
-
-
-
-
27.50
28.00
27.50
28.13
52.19
53.38
53.00
54.00
54.19
55.38
55.00
56.00
56.00
57.25
57.25
58.25
58.18
60.00
59.25
60.25
60.19
61.94
61.25
62.50
62.44
64.19
63.75
64.75
29.50
-
-
-
-
-
-
28.56
30.38
29.38
30.13
53.44
55.88
55.25
57.00
55.44
57.88
57.25
59.00
57.63
60.25
59.75
61.25
59.63
62.75
61.75
63.50
62.19
65.19
63.75
65.50
64.19
67.19
66.25
68.25
33.00
-
-
-
-
-
-
GENERAL NOTES
All dimensions are in inches.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The gasket thickness tolerance is +/-0.005in measured across the metallic portion of the gasket, not including the filler, which may protrude slightly beyond the metal.
NOTES
1. The gasket outside diameter tolerance for NPS 26 through NPS 60 is +/-0.06in
2. The gasket inside diameter tolerance for NPS 26 through NPS 34 is +/-0.03in, and the tolerance for NPS 36 through NPS 60 is +/-0.05in
3. The centering ring outside diameter tolerance is +/-0.03in
4. There are no Class 900 flanges NPS 50 and larger
14. www.flexitallic.eu
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Style CG & CGI Gaskets to BS EN 1514-2 to suit BS EN 1092-1 Flanges
CG CGI
NOMINAL
DIAMETER
INNER
DIAMETER
OF THE
INNER
RING
MM
WIDTH
OF THE
INNER
RING
INNER
DIAMETER
OF THE
SEALING
ELEMENT
WIDTH
OF THE
SEALING
ELEMENT
INNER
DIAMETER
OF THE
GUIDE
RING
WIDTH
OF THE
SEALING
ELEMENT
INNER
DIAMETER
OF THE
GUIDE
RING
PN10-PN40 PN63-PN160
50
65
80
100
125
150
200
250
25
32
40
10
15
20
300
350
400
500
600
700
800
900
1000
61
77
90
115
140
167
216
267
35
43
50
18
23
28
318
360
410
510
610
710
810
910
1010
6
6
6
4.5
4.5
4.5
6
6
3
3
3
3
3
3
6
10
6
6
10
10
6
8
6
70
86
99
127
152
179
228
279
41
49
56
24
29
34
330
376
422
522
622
722
830
930
1030
10
10
12
8
8
8
8
10
6
6
6
5
5
6
14
14
17
17
12
12
14
17
22
86
102
115
143
172
199
248
303
53
61
68
34
39
46
354
400
450
550
650
756
864
964
1074
12
12
14
8
10
10
10
12
6
-
6
5
5
-
17
17
20
20
14
14
17
20
25
86
106
119
147
176
203
252
307
53
-
68
34
39
-
358
404
456
556
656
762
870
970
1080
PN10
107
127
142
162
192
218
273
327
71
82
92
46
51
61
377
437
488
593
695
810
917
1017
1124
OUTSIDE DIAMETER OF THE GUIDE RING TO EACH PRESSURE CLASS
PN16 PN25 DN40
107
127
142
168
194
224
290
352
71
82
92
46
51
61
417
474
546
628
747
852
974
1084
1194
107
127
142
168
194
224
284
340
71
82
92
46
51
61
400
457
514
624
731
833
942
1042
1154
107
127
142
162
192
218
273
329
71
82
92
46
51
61
384
444
495
617
734
804
911
1011
1128
PN63
113
137
148
174
210
247
309
364
82
-
103
56
61
-
424
486
543
657
764
879
988
1108
-
PN100
119
143
154
180
217
257
324
391
82
-
103
56
61
-
458
512
572
704
813
950
-
-
-
PN160
119
143
154
180
217
257
324
388
-
56
61
-
82
103
-
-
-
-
-
-
-
-
458
GENERAL NOTES
Dimensions in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
The use of an inner ring is recommended for gaskets for use with PN100 Flanges an above.
Gasket dimensions are available to suit PN250 and above, consult the technical department.
Ref: EN1514-2 - standard
15.
DIMENSIONAL
DATA
STYLE R
Flexitallic dimensions for use with Male & Female and Tongue & Groove
ASME 16.5 & BS EN1092
Standard Style R gaskets embody all the exclusive features of Flexitallic design for keeping compression values in balance with bolting and providing adequate resilience to compensate for variable stresses encountered in service. Standard Style R gaskets are manufactured to a nominal thickness of .125"
(3.2mm). Optimum compression is in the range of .090" to .100" (2.3mm to 2.5mm) thick.
There are three types of Style R gaskets:
(a) Style R-1 indicates gaskets for use with large male and female flanges.*
(b) Style R-3 indicates gaskets for use with large tongue and groove flanges.
(c) Style R-4 indicates gaskets for use with small tongue and groove flanges.
*As a general rule, the use of Flexitallic Spiral
Wound Gaskets with small male and female flange facings is not recommended.
Dimensional limitations established by the proportions of the small tongue and groove facings limit the possibility of increasing gasket dimensions to improve the load carrying capacity in the higher pressure series. For this reason, it is suggested that large tongue and groove facings be selected for new construction when class 900,
1500 and 2500 flanges are to be used.
Style R-4 gaskets may be compressed an additional amount when exposed to the higher bolt loads, but not to the degree that the gasket will be crushed due to the radial support provided by the confining groove.
Special Style R gaskets are adaptable to non-standard flanges and can be designed and manufactured according to specifications for high and low pressure applications and for severe corrosive conditions.
When ordering special Style R gaskets for non-standard flanges and for special applications,contact the Applications
Engineering Team.
