Data Sheet

1377 Duragauge ® Pressure Gauge

TM

FEATURES

„

Solid front safety case with pressure relief back

„

Dial sizes 41/2˝, 6˝ and 81/2˝

„

±0.5% of span (ASME B40.100 Grade 2A)

„

Customizable dial printing options

TYPICAL USES

„

Refineries

„

Chemical and petrochemical plants

„

Offshore oil rigs

„

Water and wastewater pressure control

„

Pulp and water

„

Mining and metals

„

Equipment skids

„

Specialized OEM equipment

1377

4 1 ⁄

2

˝ dial size

SPECIFICATIONS

Accuracy:

Dial Sizes:

Process Connection:

±0.5% of span (ASME B40.100 Grade 2A)

4 1 ⁄

2

˝, 6˝, 8 1 ⁄

2

˝

1 ⁄

4

NPT, 1 ⁄

2

NPT,

9 ⁄

16

-18 UNF-2B (high pressure connection)

Lower, back Process Connection

Location:

Ranges: Vacuum, compound to 30,000 psi

Case Style:

Movement:

Window Material:

Pointer:

Weather Protection:

Solid front with pressure relief back

Rotary, adjustable, 400 SS, Teflon ™ coated

Glass (STD.), safety glass, acrylic, non-glare glass (OPT.)

Micrometer, adjustable, aluminum, maximum

Dry case: Case not sealed, recommended for weather protected environment only

Stem, surface, flush or remote

PLUS!

™ Performance

Mounting:

Dampening:

Approvals: CE/UKCA, CRN

WETTED COMPONENTS

Bourdon Tube Process Connection

316L SS

316L SS

K-Monel ® 500 Tube

C510 Phos. Bronze

316L SS

Steel

Monel ® 400

Brass

NON-WETTED COMPONENTS

Joints

Welded

Welded

Welded

Silver brazed

Case Ring

Aluminum, black epoxy Steel, hinged, black enamel

Back Cover

300 SS

KEY BENEFITS

• Ideal for panel mounting

• Available 8½˝ dial size for remote reading

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft ® , Duragauge ® , DuraVis ™ , Plus!

™ , Trust the Shield ® are trademarks and Gold Service SM is a service mark of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon ® ,

Inconel ® , Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks

©2022 Ashcroft Inc. 1377_gauge_ds_RevH_11-02-22

Version

Dry

MIN/MAX TEMPERATURE LIMITS

Ambient

-20 °F to 200 °F

(-29 °C to 93 °C)

Process

-20 °F to 250 °F

(-29 °C to 121 °C)

Storage

-40 °F to 250 °F

(-40 °C to 121 °C) ashcroft.com

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Data Sheet

1377 Duragauge ® Pressure Gauge

ORDERING CODE Example:

Dial Size/Model Code

451377 S S 04 L

451377 - 4 1 ⁄

2

˝ aluminum case

601377 - 6˝ aluminum case

851377 - 8 1 ⁄

2

˝ aluminum case

System (tube and process connection)

A - Bronze tube, brass process connection, max. pressure connection 1,000 psi

P - K-Monel ® 500 tube, Monel ® 400 process connection, max. pressure 30,000 psi

R - 316L SS tube, steel process connection, max. pressure 20,000 psi

S - 316 SS tube and 316L SS process connection, max. pressure 20,000 psi

451377

S

WW - Inconel ® 718 tube and process connection

Case Design

S - Solid front case, dry

Process Connection Sizes

02 - 1 ⁄

4

NPT Male, N/A for ranges over 20,000 psi

04 - 1 ⁄

2

NPT Male, N/A for ranges over 20,000 psi

09 - 9 ⁄

16

18 UNF-2B, high pressure fitting, standard for pressures over 20,000 psi

Process Connection Location

L - Lower

B - Back

D - Side (3 o’clock)

E - Side connection (9 o’clock)

T - Top connection

Options (If choosing an option(s) must include a “X”) (See table 1 on page 3 for more options)

LL - PLUS!

