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Data Sheet
1220 General Service Pressure Gauge
FEATURES
Solid-front case design for safety
Wide selection of Bourdon tube materials and pressure ranges
PLUS!
™ Performance option to dampen vibration, shock and pulsation effects to provide liquid-fill performance in a dry gauge
TYPICAL USES
Deionized water
Refrigeration
Specialized OEM equipment
SPECIFICATIONS
Accuracy:
Size:
Ranges:
Process Connection
Location:
Process Connection
Size:
Case Style:
Movement:
±1% of span (ASME B40.100 Grade 1A)
4 1 ⁄
2
˝, 6˝, 8 1 ⁄
2
˝
Vacuum, compound to 30,000 psi
Lower or back
1 ⁄
4
NPT, 1 ⁄
2
NPT
Solid front
400 SS, Teflon ™ coated pinion gear and segment
1220
4 1 ⁄
2
˝ Gauge Shown
6˝, 8 1 ⁄
2
˝ available
KEY BENEFITS
• Provides durable, reliable performance for many industrial applications
• Versatile general service gauge
Window Material:
Dial:
Pointer:
Weather Protection:
Dampening:
Mounting Option:
Glass
Aluminum, white background, black figures and intervals
Micrometer adjustable
Dry case, case not sealed, recommended for weather protected environment only
PLUS!
™ Performance and throttle plugs
Flush, stem, surface
Version
Dry
WETTED COMPONENTS
Bourdon Tube
Phosphor bronze tube
316L Stainless steel
K Monel ®
NON-WETTED COMPONENTS
Case
4½˝: Black phenolic, solid front
6˝: Black polypropylene, solid front
8½˝: Black aluminum, solid front
Process Connection Material
Brass brazed
316L Stainless steel
K Monel
Back Cover
4 ½˝: Polycarbonate
6˝: Polypropylene
8 ½˝: 300 SS
®
Ring
4 ½˝: Treaded, Polycarbonate
6˝: Polypropylene
8 ½˝: Steel, hinged, black enamel
MIN/MAX TEMPERATURE LIMITS
Ambient Process Storage
-20 °F to 200 °F
(-29 °C to 93 °C)
-20 °F to 250 °F
(-29 °C to 121 °C)
-40 °F to 250 °F
(-40 °C to 121 °C)
1 of 4
All specifications are subject to change without notice. All sales subject to standard terms and conditions.
Ashcroft ® , Plus!
™ and Trust the Shield ® are trademarks of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks
©2022 Ashcroft Inc. 1220_gauge_ds_RevD_11-08-22 ashcroft.com
| 1.800.328.8258 | Contact Us
Data Sheet
1220 General Service Pressure Gauge
ORDERING CODE Example:
Dial Size/Model Code
451220 - 4 1 ⁄
2
˝ phenolic case, solid front
601220 - 6˝ polypropylene case, solid front
851220 - 8 1 ⁄
2
˝ aluminum case, solid front
System
A - Phosphor bronze tube, brass process connection (1,000 psi Max.)
P - K-Monel ® tube, Monel ® 400 process connection (30,000 psi Max.)
S - 316L SS (20,000 psi Max.)
Process Connection Size
02 - 1 ⁄
4
NPT Male
04 - 1 ⁄
2
NPT Male
Process Connection Location
L - Lower
B - Lower back
Options (If choosing an option(s) must include an “X”)
C4 - Traceable calibration certificate
LL - PLUS!
™ Performance
TS - Throttle screw (standard with PLUS!
™ )
PD - Acrylic window
SG - Safety glass
EP - Maximum pointer, adjustable (4 1 ⁄
2
˝ and 6˝ dial only)
SH - Red set hand, stationary
NH - Stainless steel tag wired to case
DA - Dial marking (text marking on dial)
EO - Red set hand adjustable
EQ - Minimum pointer
PR - Receiver gauge
BD - Black dial
OS - Overload stop
VS - Underload stop
6B - Oxygen service
H - Hermetic seal
56 - Flush mounting ring
Range (See range table on page 3 for all standard ranges)
100# - 100 psi
Ordering Code
Connection (2)
P
A
S
(4)
Bourdon Tube & Tip
Material (1) (all joints TIG welded except “A”)
Phosphor Bronze Bras Tip,
Silver Brazed
BOURDON SYSTEM SELECTION
Socket
Material
Brass
Tube
C-Tube
316 SS
K Monel ®
316 SS
Monel ® 400
C-Tube
Helical
C-Tube
Helical
Notes:
(1) For selection of the correct Bourdon system material, see the media application table.
(2) Optional connections available:
(3)
1 ⁄
4
NPT where
Single-scale and dual-scale ranges available.
1 ⁄
2
NPT is standard,
(4) 6˝ and 8 1 ⁄
2
˝ dial not available with Monel ® system.
1 ⁄
4
NPT where 1 ⁄
2
NPT is standard.
451220 S
451220
S
Range
Selection
Type (psi)
15/1,000
15/1,500
2,000/20,000
15/1,500
2,000/30,000
02
02
B
B
XC4 100#
X__
C4
1 ⁄
4
1 ⁄
4
1 ⁄
2
1 ⁄
4
1 ⁄
2
100#
NPT
Connection (2)
2 of 4
All specifications are subject to change without notice. All sales subject to standard terms and conditions.
Ashcroft ® , Plus!