NOMINAL
PIPE
SIZE
STYLE R1 FOR LARGE MALE & FEMALE
SEALING ELEMENT CLASS 150-1500
INCHES
ID
MM INCHES
OD
MM
SEALING ELEMENT CLASS 2500
INCHES
ID
MM INCHES
OD
MM
STYLE R3 FOR LARGE TONGUE & GROOVE STYLE R4 FOR SMALL TONGUE & GROOVE
SEALING ELEMENT CLASS 150-2500
INCHES
ID
MM INCHES
OD
MM
SEALING ELEMENT CLASS 150-2500
INCHES
ID
MM INCHES
OD
MM
14
16
18
20
24
8
10
5
6
12
3 ½
4
4 ½
¼
½
¾
1
0.50
1.00
1.31
1.50
12.7
25.4
33.3
38.1
1.00
1.38
1.69
2.00
25.4
34.9
42.9
50.8
1 ¼ 1.88
1 ½ 2.12
2 2.88
2 ½ 3.38
3
47.6
54.0
73.0
85.7
2.50
2.88
3.62
4.12
63.5
73.0
92.1
104.8
1.63
1.88
2.38
3.00
4.25
108.0
5.00
127.0
3.75
-
0.19
1.06
1.25
4.75
5.19
5.69
120.6
131.8
144.5
5.50
6.19
6.75
139.7
157.2
171.5
-
4.75
-
-
20.6
27.0
31.8
41.3
47.6
60.3
76.2
95.3
-
120.7
-
-
1.38
1.69
2.00
2.50
2.88
3.62
-
34.9
42.9
50.8
63.5
73.0
92.1
0.50
1.00
1.31
1.50
1.88
2.12
2.88
4.12
104.8
3.38
12.7
25.4
33.3
38.1
47.6
54.0
73.0
85.7
1.00
1.38
1.69
2.00
2.50
2.88
3.62
4.12
25.4
34.9
42.9
50.8
63.5
73.0
92.1
104.8
-
1.00
1.31
1.50
1.88
2.12
2.88
3.38
-
25.4
33.3
38.1
47.6
54.0
73.0
85.7
-
1.38
1.69
1.88
2.25
2.50
3.25
3.75
-
35.1
42.9
47.8
57.2
63.5
82.6
95.2
5.00
127.0
4.25
108.0
5.00
127.0
4.25
108.0
4.62
117.5
6.19
-
-
157.2
-
4.75
120.6
5.50
139.7
4.75
120.6
5.12
130.2
5.19
131.8
6.19
157.2
5.69
144.5
6.75
171.5
5.19
-
131.8
-
5.69
-
144.5
-
6.31
160.3
7.31
185.7
5.75
146.1
7.31
185.7
6.31
160.3
7.31
185.7
6.31
160.3
6.81
173.0
7.50
190.5
8.50
215.9
6.75
171.5
8.50
215.9
7.50
190.5
8.50
215.9
7.50
190.5
8.00
203.2
9.38
238.1
10.62
269.9
8.75
222.3
10.62
269.9
9.38
238.1
10.62
269.9
9.38
238.1
10.00
254.0
11.25
285.8
12.75
323.9
10.75
273.1
12.75
323.9
11.25
285.8
12.75
323.9
11.25
285.8
12.00
304.8
13.50
342.9
15.00
381.0
13.00
330.2
15.00
381.0
13.50
342.9
15.00
381.0
13.50
342.9
14.25
362.0
14.75
374.6
16.25
412.8
16.75
425.4
18.50
469.9
19.25
489.0
21.00
533.4
21.00
533.4
23.00
584.2
25.25
641.4
27.25
692.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
14.75
374.6
16.25
412.8
14.75
374.6
15.50
393.7
16.75
425.4
18.50
469.9
16.75
425.4
17.62
447.5
19.25
489.0
21.00
533.4
19.25
489.0
20.12
511.2
21.00
533.4
23.00
584.2
21.00
533.4
22.00
558.8
25.25
641.4
27.25
692.2
25.25
641.4
26.25
666.8
GENERAL NOTES
All dimensions are in mm amd inches.
*It is essential that Style R gaskets are fitted with a compression stop. Without a correctly dimensioned stop the gasket can easily be over-compressed resulting in failure. To provide a compression stop the depth of the tongue, groove or recess should be controlled to provide optimum compressed gasket thickness with metal to metal contact on the flange faces .
16. www.flexitallic.eu
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Flexitallic dimensions for use with Large Male & Female
ASME B16.5
Standard RIR gaskets are manufactured to
0.125" (3.2mm) thickness. The gasket features a solid metal inner ring nominally 0.090"
(2.3mm) thick, as an integrated part of its design. The inner ring provides a positive stop preventing the gasket from over compression and possible damage.
Special styles are available in other thickness.
2
2 ½
3
3 ½
4
4 ½
5
6
1
1 ¼
1 ½
¼
½
¾
8
10
12
14
16
18
20
24
NOMINAL
PIPE
SIZE
INNER RING
ID
INCHES MM
2.06
2.50
3.06
3.56
4.06
4.56
5.06
6.06
-
0.56
0.81
1.06
1.38
1.63
8.00
10.00
11.94
13.50
15.50
17.50
19.50
23.50
52.4
63.5
77.8
90.5
103.2
115.9
128.6
154.0
-
14.2
20.6
26.9
34.9
41.3
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
STYLE R1 FOR LARGE MALE AND FEMALE
SEALING ELEMENT CLASS 150 - 1500
ID OD
INCHES MM INCHES MM INCHES
SEALING ELEMENT CLASS 2500
ID OD
MM INCHES MM
2.88
3.38
4.25
4.75
5.19
5.69
6.31
7.50
0.50
1.00
1.31
1.50
1.88
2.12
9.38
11.25
13.50
14.75
16.75
19.25
21.00
25.25
73.0
85.7
108.0
120.6
131.8
144.5
160.3
190.5
12.7
25.4
33.3
38.1
47.6
54.0
238.1
285.8
342.9
374.6
425.4
489.0
533.4
641.4
3.62
4.12
5.00
5.50
6.19
6.75
7.31
8.50
1.00
1.38
1.69
2.00
2.50
2.88
10.62
12.75
15.00
16.25
18.50
21.00
23.00
27.25
92.1
104.8
127.0
139.7
157.2
171.5
185.7
215.9
25.4
34.9
42.9
50.8
63.5
73.0
269.9
323.9
381.0
412.8
469.9
533.4
584.2
692.2
2.38
3.00
3.75
-
4.75
-
5.75
6.75
-
0.81
1.06
1.25
1.63
1.88
-
-
-
8.75
10.75
13.00
-
-
60.3
76.2
95.3
-
120.7
-
146.1
171.5
-
20.6
27.0
31.8
41.3
47.6
-
-
-
222.3
273.1
330.2
-
-
3.62
4.13
5.00
-
6.19
-
7.31
8.50
-
1.38
1.69
2.00
2.50
2.88
-
-
-
10.62
12.75
15.00
-
-
92.1
104.8
127.0
-
157.2
-
185.7
215.9
-
34.9
42.9
50.8
63.5
73.0
269.9
323.9
381.0
-
-
-
-
-
GENERAL NOTES
All dimensions in mm and inches.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
17.
DIMENSIONAL
DATA
SPIRAL WOUND GASKETS
Dimensions to JIS B2404 for JIS B2220 & JIS B2238 - 2240 Flanges
CG CGI
NOMINAL BORE mm 10K
350
400
450
225
250
300
500
550
600
100
125
150
65
80
90
175
200
10
15
20
25
32
40
50
INNER RING ID (d1)
16 to
20K
30K 40K 63K 10K
18.0
22.0
28.0
34.0
43.0
49.0
61.0
18.0
22.0
28.0
34.0
43.0
49.0
61.0
18.0
22.0
28.0
34.0
43.0
49.0
61.0
15.0
18.0
23.0
29.0
38.0
43.0
55.0
15.0
18.0
23.0
29.0
38.0
43.0
55.0
77.0
89.0
77.0
89.0
68.0
80.0
102.0
102.0
92.0
68.0
80.0
92.0
68.0
80.0
87.0
98.0
92.0
110.0
115.0
115.0
104.0
104.0
104.0
123.0
140.0
140.0
128.0
128.0
128.0
148.0
166.0
166.0
153.0
153.0
153.0
174.0
202.0
202.0
202.0
201.0
217.0
217.0
251.0
251.0
251.0
227.0
24.0
28.0
34.0
40.0
51.0
57.0
69.0
300.0
300.0
300.0
252.0
268.0
268.0
336.0
336.0
336.0
278.0
319.0
319.0
383.0
383.0
383.0
329.0
356.0
356.0
407.0
407.0
458.0
458.0
-
-
-
-
-
-
-
-
-
