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SPECIFICATIONS
CONSTRUCTION
Valve Housing: ................ Anodized Aluminum Alloy
Spring Housing: ............................ 316 Stainless Steel.
Pressure Assembly Housing: .............. Stainless Steel.
Pressure Assembly: ...............Stainless Steel Bellows.
Springs: ................................................ Stainless Steel.
O-rings: .......................... Fluorocarbon and Neoprene.
Diaphragms and Gasket: .........Neoprene and Buna N
Control Pressure: ... 20 to 60 psi (1.379 to 4.137 bar).
Maximum Control Pressure: .........75 psi (5.171 bar).
Maximum Ambient Temperature: 160° F. (71.1° C.)
Repeatability:.................................... ± 1% of setpoint.
Mounting: ....................................... Panel or Manifold.
Approximate Shipping Weight: .. 2-1/4 lb. (1.02 Kg.)
Control Medium: .............. Air, Natural Gas, Nitrogen
Filtration (Minimum): ............................. 25 microns.
Moisture (Pressure Dewpoint): .......... 15°F. (8.3° C.)
Oil Content (Natural Base): ............................ 5 ppm.
Oil Content (Synthetic Base):.......................... 0 ppm.
Hydrogen Sulfide: ............................................ 0 ppm.
NOTE: These are suggested minimums for control medium
quality. For operation under more adverse conditions, consult
factory.
Reset Differential Range: See graph corresponding to
instrument model numbers.
on Nylon.
less than ambient temperature.
Process and Reset Pressure Characteristics:
Maximum
Process
Model No.
Pressure,
psi (bar)
84370-A1
50 (3.45)
84370-A2
120 (8. 27)
84370-B1
50 (3.45)
84370-B2
120 (8.27)
84370-C1
50 (3.45)
84370-C2
120 (8.27)
CAUTION: DO NOT EXCEED MAXIMUM
TEMP/PRESSURE RATINGS.
2
Minimum
Standard
Process
Reset
Pressure Drop to
Differential,
Manually Reset,
psi (bar)
psi (bar)
2 (.138)
5 (.345)
2 (.138)
5 (.345)
.5 (.034)
1 (.069)
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