™ and Trust the Shield ® are trademarks of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks
©2022 Ashcroft Inc. 1220_gauge_ds_RevD_11-08-22 ashcroft.com
| 1.800.328.8258 | Contact Us
Data Sheet
1220 General Service Pressure Gauge
SINGLE SCALE psi
30IMV
-
30IMV&15#
-
30IMV&30#
30IMV&60#
-
1000#
1500#
2000#
-
3000#
-
4000#
5000#
300#
-
400#
600#
800#
-
30IMV&100#
15#
-
30#
-
60#
-
100#
160#
200#
-
6000#
-
8000#
10000#
15000#
-
25BR
-
40BR
-
60BR
2.5BR
4BR
6BR
-
10BR
-
-
16BR
-
N1/5BR
-
N1/9BR
1BR
1.6BR
bar
N1BR
N1/0.6BR
-
N1/1.5BR
-
N1/3BR
-
100BR
-
160BR
-
250BR
-
-
400BR
600BR
-
-
1000BR
-
2.5MP
-
4MP
-
6MP
0.25MP
0.4MP
0.6MP
-
1MP
-
-
1.6MP
Mpa
N0.1MP
N0.1/0.6MP
-
N0.1/15MP
-
N0.1/3MP
-
N0.1/5MP
-
N0.1/9MP
0.1MP
0.16MP
-
-
10MP
-
16MP
-
25MP
-
-
40MP
60MP
-
-
100MP
250KP
400KP
600KP
-
1000KP
-
-
1600KP
-
2500KP
-
4000KP
-
6000KP kPa
N100KP
N100/60KP
-
N100/150KP
-
N100/300KP
-
N100/&500KP
-
N100/900KP
100KP
160KP
-
-
10000KP
-
16000KP
-
25000KP
-
-
40000KP
60000KP
-
-
100000KP
-
25KG
-
40KG
-
60KG
2.5KG
4KG
6KG
-
10KG
-
-
16KG
-
N1/5KG
-
N1/9KG
1KG
1.6KG
kg/cm 2
N1KG
N1/0.6KG
-
N1/1.5KG
-
N1/3KG
-
100KG
-
160KG
-
250KG
-
-
400KG
600KG
-
-
1000KG
NOTES
All specifications are subject to change without notice. All sales subject to standard terms and conditions.
Ashcroft ® , Plus!
™ and Trust the Shield ® are trademarks of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks
©2022 Ashcroft Inc. 1220_gauge_ds_RevD_11-08-22
3 of 4 ashcroft.com
| 1.800.328.8258 | Contact Us
Data Sheet
1220 General Service Pressure Gauge
DIMENSIONS in [ ] are millimeters
For reference only, consult Ashcroft for specific dimensional drawings
4 1 ⁄
2
˝ LOWER & BACK CONNECTION DIMENSIONS
Dial Size
(inches)
A B C D E F G H J
4 1 ⁄
2
5 13 ⁄
16
[148]
3 3 ⁄
8
[86]
5 1 ⁄
16
[129]
1 5 ⁄
8
[41]
5 3 ⁄
8
[137]
1 5 ⁄
8
[41]
3 15 ⁄
16
[100]
3 ⁄
4
[20]
1
[25]
L
0.218
[6]
A B
L
LL Mounting hardware supplied by Ashcroft
T
5 ⁄
8
[16]
V
2 5 ⁄
8
[67]
Weight
(lbs)
2 1 ⁄
2
C
H
T
F
M
Hole in panel
A-1
CC
3L dia. holes on E dia. B.C.
1 /
4
NPT or
1 /
2
NPT
T
G
D
K
FLUSH MOUNTING RING GAUGE TYPE
Dial Size A1
4 1 ⁄
2
˝
6
[152]
M
5 3 ⁄
8
[136]
CC
#10-24
LL
1 ⁄
8
- 5 ⁄
16
[3] - [8]
Dial Size
(inches)
6
A
6 3 ⁄
8
[163]
B
2 7 ⁄
16
[62]
C
4 3 ⁄
4
[120]
A
D
7 ⁄
8
[22]
B
C
E
6˝ LOWER & BACK CONNECTION DIMENSIONS
F G H H1 J KK L
LL
Min. Max.
5 3 ⁄
8
[137]
1 5 ⁄
8
[42]
3 15 ⁄
16
[100]
4 9 ⁄
16
[116]
4 9 ⁄
32
[109]
5 ⁄
64
[2]
2 11 ⁄
16
[69]
0.218
[6]
1 ⁄
16
[2]
1 ⁄
2
[13]
M
6
[152]
H
3L Dia. holes on E Dia. B.C.
KK
J
H-I
LL
F
C
M
Hole in panel
S
11 ⁄
16
[17]
G
T
T
Dial Size
(inches)
8 1 ⁄
2
A
10 1 ⁄
16
[257]
A
B
2 7 ⁄
8
[73]
C
4 3 ⁄
4
[121]
D
D
1 1 ⁄
16
[27]
B
9 5 ⁄
8
[244]
1 5 ⁄
8
[41]
B
S
6
[152]
1 3 ⁄
8
[35]
Nuts & washers not supplied by
Ashcroft
1 1 ⁄
16
[27]
S
8 1 ⁄
2
˝ LOWER & BACK CONNECTION DIMENSIONS
E F G H K M P S T
9
[229]
2 1 ⁄
8
[54]
5 5 ⁄
8
[16]
5 ⁄
8
[16]
T
5 ⁄
8
[16]
U
3 ⁄
4
[19]
CC LL
1 ⁄
4
-20
1 ⁄
8
- 1 ⁄
2
[3] [13]
Weight
(lbs)
6
Weight
(lbs)
6
3 Mounting studs CC threaded equally spaced on E dia. B.C.
G
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 ® , Plus!
™ and Trust the Shield ® are trademarks of Ashcroft Inc. The following non-Ashcroft trademarks are the property of their respective owners: Monel ® , Teflon ™ . For more information, see Ashcroft Brands & Trademarks
©2022 Ashcroft Inc. 1220_gauge_ds_RevD_11-08-22
4 of 4 ashcroft.com
| 1.800.328.8258 | Contact Us
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