366.0
417.0
468.0
508.0
508.0
559.0
559.0
610.0
610.0
-
-
-
-
-
-
-
-
-
518.0
569.0
620.0
SEALING ELEMENT ID (d2)
16 to
20K
30K 40K 63K 10K
SEALING ELEMENT OD (d3)
16 to
20K
30K 40K 63K 10K
CENTERING RING OD (d4)
16 to
20K
30K 40K 63K
24.0
28.0
34.0
40.0
51.0
57.0
69.0
24.0
28.0
34.0
40.0
51.0
57.0
69.0
21.0
24.0
29.0
35.0
44.0
51.0
63.0
21.0
24.0
29.0
35.0
44.0
51.0
63.0
37.0
41.0
47.0
53.0
67.0
73.0
89.0
37.0
41.0
47.0
53.0
67.0
73.0
89.0
37.0
41.0
47.0
53.0
67.0
73.0
89.0
34.0
37.0
42.0
48.0
60.0
67.0
79.0
34.0
37.0
42.0
48.0
60.0
67.0
79.0
52.0
57.0
62.0
74.0
84.0
52.0
57.0
62.0
74.0
84.0
59.0
64.0
69.0
79.0
89.0
59.0
64.0
69.0
79.0
89.0
64.0
69.0
75.0
80.0
90.0
89.0
89.0
100.0
100.0
107.0
104.0
104.0
114.0
114.0
125.0
87.0
99.0
78.0
90.0
78.0
90.0
78.0
90.0
107.0
118.0
107.0
119.0
98.0
110.0
98.0
110.0
98.0
110.0
124.0
134.0
124.0
140.0
140.0
150.0
140.0
150.0
152.0
162.0
114.0
102.0
102.0
102.0
130.0
139.0
127.0
127.0
127.0
144.0
150.0
162.0
162.0
179.0
127.0
116.0
116.0
116.0
143.0
152.0
141.0
141.0
141.0
159.0
165.0
172.0
182.0
194.0
152.0
140.0
140.0
140.0
173.0
177.0
165.0
165.0
165.0
190.0
202.0
207.0
224.0
235.0
182.0
165.0
165.0
165.0
199.0
214.0
197.0
197.0
197.0
220.0
237.0
249.0
265.0
275.0
218.0
218.0
218.0
226.0
250.0
250.0
250.0
245.0
294.0
315.0
328.0
233.0
271.0
271.0
271.0
252.0
265.0
311.0
311.0
311.0
270.0
282.0
360.0
378.0
394.0
320.0
320.0
320.0
277.0
360.0
360.0
360.0
290.0
418.0
434.0
446.0
288.0
356.0
356.0
356.0
310.0
328.0
396.0
396.0
396.0
332.0
354.0
463.0
479.0
488.0
339.0
403.0
403.0
403.0
361.0
379.0
453.0
453.0
453.0
377.0
404.0
524.0
531.0
545.0
376.0
432.0
483.0
-
-
-
-
-
-
-
-
-
406.0
457.0
518.0
416.0
482.0
533.0
-
-
-
-
-
-
-
-
-
422.0
484.0
539.0
450.0
508.0
573.0
-
-
-
-
-
-
-
-
-
533.0
584.0
635.0
-
-
-
-
-
-
-
-
-
568.0
583.0
619.0
634.0
670.0
685.0
-
-
-
-
-
-
-
-
-
594.0
628.0
650.0
684.0
700.0
734.0
-
-
-
-
-
-
-
-
-
GENERAL NOTES
All dimensions are in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
NOTES
With these dimensions the inner ring will not protrude into the bore of the pipe to be sealed.
18. www.flexitallic.eu
DIMENSIONAL
DATA
STYLE CG-RJ & CGI-RJ GASKETS
For use with ASME B16.5 and API 6A Ring Joint Flanges
CG-RJ and CGI-RJ Spiral Wound Gaskets are designed for use, as a replacement maintenance item, of standard oval and octagonal ring joint gaskets. These gaskets are available for NPS ½ to 24 and pressure classes
150 to 1500. Gasket thickness is 0.175" (4.5mm) and the outer ring thickness is 0.125" (3.2mm).
Style CGI-RJ gaskets are fitted with an inner ring 0.125 (3.2mm) thick. Flexitallic recommends
CGI-RJ gaskets for pressure classes 900 and above, and where operating temperatures are above 572 F (300 C). Consult our technical department for CGI-RJ gasket dimensions.
Note: Clearance dimensions between flange faces should be checked on close coupling pipework prior to installation of CG-RJ and CGI-RJ gaskets to ensure that optimum compression can be achieved without over stressing bolts and or flanges.
It is the user’s responsibility to ensure that there is sufficient clearance between the flange bore and ring groove for proper seating of the gasket.
Dimensions are listed below for CG-RJ Spiral
Wound Gaskets. Flexitallic’s technical department should be consulted for CGI-RJ and API gasket sizes.
½
¾
14
16
18
20
24
10
12
6
8
2 ½
3
4
5
1
1 ¼
1 ½
2
NOMINAL
PIPE
SIZE
150
ID
GASKET
OD
RING
OD
300
ID
GASKET
OD
RING
OD
400
ID
GASKET
OD
PRESSURE CLASS
RING
OD
600
ID
GASKET
OD
RING
OD
900
ID
GASKET
OD
RING
OD
1500
ID
GASKET
OD
RING
OD
-
-
-
-
-
0.69
0.88
1.06
1.31
2.13
2.63
0.69
0.88
1.06
1.31
2.13
2.63
0.69
0.88
1.06
1.31
2.13
2.63
0.69
0.88
1.06
1.38
2.50
2.75
0.69
0.88
1.06
1.38
2.50
2.75
2.75
3.31
4.31
5.31
1.13
1.44
1.69
2.13
2.31
3.94
5.19
6.19
1.63
1.88
2.19
2.88
4.88
5.38
6.88
7.75
2.63
3.00
3.38
4.13
2.75
3.31
4.31
5.31
1.13
1.44
1.69
2.13
3.31
3.94
5.19
6.44
1.63
2.00
2.38
2.75
5.13
5.88
7.13
8.50
2.88
3.25
3.75
4.38
2.75
3.31
4.31
5.31
1.13
1.44
1.69
2.13
3.31
3.94
5.19
6.44
1.63
2.00
2.38
2.75
5.13
5.88
7.00
8.38
2.88
3.25
3.75
4.38
2.75
3.31
4.31
5.31
1.13
1.44
1.69
2.13
3.31
3.94
5.19
6.44
1.63
2.00
2.38
2.75
5.13
5.88
7.63
9.50
2.88
3.25
3.75
4.38
2.56
3.19
4.25
5.31
1.13
1.44
1.69
2.25
3.63
4.19
5.19
6.44
1.63
2.00
2.38
3.25
6.50
6.63
8.13
9.75
3.13
3.50
3.88
5.63
2.56
3.19
4.25
5.06
1.13
1.44
1.69
2.25
1.63
2.00
2.38
3.25
3.63
4.69
6.50
6.88
5.69
8.25
6.94
10.00
3.13
3.50
3.88
5.63
6.31
8.25
7.19
8.75
9.19
11.00
6.44
8.25
7.63
9.88
6.44
9.94
12.13
8.25
7.63
9.75
6.44
9.94
12.00
8.25
7.63
10.50
6.31
9.94
12.63
8.25
7.63
11.38
6.31
9.94
14.13
8.13
7.56
11.13
9.75
13.88
10.31
11.44
13.38
10.31
12.00
14.25
10.31
12.00
14.13
10.31
12.00
15.75
10.31
12.00
17.13
10.25
11.88
17.13
12.19
13.56
16.13
12.88
14.25
16.63
12.88
14.25
16.50
12.88
14.25
18.00
12.88
14.25
19.63
11.94
13.81
20.50
13.44
14.94
17.75
14.25
15.75
19.13
14.25
15.75
19.00
14.25
15.75
19.38
13.81
15.56
20.50
13.44
15.19
22.75
15.50
16.94
20.25
16.25
17.75
21.25
16.25
17.75
21.13
16.25
17.75
22.25
15.56
17.56
22.63
15.00
17.00
25.25
17.25
19.00
21.63
18.25
20.25
23.50
18.25
20.25
23.38
18.25
20.25
24.13
17.69
19.94
25.13
17.25
19.50
27.75
19.75
21.13
23.88
20.25
22.19
25.75
20.25
22.19
25.50
20.25
22.19
26.88
19.69
21.94
27.50
19.19
21.44
29.75
23.50
25.25
28.25
24.25
26.31
30.50
24.25
26.31
30.25
24.25
26.31
31.13
23.19
25.94
33.00
23.25
25.50
35.50
GENERAL NOTES
All dimensions in inches.