™ Performance

NZ - PLUS!

™ Performance, silicone free (dry gauges)

04

L

6B - Cleaned for gaseous, oxygen service

NH - Stainless Steel tag wired to case

5G - Attach one accessory to gauge. Applicable to PL02 pressure limiting valve, V01,V02 valves, 1098, 1100, 1198,

2198 siphons, 7001, 7004 needle valves, 1115 capillary, 1106 pulsation dampner, 1112, PD02 pressure snubbers, MDV swivel adapter, 2265 electric warning contact

Range (coding examples only, see range table on page 4 for all standard ranges)

Single Scales

15# - 15 psi

1BR - 1 bar

1KG - 1 kg/sm 2

100KP - 100 kPa

Dual Scales

15#/BR - 15 psi inner scale, 1 bar outer scale

1BR/# - 1 bar inner scale, 15 psi outer scale

When selecting a diaphragm seal or isolation ring, refer to the Min/Max Guide for compatibility with this gauge or scan the QR code to the right.

XLL 15#

X__

LL

15#

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft ® , Duragauge ® , DuraVis ™ , Plus!

™ , Trust the Shield ® are trademarks and Gold Service SM is a service mark of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon ® ,

Inconel ® , Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks

©2022 Ashcroft Inc. 1377_gauge_ds_RevH_11-02-22

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Data Sheet

1377 Duragauge ® Pressure Gauge

TABLE 1 (Ordering Codes Continued)

CODE OPTION

Maximum pointer (adjustable, N/A with liquid filled or hermetically sealed cases)

Hydrostatic/pneumatic testing (system pressurized to 150% of rated system pressure for 5 minutes. Overload stop STD.)

Throttle screw (STD. with liquid filled, hermetically sealed or PLUS!

™

Traceable calibration certificate

DuraVis ™ retroreflective dial (41/2˝ case only)

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft ® , Duragauge ® , DuraVis ™ , Plus!

™ , Trust the Shield ® are trademarks and Gold Service SM is a service mark of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon ® ,

