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Switch – Pressure, Dry Systems

Potter Flow

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- Pressure actuated switches designed primarily to detect a 10 PSI increase and/or decrease from normal system pressure in automatic fire sprinkler systems
- Typical applications are air pressure supervision in dry pipe systems and pressure supervision of pressure tanks, air supply or water supply
- PS40-1A: Operates on decrease at 30PSI
PS40-2A: Operates on increase at 50 PSI, and on decrease at 30 PSI
Pressure Range: 10-175 PSI

Part#Potter#Description
407140 PS40-1A Single
407140 - 2A PS40-2A Double

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