19.
DIMENSIONAL
DATA
MAXIMUM BORE OF ASME B16.5 FLANGES
For use with CG & CGI Spiral Wound Gaskets
This table shows the maximum bore of flanges for which the Spiral Wound gasket dimensions shown are recommended considering the tolerances involved, possible eccentric installation, and the possibility that the gasket may extend into the assembled flange bore.
FLANGE
SIZE
(NPS) 75
16
18
12
14
20
24
8
10
4
6
1-1/2
2
2-1/2
3
1/2
3/4
1
1-1/4
No flanges
150
WN flange only b
SO flange
WN flange
SO flange c any bore
SO flange b c
WN flange, b
300
WN flange, any bore
PRESSURE CLASS
400
No flanges
Use Class
600
600
WN flange only
SO flang c
WN flange b
No flanges
Use Class1500
SO flang c
WN flange, any bore
SO flange c
WN flange, any bore
WN flange only b
WN flange with SW bore
(includes nozzle d but excludes SO flange)
WN flange with
Schedule 10S bore described in ASME B36.19M
(includes nozzle d but excludes
SO flange)
WN flange with
Schedule 10S bore described in ASME B36.19M
(excludes nozzle and SO flange) e d b
900
WN Flange with
Schedule 80 bore
(excludes nozzle and SO flange)
1500* 2500*
No flanges
NOTES
SO = slip on and threaded; WN = welding neck; SW = standard wall.
a Inner rings are required for Class 900 gaskets, NPS 24; Class 1500 gaskets, NPS 12 through NPS 24; and Class 2500 gaskets; NPS 4 through NPS 12. These inner rings may extend into the pipe bore a maximum of 0.06 inch (1.5 millimeters) under the worst combination of maximum bore, eccentric installation, and additive tolerances.
b In these sizes the gasket is suitable for welding-neck flange with a standard-wall bore, if the gasket and the flanges are assembled concentrically. This also applies to nozzle.
It is the user's responsibility to determine if the gasket is satisfactory for a flange of any larger bore.
c Gaskets in these sizes are suitable for slip-on flanges only if the gaskets and flanges are assembled concentrically.
d A nozzle is a long welding neck; the bore equals the flange NPS.
e An NPS 24 gasket is suitable for nozzles.
* Spiral Wound gasket dimensions for use on screwed or slip-on flanges.
20. www.flexitallic.eu
TECHNICAL
INFORMATION
Assembly techniques.
REQUIRED GASKET COMPRESSION
INITIAL GASKET
THICKNESS mm
RECOMMENDED COMPRESSED
THICKNESS mm
4.5
6.4
7.2
1.6
2.5
3.2
1.3/1.4
1.9/2.0
2.3/2.5
3.2/3.4
4.6/5.1
5.1/5.6
Gasket Style Selection
Ensure that the correct style of gasket has been selected for the appropriate application.
All PTFE filled Spiral Wound Gaskets for raised face and flat face flanges should utilise an inner and outer guide ring. When using Style ‘R’
Spiral Wound Gaskets ensure that a compression stop is incorporated into the flange arrangement.
Required Gasket Compression
For optimum sealing performance
Flexitallic Spiral Wound Gaskets should be compressed to the thicknesses shown in the table left.
Spiral Wound Gaskets with internal or external guide rings i.e. Style CG and CGI, should be fully compressed to the guide ring. This will not damage the gasket or affect the sealing performance, since the rings are provided as a compression limiting stop.
Flanges
Check that the flange faces are clean, in good condition and with a turned surface finish within the following range Ra 3.2 to 6.3 micro metres
(125 to 250 micro inches).
Bolting
Ensure that the correct bolting material is utilised to suit the operating conditions, taking into account the limitation of low yield strength bolts.
Ensure that the use of bolt lubrication is employed.
For torque tightening methods Flexitallic recommends the use of molybdenum disulphide bolt lubrication or similar nickel based compound.
Do not apply any lubricants when using PTFE coated fasteners. Consult with the coating manufacturers for product specific friction coefficients.
Tightening Procedures
Controlled tightening procedures should be used when installing Spiral Wound Gaskets. Flexitallic recommends that the use of hydraulic tensioning equipment be considered where possible for bolt diameters 11 ⁄
4
" and above. Please refer to
Flexitallic's Design Criteria for further technical information.
STRESS RELAXATION OF BOLT STRESS & ALLOYS
AT UPPER TEMPERATURE LIMITS
100
B8
B17/660
75
B8M
50
25
0
0 212
B80A
Carbon Steel
B7
B16
392 572 752 932
Temperature °F
1112 1292 1472
100 (10)
80 (8)
60 (6)
40 (4)
20 (2)
THE IMPORTANCE OF BOLT LUBRICATION
Lubricated with molybdenum disulphide As received condition from manufacturer
Dry bolt with no lubrication
27 (20) 54 (40) 81 (60) 108 (80)
Torque Nm (lbft)
136 (100) 163 (120)
21.
INSTALLATION
PROCEDURES
In order to ensure the optimum service life of metallic gasket materials, it is not only important to choose the correct material for the application but to install and maintain it correctly.
These guidelines are designed to assist the end user in the assembly of gasket materials.
Installation of Metallic Gaskets
Flange Condition
• Remove the old gasket and check that the flange faces are clean and free from indentations and scoring. Radial
(cross face) scoring is a particular concern and can lead to joint leakage
• For spiral wound gaskets, a surface finish of between 3.2μm to 6.3μm Ra
(125 to 250 micro inch) is recommended. Use a surface comparator to check flange finishes.
• Check that the flange faces are parallel or that the pipework is sufficiently flexible to allow the flanges to be pulled parallel and concentric without excessive bolt loads.
Gasket
• Always use a new gasket
• Check that the gasket is in good condition and that the dimensions are correct for the class and size of the flanges
• Do not use jointing compounds, grease or lubricants with metallic gasket materials. These compounds can affect the contact friction between the gasket and the flange and can lead to creep and premature joint failure
• If there is a requirement to fix the gasket to the flange prior to assembly
(e.g. large vertical flanges) then a light dusting of spray adhesive e.g. 3M 77 spray may be used. The adhesive should be applied sparingly and in isolated areas, and must be compatible with the fluid medium.
Bolting
• Ensure the bolt and nut threads are clean.
Apply bolt lubrication to the bolt and nut threads and to the face of the nut to be tightened. Do not apply grease or bolt lubricant to the joint face. After cleaning and lubrication it should be possible to run the nut along the full length of the bolt by hand. If this is not possible the bolts and nuts should be refurbished or replaced
• Scrape, wire brush or file as necessary the back face of each flange where the bolt heads and nuts are to sit, ensuring that the surfaces are clean and flat
• If possible use hardened flat washers to ensure even transfer of the load.
Installation
• Ensure that the gasket is installed centrally
• It is recommended that the bolts are tightened using a controlled method such as torque or tension. If using a torque wrench, ensure that it is accurately calibrated
• Tighten bolts in a star-like crossing pattern in the following sequence
• Finger tighten nuts
• Tighten to 30% of the final load
• Tighten to 60% of the final load
• Tighten to full load
• Make a final tightening sequence, working around the flange, tightening each bolt in turn until the specified torque is achieved.
