Page 1
Data Sheet
1209 4½˝ SS Process Gauge
FEATURES
Solid front case design with full pressure relief back
4½˝ Dial size
Accuracy: ±0.50% of span (ASME B40.100 Grade 2A)
316L stainless steel case and ring
Patented PLUS!
™
Performance
Dampens vibration, shock and pulsation effects
TYPICAL USES
Oil & Gas Industry
Upstream: Onshore/offshore production
Midstream: Transport, storage and natural
gas compression
Downstream: Refineries and petrochemical
industries
Chemical Industry
Injection Molding Equipment
Power Plants
Conventional power plants
Flue gas desulfurization plants
Other Industries
Waste incineration plants
Seawater desalination plants
Steel mills
Cement plants
TM
1209
41⁄2˝ Dial size
KEY BENEFITS
• Full pressure relief back for safety
• Socket welded to case for superior leak integrity
SPECIFICATIONS
Accuracy: ±0.5% of span (ASME B40.100 Grade 2A)
Dial Size: 4½˝
Range: Vacuum, compound to 20,000 PSI
Process Connection:
1⁄4 NPT Male, 1⁄2 NPT Male
Case Style: Solid front with full pressure relief back
Movement: 304 stainless steel, adjustable
Window Material: Acrylic (STD.), safety glass (OPT.)
Pointer: Micrometer adjustable, aluminum
Weather Protection: IP65 hermetically sealed
Mounting: Stem, surface (STD.), flush, pipe, remote (OPT.)
Dampening:
Liquid fill,
™
PLUS!
Performance, throttle screw,
dampeners, capillary, diaphragm seals and snubbers
WETTED COMPONENTS
Model
1209
Bourdon Tube Process Connection Joints
316L SS 316L SS Welded
NON-WETTED COMPONENTS
Model
1209
Case Ring Back Cover
316L SS 316L SS 316L SS
MIN./MAX. TEMPERATURE LIMITS
Ambient Process Storage
Dry
PLUS
Glycerin
Silicone
Halocarbon®-40 to 150°F (-40 to 66°C) -40 to 150°F (-40 to 66°C) -40 to150°F (-40 to 66°C)
Note: Other than discoloration of the dial and hardening of the gasketing that may occur as ambient or process temperatures exceeds 150°F, non-liquid-filled gauges with standard glass windows, can withstand continuous operating temperatures up to 250°F (121°C). Liquid-filled gauges
can withstand 200°F (93°C) but glycerin fill and acrylic window will tend to yellow. Accuracy at
temperatures above or below the reference ambient temperature of 68°F (20°C) will be affected
by approximately 0.4% per 25°F. Gauges with welded joints will withstand 750°F (400°C), 450°F
(232°C) with silver brazed joints for short times without rupture, although other parts of the gauge
will be destroyed and calibration will be lost. For continuous use and for process or ambient temperatures above 250°F (121°C), a diaphragm seal or capillary or siphon is recommended.
-40 to 200°F (-40 to 93°C) -40 to 200°F (-40 to 93°C) -40 to 200°F (-40 to 93°C)
™
-40 to 200°F (-40 to 93°C) -40 to 200°F (-40 to 93°C) -40 to 200°F (-40 to 93°C)
20 to 150°F (-7 to 66°C) 20 to 150°F (-7 to 66°C) 20 to 150°F (-7 to 66°C)
-40 to 150°F (-40 to 66°C) -40 to 150°F (-40 to 66°C) -40 to 150°F (-40 to 66°C)
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. 1209_gauge_ds _RevE_Ltr_03-19
ashcroft.com
info@ashcroft.com
1.800.328.8258
1 of 3
Page 2
Data Sheet
1209 4½˝ SS Process Gauge
ORDERING CODE Example:
Dial Size/Model Code
451209 - 41⁄2˝ SS, solid front process gauge per ASME B40.100 451209
System (tube and process connection)
S - SS system S
Case Fill
D - Dry Case D
L - Liquid filled case, glycerin (STD.)
Process Connection Sizes
02 - 1⁄4 NPT Male (up to 20,000 psi)
04 - 1⁄2 NPT Male (up to 20,000 psi) 04
Process Connection Location
L - Lower connection only L
Range (coding examples only, see range table on next page for all standard ranges)
Single Scales
15# - 15 psi 15#
1KSC - 1 kg/cm
100KP - 100 kPa
Options (if choosing an option(s) must include an “X”) -X_ _
EP - Maximum pointer, adjustable
GV - Silicone case fill
GX - Halocarbon case fill
LL -
PLUS!
NH - SS tag wired to case
OS - Overload stop
SG - Safety glass
VS - Underload stop
C3 - Material test report to EN 10204.3.1
C4 - Individual calibration chart (in accordance with ASME B40.100:2013. Accuracy traceable to NIST)
D3 - DuraVis™ Retroreflective Dial (4½˝ and dry case only)
6B - Cleaned for oxygen service
2
™
Performance
4512 09
S D 04 L 15# -XLL
LL
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. 1209_gauge_ds _RevE_Ltr_03-19
ashcroft.com
info@ashcroft.com
1.800.328.8258
2 of 3
Page 3
Data Sheet
2.52 [64]
0.74 [15.8]
1209 4½˝ SS Process Gauge
1209 STANDARD RANGES
psi bar kPa mPa kg/cm
30IMV N1BR N100KP N1MP N1KG
Vacuum
– N1/0.6BR N100/60KP 0.1/.06MP N1/0.6KG
V/15# – – – –
– N1/1.5BR N100/150KP N0.1/0.15MP N1/1.5KG
V/30# – – – –
– N1/3BR N100/300KP N0.1/0.3MP N1/3KG
V/60# – – – –
Compound
– N1/5BR N100/500KP N0.1/.5MP N1/5KG
V/100# – – – –
– N1/9BR N100/900KP N0.1/0.9MP N1/9KG
15# 1BR 100KP 0.1MP 1KG
20# – – – –
– 1.6BR 160KP 0.16MP 1.6KG
30# – – – –
– 2.5BR 250KP 0.25MP 2.5KG
60# 4BR 400KP 0.4MP 4KG
– 6BR 600KP 0.6MP 6KG
100# – – – –
120# – – – –
– 10BR 1000KP 1MP 10KG
160# – – – –
200# – – – –
– 16BR 1600KP 1.6MP 16KG
300# – – – –
– 25BR 2500KP 2.5MP 25KG
400# – – – –
500# – – – –
600# 40BR 4000KP 4MP 40KG
800# – – – –
Positive Pressure
– 60BR 6000KP 6MP 60KG
1000# – – – –
1500# 100BR 10000KP 10MP 100KG
2000# – – – –
– 160BR 16000KP 16MP 160KG
3000# – – – –
– 250BR 25000KP 25MP 250KG
4000# – – – –
5000# – – – –
6000# 400BR 40000KP 40MP 400KG
8000# – – – –
– 600BR 60000KP 60MP 600KG
10000# – – – –
15000# 1000BR 100000KP 100MP 1000KG
20000# 1600BR - 160MP 1600KG
DIMENSIONS in [ ] are millimeters
2
For reference only, consult Ashcroft for specific dimensional drawings
4.88 [124]
Ø
6.30 [160]
1.34 [34]
½˝ NPT THREAD ACCD.
ANSI B1.20.1
4.96 [126]
Ø
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. 1209_gauge_ds _RevE_Ltr_03-19
ashcroft.com
info@ashcroft.com
1.800.328.8258
3 of 3
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