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Environmental & Combustion Controls
C437E2036
Pressure Switch, Manual Reset, 1/2 in. wc to 5 1/2 in. wc

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Overview
Pressure or differential pressure limit controls for industrial gas systems.

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Features

• Use C437 for SPST (non-mercury) switching.
• Models intended for lockout applications must be manually reset before resuming operation.
• Compensate for momentary surges in gas pressure with a restrictive orifice in inlet pressure channel on the models with pressure range of 1 to 26 in. wc (0.25 to 6.5 kPa).
• Impede tampering and provide dust-resistant operation with enclosed setting.
• Increase strength of control diaphragm with Buna-N fiber-reinforced material.
• Two Buna-N fiber-reinforced seal-off diaphragms for added reliability.
• Clear glass cover allows observation of interior mechanism to aid in setting and checkout.
Product Specifications  Back To Top
Description Pressure Switch, Manual Reset, 1/2 in. wc to 5 1/2 in. wc
Application Safety shutoff, pressure control, and differential-pressure control.
Operating Range (psi) 0.5 to 5.5 in. wc
Operating Range (kPa) 0.1 to 1.4 kPa
Switch Operation Manual Reset
Switching Action SPST, Break on Fall, non mercury
Sensor Element BUNA N Diaphragm
Materials (Case) Die-cast aluminum
Pipe Connections, Main or High Pressure 1/2 in. NPT internal thread
Pipe Connections, Vent or Low pressure 1/8 in. NPT internal thread
Dimensions (in.) 7 3/4 in. high x 6 1/4 in. wide x