After Installation
Check that the flange faces are parallel using a suitable tool e.g. the Flange Gap Tool, which is available to purchase via The Academy of Joint
Integrity (www.academyofjointintegrity.com)
22. www.flexitallic.eu
TECHNICAL
INFORMATION
BOLTING DATA
For ASME B16.5 & BS 1560 Flanges
NOM
PIPE
SIZE
(inches)
FLANGE
DIAMETER
2
2 ½
3
3 ½
4
½
¾
1
1 ¼
1 ½
12
14
16
18
5
6
8
10
20 27.50
24 32.00
10.00
11.00
13.50
16.00
19.00
21.00
23.50
25.00
3.50
3.88
7.00
7.50
8.50
9.00
4.25
4.62
5.00
6.00
CLASS 150
NO. OF
BOLTS
BOLT B.C.
FLANGE
DIAMETER DIAMETER DIAMETER
12
12
16
16
8
12
8
8
20
20
8
8
4
4
4
4
4
4
4
4
8.50
9.50
11.75
14.25
17.00
18.75
21.25
22.75
25.00
29.50
2.38
2.75
5.50
6.00
7.00
7.50
3.12
3.50
3.88
4.75
3 ⁄
4
3 ⁄
4
3 ⁄
4
5 ⁄
8
5 ⁄
8
5 ⁄
8
5 ⁄
8
1 ⁄
2
1 ⁄
2
1 ⁄
2
1 ⁄
2
1 ⁄
2
5 ⁄
8
7 ⁄
8
7 ⁄
8
1
1
1 1 ⁄
8
1 1 ⁄
8
1 1 ⁄
4
11.00
12.50
15.00
17.50
20.50
23.00
25.50
28.00
30.50
36.00
3.75
4.62
4.88
5.25
6.12
6.50
7.50
8.25
9.00
10.00
CLASS 300
NO. OF
BOLTS
BOLT B.C.
FLANGE
DIAMETER DIAMETER DIAMETER
CLASS 400
NO. OF
BOLTS
BOLT B.C.
FLANGE
DIAMETER DIAMETER DIAMETER
CLASS 600
NO. OF
BOLTS
BOLT B.C.
DIAMETER DIAMETER
4
4
4
4
4
8
8
8
8
8
8
12
12 7
16 1
⁄
8
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
5 ⁄
8
5 ⁄
8
1 ⁄
2
5 ⁄
8
3 ⁄
4
5 ⁄
8
16 1 1 ⁄
8
20 1 1 ⁄
8
20 1 1 ⁄
4
24 1 1 ⁄
4
24 1 1 ⁄
4
24 1 1 ⁄
2
9.25
10.62
13.00
15.25
17.75
20.25
22.50
24.75
27.00
32.00
2.62
3.25
5.88
6.62
7.25
7.88
3.50
3.88
4.50
5.00
11.00
12.50
15.00
17.50
20.50
23.00
25.50
28.00
30.50
36.00
3.75
4.62
4.88
5.25
6.12
6.50
7.50
8.25
9.00
10.00
9.25
10.62
13.00
15.25
17.75
20.25
22.50
24.75
27.00
32.00
2.62
3.25
5.88
6.62
7.25
7.88
3.50
3.88
4.50
5.00
4
4
4
4
4
8
8
8
8
8 7 ⁄
8
3 ⁄
4
3 ⁄
4
7 ⁄
8
5 ⁄
8
5 ⁄
8
1 ⁄
2
5 ⁄
8
3 ⁄
4
5 ⁄
8
8
12
7 ⁄
8
7 ⁄
8
12 1
16 1 1 ⁄
8
16 1 1 ⁄
4
20 1 1 ⁄
4
20 1 3 ⁄
8
24 1 3 ⁄
8
24 1 1 ⁄
2
24 1 3 ⁄
4
13.00
14.00
16.50
20.00
22.00
23.75
27.00
29.25
32.00
37.00
3.75
4.62
4.88
5.25
6.12
6.50
7.50
8.25
9.00
10.75
10.50
11.50
13.75
17.00
19.25
20.75
23.75
25.75
28.50
33.00
2.62
3.25
5.88
6.62
7.25
8.50
3.50
3.88
4.50
5.00
4
4
4
4
4
8
8
8
8
8 7 ⁄
8
3 ⁄
4
3 ⁄
4
7 ⁄
8
5 ⁄
8
5 ⁄
8
1 ⁄
2
5 ⁄
8
3 ⁄
4
5 ⁄
8
8 1
12 1
12 1 1 ⁄
8
16 1 1 ⁄
4
20 1 1 ⁄
4
20 1 3 ⁄
8
20 1 1 ⁄
2
20 1 5 ⁄
8
24 1 5 ⁄
8
24 1 7 ⁄
8
GENERAL NOTES
Flange Diameter and Bolt Diameter dimensions are in inches. Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
NOM
PIPE
SIZE
(inches)
FLANGE
. DIAMETER
1
½
¾ 5.12
1 5.88
¼
1 ½
4.75
6.25
7.00
2 8.50
2 ½ 9.62
3 9.50
4 11.50
5 13.75
6 15.00
8 18.50
10 21.50
12 24.00
14 25.25
16 27.75
18 31.00
20 33.75
24 41.00
CLASS 900
NO. OF
BOLTS
BOLT B.C.
FLANGE
DIAMETER DIAMETER DIAMETER
4
4
4
4
4 1
8 7 ⁄
8
8 1
8 7 ⁄
8
8 1 1 ⁄
8
8 1 1 ⁄
4
12 1 1 ⁄
8
12 1 3 ⁄
8
3 ⁄
4
3 ⁄
4
7 ⁄
8
7 ⁄
8
16 1 3 ⁄
8
20 1 3 ⁄
8
20 1 1 ⁄
2
20 1 5 ⁄
8
20 1 7 ⁄
8
20 2
20 2 1 ⁄
2
3.25
3.50
4.00
4.38
4.88
6.50
7.50
7.50
9.25
11.00
12.50
15.50
18.50
21.00
22.00
24.25
27.00
29.50
35.50
4.75
5.12
5.88
6.25
7.00
8.50
9.62
10.50
12.25
14.75
15.50
19.00
23.00
26.50
29.50
32.50
36.00
38.75
46.00
CLASS 1500
NO. OF
BOLTS
BOLT B.C.
FLANGE
DIAMETER DIAMETER DIAMETER
4
4
4
4
4 1
8 7 ⁄
8
8 1
8 1 1 ⁄
8
8 1 1 ⁄
4
8 1 1 ⁄
2
12 1 3 ⁄
8
3 ⁄
4
3 ⁄
4
7 ⁄
8
7 ⁄
8
12 1 5 ⁄
8
12 1 7 ⁄
8
16 2
16 2 1 ⁄
4
16 2 1 ⁄
2
16 2 3 ⁄
4
16 3
16 3 1 ⁄
2
3.25
3.50
4.00
4.38
4.88
6.50
7.50
8.00
9.50
11.50
12.50
15.50
19.00
22.50
25.00
27.75
30.50
32.75
39.00
5.25
5.50
6.25
7.25
8.00
9.25
10.50
12.00
14.00
16.50
19.00
21.75
-
-
-
26.50
30.00
-
-
CLASS 2500
NO. OF
BOLTS
BOLT B.C.
