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Environmental & Combustion Controls
C437E2010
Pressure Switch, Manual Reset, 1/2 psi to 5 psi

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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 psi to 5 psi
Application Safety shutoff, pressure control, and differential-pressure control.
Operating Range (psi) 1/2 to 5 psi
Operating Range (kPa) 3.0 to 35 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 3 7/16 in. deep