Specifications - Robertshaw 84374 Series Quick Start Manual

SPECIFICATIONS

Valve Housing, Housing Plate and Cover: .........Anodized
Spring Housing: ..................................... 316 Stainless Steel
Springs: ......................................................... Stainless Steel
O-Rings: ...................................Fluorocarbon and Neoprene
Diaphragms and Gasket: ........................Buna-N on Nylon
Control Pressure: .................. 138 to 414 kPa (20 to 60 psi)
Maximum Control Pressure: .................... 172 kPa (25 psi)
Maximum Ambient Temperature: ............71° C. (160° F.)
Repeatability: ............................................ ± 1 % of setpoint
Approximate Shipping Weight: ............ 1.4 Kg. (3.16 lbs.)
Control Medium: .............. Air, Natural Gas, Nitrogen, CO
Filtration (Minimum): ........................................25 microns
Moisture (Pressure Dew Point): .....8° C. (15° F.) less than
Oil Content (Natural Base): ...................................... 5 ppm
Oil Content (Synthetic Base): ................................... 0 ppm
NOTE: These are suggested minimums for control
medium quality. For operation under more
adverse conditions, consult factory.
CAUTION: DO NOT EXCEED MAXIMUM
TEMPERATURE/PRESSURE RATINGS.
Process and Reset Pressure Characteristics:
Maximum
Process
Model No.
Pressure, kPa
(psi)
84374-Al 172 (25)
84372-A2 172 (25)
84374-B1 172 (25)
84374-B2 172 (25)
84374-Cl 172 (25)
84374-C2 172 (25)
Aluminum Alloy
ambient temperature.
Standard Minimum Process
Reset Pressure Drop to
Differential Manually Reset,
kPa (psi) kPa (psi)
5 (0.7)
10 (1.5)
5 (0.7)
10 (1.5)
2 (.3)
4 (.6)
Reset Differential Range: See graph corresponding to
instrument model numbers.
2
2