DIAMETER DIAMETER
4 3 ⁄
4
4
4
3 ⁄
4
7 ⁄
8
4 1
4 1 1 ⁄
8
8 1
8 1 1 ⁄
8
8 1 1 ⁄
4
8 1 1 ⁄
2
8 1 3 ⁄
4
8 2
12 2
-
-
-
-
-
12 2 1 ⁄
2
12 2 3 ⁄
4
-
-
-
-
-
3.50
3.75
4.25
5.13
5.75
6.75
7.75
9.00
10.75
12.75
14.50
17.25
-
-
-
21.25
24.38
-
-
GENERAL NOTES
Flange Diameter and Bolt Diameter dimensions are in inches. Figures stated are for information only.
Please refer to the current version of the original standards for dimensional information.
23.
TECHNICAL
INFORMATION
FACING DIMENSIONS
For ASME B16.5 & BS 1560 Flanges
Class 150, 300, 400, 600, 900, 1500 and 2500
12
14
16
6
8
4
5
10
18
20
24
1½
2
2½
3
3½
½
¾
1
1¼
NOM
PIPE
SIZE
(inches)
OUTSIDE DIAMETER See note 3
RAISED FACE,
LAPPED,
LARGE MALE,
& LARGE
TONGUES
See Note 5
SMALL
MALE
See Notes
4 & 5
SMALL
TONGUE
See Note 5
I.D. OF
LARGE
& SMALL
TONGUE
See Notes
3 & 5
OUTSIDE DIAMETER See note 3
LARGE
FEMALE &
LARGE
GROOVE
See Note 5
SMALL
FEMALE
See Notes
4 & 5
SMALL
GROOVE
See Note 5
HEIGHT
I.D. OF
LARGE
& SMALL
GROOVE
See Notes
3 & 5
RAISED
FACE CLASS
150 & 300
See Note 1
RAISED
FACE LARGE &
SMALL MALE
& TONGUE
CLASS 400, 600,
900, 1500 &
2500
See Note 2
DEPTH OF
GROOVE OR
FEMALE
4.12
5.00
5.50
6.19
7.31
8.50
10.62
12.75
1.38
1.69
2.00
2.50
2.88
3.62
15.00
16.25
18.50
21.00
23.00
27.25
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
3.31
4.19
4.69
5.12
6.25
7.44
9.31
11.19
0.94
1.25
1.44
1.81
2.06
2.81
13.44
14.69
16.69
19.19
20.94
25.19
3.81
4.69
5.19
5.75
6.88
8.06
10.06
12.06
1.44
1.75
1.94
2.31
2.56
3.31
14.31
15.56
17.69
20.19
22.06
26.31
2.75
3.38
3.88
4.38
5.44
6.44
8.44
10.56
0.78
1.00
1.25
1.56
1.81
2.31
12.56
13.81
15.81
17.81
19.81
23.81
4.19
5.06
5.56
6.25
7.38
8.56
10.69
12.81
1.44
1.75
2.06
2.56
2.94
3.69
15.06
16.31
18.56
21.06
23.06
27.31
3.38
4.25
4.75
5.19
6.31
7.50
9.38
11.25
1.00
1.31
1.50
1.88
2.12
2.88
13.50
14.75
16.75
19.25
21.00
25.25
3.75
4.62
5.12
5.69
6.81
8.00
10.00
12.00
1.38
1.69
1.88
2.25
2.50
3.25
14.25
15.50
17.62
20.12
22.00
26.25
2.69
3.31
3.81
4.31
5.38
6.38
8.38
10.50
0.72
0.94
1.19
1.50
1.75
2.25
12.50
13.75
15.75
17.75
19.75
23.75
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
GENERAL NOTES
Flange Diameter and Bolt Diameter dimensions are in inches.
Figures stated are for information only.
Please refer to the current version of the original standards for dimensional information.
NOTES
1. Regular facing for class 150 and 300 steel flanged fittings and companion flange standards is a 0.06in raised face. Classes 400, 600, 900, 1500, and 2500 pipe flanges and fittings are regularly furnished with a 0.25in raised face. In all cases the raised face must be added to the minimum flange thickness.
2. Regular facing for class 400, 600, 900, 1500, and 2500 flange thickness dimensions.
3. Tolerance of plus or minus 0.016in. is allowed on the inside and outside diameters of all facings.
4. For small male and female joints care should be taken in the use of these dimensions to insure that pipe used is thick enough to permit sufficient bearing surface to prevent the crushing of the gasket. The dimensions apply particularly on lines where the joint is made on the end of the pipe. Screwed companion flanges for small male and female joints are furnished with plain face and are threaded with American Standard Locknut Thread.
5. Gaskets for male-female and tongue-groove joints shall cover the bottom of the recess with minimum clearances taking into account the tolerances prescribed in Note 3.
24. www.flexitallic.eu
SPECIAL APPLICATION
GASKETS
Heat Exchanger
Gaskets.
Exchanger Gaskets with Spiral Wound Outer Ring
(ALTERNATIVES HE-CG, HE-CGI)
Flexitallic special HE-CGI Gaskets with spiral wound outer ring are primarily designed for TEMA male and female flanges and are custom built to suit the design conditions of individual heat exchanger vessels. These gaskets are available in an extensive range of materials.
This style incorporates several special features, as follows:
1. The outer wound nose to ensure correct sealing element location in the flange recess.
2. A spiral wound sealing element to ensure a positive seal under fluctuating temperature and pressure conditions.
3. A solid metal inner ring to protect the sealing element and act as a compression stop. As an optional extra, inner rings can also be supplied with nylon location screws to secure the gasket to the flange on assembly.
4. Can be supplied with pass partition bars in any configuration. Pass bars are secured to the inner ring and can be supplied in either solid metal or double jacketed construction.
STYLE HX-RIR
HEAT EXCHANGERS WITH FLAT FACE OR RAISED FACE FLANGES
SHOULD UTILISE STYLE CG AND CGI SPIRAL WOUND GASKETS
25.
SPECIAL APPLICATION
GASKETS
Carrier Ring
Gaskets.
The carrier ring concept consists of a solid metal ring with a machined recess in each face. Spiral Wound Gaskets are then located in each of the machined recesses.
This type of arrangement has been successfully used in sealing problematic flanges and vessels in the nuclear, power and petrochemical industries. The major benefits of the carrier ring assembly are due to the double spiral wound gasket being present.
This results in a very high recovery gasket, ensuring that the bolt load is maintained on the sealing elements when arduous pressure
/ temperature cycling occurs in service, thus maintaining a seal.
Carrier rings can be used on flat face, raised face or tongue and groove type flange, as well as non standard flange configurations.
They can be supplied for both small and large diameter nominal bores up to class 2500 pressure rating. Carrier rings are also tailor made to suit specific flange arrangements and design conditions.
Typical Applications
The carrier ring concept has been extensively used in the power generation industries, petrochemical and nuclear industries.
Typical applications are as follows:
Heat Exchanger
Operating Pressure: 2900 psi
Temperature: 200ºC
Tube Sheet
H.P. Heaters, Fossil Fired Generators,
H.O.T. Construction, Steam Service
Operating Pressure: 700 psi
Temperature: 370ºC
Materials Ultilised
316L/Flexicarb ®
17-7PH/Flexicarb ®
Inc X750 HT (Special high recovery material)
Catalytic Crackers
720ºC, Regenerators, 2980 mm OD
Hydrocarbon Service, Refineries
26. www.flexitallic.eu
SPECIAL APPLICATION
GASKETS
Traditional Spiral Wound Gasket with Inner Ring
Style LS ™ & LSI
Low Stress Range of Spiral Wound
Gaskets.