Inconel ® , Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks

©2022 Ashcroft Inc. 1377_gauge_ds_RevH_11-02-22

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Data Sheet

1377 Duragauge ® Pressure Gauge

STANDARD PRESSURE RANGES psi

30IMV

–

300#

–

400#

500#

600#

800#

–

60#

–

100#

120#

–

160#

200#

–

V/15#

–

V/30#

–

V/60#

–

V/100#

–

15#

20#

–

30#

–

1000#

1500#

2000#

–

3000#

–

4000#

5000#

6000#

8000#

–

10000#

15000#

20000#

-

30000#

50000#

-

80000#

-

100000# bar

N1BR

–

100BR

–

160BR

–

250BR

–

–

400BR

–

600BR

–

1000BR

-

1600BR

-

2500BR

-

4000BR

-

6000BR

-

16BR

–

25BR

–

–

40BR

–

60BR

4BR

6BR

–

–

10BR

–

–

N1/0.6BR

–

N1/1.5BR

–

N1/3BR

–

N1/5BR

–

N1/9BR

1BR

–

1.6BR

–

2.5BR

kPa

N100KP

–

10000KP

–

16000KP

–

25000KP

–

–

40000KP

–

60000KP

–

100000KP

-

-

-

-

-

-

-

-

-

400KP

600KP

–

–

1000KP

–

–

1600KP

–

2500KP

–

–

4000KP

–

6000KP

N100/60KP

–

N100/150KP

–

N100/300KP

–

N100/500KP

–

N100/900KP

100KP

–

160KP

–

250KP kg/cm 2

N1KG

16KG

–

25KG

–

–

40KG

–

60KG

4KG

6KG

–

–

10KG

–

–

N1/0.6KG

–

N1/1.5KG

–

N1/3KG

–

N1/5KG

–

N1/9KG

1KG

–

1.6KG

–

2.5KG

–

100KG

–

160KG

–

250KG

–

–

400KG

–

600KG

–

1000KG

-

1600KG

-

2500KG

4000KG

6000KG

mPa

N1MP

–

10MP

–

16MP

–

25MP

–

–

40MP

–

60MP

–

100MP

-

160MP

-

250MP

-

400MP

-

600MP

-

0.4MP

0.6MP

–

–

1MP

–

–

1.6MP

–

2.5MP

–

–

4MP

–

6MP

0.1/0.06MP

–

N.1/0.15MP

–

N.1/0.3MP

–

N.1/.5MP

–

N.1/.9MP

0.1MP

–

0.16MP

–

0.25MP

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft ® , Duragauge ® , DuraVis ™ , Plus!

™ , Trust the Shield ® are trademarks and Gold Service SM is a service mark of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon ® ,

Inconel ® , Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks

©2022 Ashcroft Inc. 1377_gauge_ds_RevH_11-02-22

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Data Sheet

1377 Duragauge ® Pressure Gauge

DIMENSIONS in [ ] are millimeters

Drawings are for reference only, consult Ashcroft for specific dimensional drawings.

Dial Size

Inches

4

1

⁄

2

6

8 1

⁄

2

A

6

[152]

7 9 ⁄

16

[192]

10 1 ⁄

16

[257]

B C D E

2 7 ⁄

8

[73]

4 3 ⁄

4

[121]

2 7 ⁄

8

[73]

4 3 ⁄

4

[121]

2 7 ⁄

8

[73]

4 3 ⁄

4

[121]

1 1 ⁄

16

[27]

1 1 ⁄

16

[27]

1 1 ⁄

16

[27]

5 3 ⁄

8

[137]

7

[178]

9 5 ⁄

8

[244]

F G H K M

1 5 ⁄

8

[41]

1 5 ⁄

8

[41]

3 15 ⁄

16

[100]

4 1 ⁄

2

[114]

1 5 ⁄

8

[41]

6

[152]

1 3 ⁄

8

[35]

1 3 ⁄

8

[35]

1 3 ⁄

8

[35]

1 1 ⁄

16

[27]

4 7 ⁄

8

[124]

1 1 ⁄

16

[27]

6 1 ⁄

2

[165]

1 1 ⁄

16

[27]

9

[229]

P S T U CC LL

2 1 ⁄

8

[54]

2 1 ⁄

8

[54]

2 1 ⁄

8

[54]

5 ⁄

8

[16]

5 ⁄

8

[16]

5 ⁄

8

[16]

5 ⁄

8

[16]

5 ⁄

8

[16]

5 ⁄

8

[16]

3 ⁄

4

[19]

#10-24

1 ⁄

8

1 ⁄

2

[3][13]

3 ⁄

4

[19]

1 ⁄

4

-20

1 ⁄

8

1 ⁄

2

[3][13]

3 ⁄

4

[19]

1 ⁄

4

-20

1 ⁄

8

1 ⁄

2

[3][13]

Weight

(lbs)

2.5

2.5

4.5

1377 4½˝ and 6˝ lower connection

A B

1377 4½˝ and 6˝ back connection

S

U

Nuts & w ashers not supplied by

Ashcroft

G

3 Mounting studs CC threaded equally spaced on E dia.

Bolt Circle

P

D

1377 8½˝ lower connection

A B

K

LL

T

F

C

M

Hole in panel

H

1377 8½˝ back connection

S

U

Nuts & washers not supplied by

Ashcroft

G

3 Mounting studs CC threaded equally spaced on E dia. Bolt Circle

P

D

T

K

LL

H

T

F

C

M

Hole in panel

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

Ashcroft ® , Duragauge ® , DuraVis ™ , Plus!

™ , Trust the Shield ® are trademarks and Gold Service SM is a service mark of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Halocarbon ® ,

Inconel ® , Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks

©2022 Ashcroft Inc. 1377_gauge_ds_RevH_11-02-22

5 of 5 ashcroft.com

| 1.800.328.8258 | Contact Us