LSI Gasket LS Gasket
The LS gasket offers the same high integrity seal associated with the spiral wound gasket however, the LS and LSI has been designed in such a way that compression and sealing requirements are achieved under very low seating stresses. These gaskets are intended for use on class 150 and 300 applications, where customers traditionally do not use Spiral Wound Gaskets due to concerns about exceeding allowable design stresses.
The traditional spiral wound gasket has its steel windings protruding above the compression stop; this requires a significant loading stress to compress the gasket to its optimum operating thickness.
The LS and LSI gaskets have only soft Flexicarb ® or PTFE filler protruding above metal windings and guide ring; therefore as the gasket is compressed, the Flexicarb ® or PTFE filler is readily compressed thus producing the sealing mechanism at an earlier stage as compared to the conventionally manufactured spiral wound gasket.
The “LSI” gasket retains more of its initial stress or tightness, even when subjected to high temperatures, unlike PTFE sheet gaskets.
Available in a variety of metals, engineered to suit specific applications.
Metallic centering ring provides blowout resistance and compression stop
Colour coded and stamped centering ring for easy product identification
Available with
Flexicarb,
Thermiculite™, or PTFE filler
Low Stress construction seals at sheet gasket torques
Spiral wound design significantly reduces gasket creep
Metallic inner ring contains and protects sealing elements
Patent #5161807/5275423
5000
4000
3000
2000
1000
0
FLEXITALLIC LSI VS. PTFE SHEET
1/16” PTFE Sheet
Temperature
LSI Gasket
0.5
1.0
1.5
2.0
2.5
3.0
Elapsed Test Time (hours)
3.5
4.0
4.5
800
700
600
500
400
300
200
100
0
LOWER BOLT STRESS-REDUCED
FUGITIVE EMISSIONS
Flexitallic recommend minimum bolt torque figures for use with the ‘LSI’ gasket on ASME/B16.5 Flanges.*
NPS (in) N/m NPS (in) N/m
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
34
34
34
34
34
67
67
67
67
67
5
6
8
10
12
14
16
18
20
24
Note: Minimum Required torques may be even lower depending on gasket size and bolt materials. Please contact Flexitallics Technical
Department for more information.
*Above torque values are for class 150 ASME flanges
Torque values for 300# available on request
111
111
111
178
178
273
273
395
397
559
GENERAL NOTES
Dimensions in mm.
Figures stated are for information only. Please refer to the current version of the original standards for dimensional information.
Please select correct gasket style for your particular application.
See page 6 “Gasket Selection”.
27.
SPECIAL APPLICATION
GASKETS
For Boiler Cap and
Manhole Cover
Assemblies.
Standard Style M
Style M & MC & MCS
Spiral Wound Gaskets for Boiler
Manhole Cover Assemblies.
The Flexitallic manhole gasket spiral constructions incorporate modified compression values to provide seating loads within the normal range of cover assemblies.
Size/Range Specification
Available in circular, obround, and oval shapes to suit standard manhole plate configurations.
Style T Pear Style T Square
Style T
Spiral Wound Gaskets for Boiler Handhole and Tubecap
Assemblies.
The design features of the basic Flexitallic spiral wound construction alleviate the need for sealing compound. Particularly suitable where old and pitted faces have rendered other gaskets ineffective.
Size/Range Specification
Available in several standard shapes:
Supplied in thicknesses of 3.2mm (0.125in.) or 4.5mm (0.175 in.).
The standard thickness of 4.5mm (0.175in.) is recommended for use in assemblies where the seat is relatively broad and bolting load is low.
28. www.flexitallic.eu
Gaskets for boiler handhole, tubecap and manhole covers incorporating the unique
Flexitallic Spiral Wound profile and specially manufactured with Flexicarb ® filler, are ideal for corrosive, high pressure or temperature duties.
Flexitallic’s anticipation of developments in modern steam generating and engineering equipment and ability to design to specific requirements are the guarantee of the perfect seal at minimum maintenance cost with consistently high standards of performance.
• High safety factor related to specific operating conditions
• Compression loadings proportional to safe stresses of cover assemblies
• Resilient under concentrated and fluctuating loads
• Prolonged trouble-free service
• Reduced seat cleaning time
Materials
Standard materials are Type 304 Stainless Steel and Flexicarb windings. Special materials to suit specific operating conditions are available.
To Order
With all orders or inquiries please submit the following: a) Name of boiler or equipment manufacturer b) Gasket style c) Dimensions of gasket d) Gasket thickness e) Flange width of gasket f) Pressure service rating g) Gasket material preference
SPECIAL APPLICATION
GASKETS
Thermiculite ® 835 Spiral Wound Gasket with Heat Treated Inconel X-750 Winding
Thermiculite ® 835 Heat
Treated Inconel X-750
Spiral Wound Gasket.
Increased safety.
Proven results.
Proven cost savings.
Severe cyclic conditions?
For the most demanding cyclic conditions, the choice is Flexitallic’s Thermiculite ® 835 Spiral
Wound Gasket with Heat Treated Inconel
X-750 winding.
Differential thermal expansion and contraction of components in a bolted joint, due to the effects of cyclic conditions, requires that extra resiliency be built into the joint or the gasket to compensate for fluctuating load conditions.
Normal gasket materials do not provide sufficient resiliency, and therefore cannot compensate for the adverse effects of cyclic conditions. Special
Heat Treated Inconel X-750 gasket materials have been developed by Flexitallic to ensure that joint integrity is maintained during thermal cycles.
In OEM and End User testing comparing the performance of standard 316L SS windings vs. Heat Treated Inconel X-750 windings
(precipitation hardened), HT Inconel X-750 winding material significantly increased the yield strength resulting in increased springback before leakage, or usable recovery.
Specify Flexitallic’s proprietary precipitation hardened Inconel X-750 windings in applications where there are concerns about:
• Cyclic conditions
• Differential thermal expansion and contraction
• Radial shear
• Bolt relaxation
• Hot torquing
• Mating flanges of dissimilar metals
When ordering this material it is important that you specify Precipitation
Hardened Inconel X750 Windings, or Inconel X750HT.
FULL SCALE TEST RESULTS (AVERAGED)
GASKET DIMENSIONS 1032 x 1067 x 4.5
Winding Material
Initial Thickness
Compressed Thickness
Total Springback
Spingback to
Leakage @ 2500 psi
Test Pressure
316L SS Heat Treated Inconel X-750
4.5
4.5
3.1
0.3
3.1
0.3
0.1
0.2
Ethylene Cracker Unit
29.
SPECIAL APPLICATION
GASKETS
Low Emission Gasket.
150
100
50
DIAGRAM A
Compression Range
128
T T +0.76
T +1.27
Defection (mm)
T - Guide ring thickness
The Flexitallic Low Emission gasket is a high performance spiral wound gasket that has been specially engineered to exceed stringent oil and gas industry fugitive emissions requirements, such as those found in the Chevron Fugitive
Emissions Test (CFET).
Gaskets to suit standard ASME B16.5 and B16.47 flanged connections remain diametrically unchanged and in this respect are dimensionally compliant with ASME
B16.20. Enhanced sealing performance is achieved by modification of the sealing element. The key design features are specification of the filler thickness range
0.36 to 0.41mm; ASME B16.20 does not specify filler thickness and typically 0.5mm
thick is used. In addition filler protrusion is specified to be within the range of 0.2 to
1.0mm above the metal winding; resulting in a thicker sealing element.
Compression requirements for LE gaskets are different from those specified in ASME
B16.20 that stipulates a compressed sealing element
thickness for a given bolt stress irrespective of pressure class. LE gaskets are required to compress within specified limits based on directly applied gasket stress. Gaskets made to LE construction requirements are designed to compress to between 0.76 and 1.27mm above the guide ring thickness when subjected to a compressive stress of 128 MPa
(see diagram A, left).
Independent testing in accordance with the CEFT protocol has shown that
Flexitallic LE gaskets comfortably exceed allowable fugitive emissions leakage levels. Leakage testing of ASME Class 150
CGI spiral wound gaskets in accordance with the PVRC ROTT procedure shows that
Flexitallic LE gaskets require significantly lower bolt stress to achieve a T3 tightness class (see diagram B, below).
For more information regarding Flexitallic
Low Emission spiral wound gaskets please contact the Flexitallic Applications
Engineering Team.
B: STD SWG V LE SWG 150 CLASS FLANGE T3 PVRC TIGHTNESS
250
200
150
100
450
400
350
300
50
0
1
⁄2
3
⁄4 1 1
1
⁄2 2 3 4 6 8 10
Nominal Pipe Size (NPS) inches
12 14 16 18
LE
ST D
20 24
30. www.flexitallic.eu
SPECIAL APPLICATION
GASKETS
The Baker Gasket.
For HF Acid & other hazardous chemical applications.
Problem
A leak occurs on HF service
• HF can attack the bolts causing bolt failure.
• A small emission goes undetected.
Solution
• Prevents HF attacking the bolts.
• Early detection of small leaks.
• Containment of HF emissions.
• Improves maintenance (detect & repair).
• Requires no modification to the flanges.
• Designed to suit Class 150 & 300 flanges.
• Contains no respirable fibers.
What are the benefits?
The Baker gasket offers the user the reliability of a spiral wound gasket with the additional back-up of an emissions containment system should a leak occur. Reduced maintenance costs through an improved ‘Detect & Repair’ program. Improvements in plant operators Health & Safety profile.
A PTFE ring is attached to the external guide ring. Any emissions will be confined within the flange arrangement.
PTFE Channel Ring
Any HF emissions are focused to the tagged area where a reaction with the detector paint can be easily observed. This concept has been successfully field tested.
Spiral Wound Gasket utilising PTFE or Flexicarb filler materials
31.
THE ACADEMY OF
JOINT INTEGRITY
Flexitallic can offer speciality training and consultancy via
The Academy of
Joint Integrity.
“Fundamental to successful joint integrity is the training of the personnel involved in the process of inspection, assembly and tightening of bolted connections.
The Academy provides a range of cost effective tailored training courses to suit the needs of the client or contractor.”
Gary Milne
Technical Training Manager
Training Courses
The Academy of Joint Integrity offers
Accredited and Awareness Training
Courses to all personnel who are involved in the assembly and tightening of flanged bolted connections. Mentoring and assessment programmes also complement the training provision. All our training courses are given by industry professionals who themselves have current and relevant industry-based experience.
The Academy is a member of the Energy
Institute and has contributed to the latest
UK Oil and Gas best practice guidelines, specific to Joint Integrity Management.
The Academy is also an active member of an ASME sub-committee, developing new initiatives for Pressure Boundary
Bolted Flange Joint Assembly.
Academy training courses incorporate
ECITB Mechanical Joint Integrity MJI10,
MJI18, MJI19, Energy Institute, European
(EN1591 part 4) and ASME PCC-1 2013 methods and procedures.
Location
The Academy has dedicated facilities in Aberdeen, Teesside, Humberside and West Yorkshire.
Training is also offered within our overseas operations.
Courses
Training can be delivered in a variety of ways:
• At the Academy, utilising our purpose built training centres
• At the clients premises, utilising mobile training rigs and equipment
• At one of our training facilities in
Aberdeen, Teesside and Humberside
Benefits
• Legislation compliance
• Motivated workforce with best practice skills
• Reduced costs with increased asset integrity
• Access to the latest technical standards and procedures
• Sealing and integrity modules providing greater knowledge
• Alliance and structured support from a world class technical / training team
For further information on the range of courses available visit www.academyofjointintegrity.com
32. www.flexitallic.eu
PRODUCT
RANGE:
For more information on our range of product and services please visit www.flexitallic.eu or email [email protected]
• Corriculite ®
• Change ™ Gasket
• Thermiculite ®
• I-Flex Isolation Kits
• Sigma ® PTFE
• Flange Rescue Gaskets (FRG)
• Spiral Wound Gaskets
• Kammprofile Gaskets
• Ring Type Joints
• HDS1 Insulating Kits
• Novus Sheet Jointing
• Cut Gaskets
• Solid Metallic Gaskets
• Compression Packings
• Academy of Joint Integrity
– Training
www.flexitallic.eu
UNITED KINGDOM
Flexitallic UK Ltd
Scandinavia Mill
Hunsworth Lane
Cleckheaton
West Yorkshire, BD19 4LN
UK
Tel. +44 1274 851273
Fax. +44 1274 300303 www.flexitallic.eu
Branches also in Aberdeen,
Middlesbrough, Ellesmere
Port and Cardiff .
UNITED ARAB EMIRATES
Flexitallic LLC
Plot 108, Road E
Al Hamra Industrial Area
Ras Al Khaimah
UNITED ARAB EMIRATES
Tel. +971 (0)7 243 4305
Fax. +971 (0)7 243 4306 www.flexitallic.ae
SINGAPORE
Flexitallic Ltd
Singapore Branch
Level 42 Suntec Tower Three
8 Temasek Boulevard
SINGAPORE
038988
Tel: +65 68663638 www.flexitallic.eu
UNITED STATES
Custom Rubber Products
2625 Bennington
Houston
Texas 77093
USA
Tel. +1 713 691 2211
Fax. +1 713 691 3005 www.customrubber.com
FRANCE
Siem Supranite a Flexitallic Company
31-33 Rue de Mogador
75009 Paris
FRANCE
Tel. +33 (0)1 48 88 88 88
Fax. +33 (0)1 47 66 88 44 www.siem.fr
GERMANY
Flexitallic GmbH
Halskestr. 4a
47877 Willich
GERMANY
Tel: +49 (0) 2154 95363-0
Fax: +49 (0) 2154 95363-29 www.flexitallic-gmbh.de
KAZAKHSTAN
Novus Sealing Caspian LLP a Flexitallic Joint Venture
7v Atambayev St.
Atyrau 060005
REPUBLIC OF KAZAKHSTAN
Tel: +7 7122 309936
Fax: +7 7122 309937 www.novussealingcaspian.com
CHINA
Flexitallic Gasket Technology
(Suzhou) Co., Ltd
Building A, 1868 Guangming Rd
Technological Development Zone
WuJiang Economic 215200
CHINA
Tel. +86 512 6303 2839
Fax. +86 512 6303 2879 www.china.flexitallic.com
CANADA
Flexitallic Canada Ltd
4340 - 78 Avenue
Edmonton
Alberta, T6B 3J5
CANADA
Tel. +780 466 5050
Fax. +780 465 1177 www.flexitallic.ca
UNITED STATES
Flexitallic US LLC
6915 Highway 225
Deer Park
Texas 77536
USA
Tel. +1 281 604 2400
Fax. +1 281 604 2415 www.flexitallic.com
About The Flexitallic Group
The Flexitallic Group is a global leader in specialised sealing solutions and products serving the oil and gas, power generation, chemical and petrochemical industries in emerging and developed markets. Focused on the upstream, downstream and power generation sectors, it has operations in France, the
United States, Canada, Mexico, the United Kingdom, Germany, the United Arab Emirates, Kazakhstan and China plus a network of worldwide licensing partners and distributors.
www.theflexitallicgroup.com
FLEX003–DEC2017–REV6
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