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Murphy 25DP-30
The 25DP-30 Differential Pressure Swichgage® is a 2.5" dual-scale dial, diaphragm-actuated differential pressure-indicating gage, with a built in electrical switch. This switch is used for tripping alarms and/or shutting down equipment. The 25DP-30, with a pressure range of 0-30 psi, is intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system. This filter restriction Swichgage® will let you know when to change your filter and maintain peak efficiency.
The gage mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged instrument. On this model, the gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts are grounded through the case and have a self-cleaning motion to ensure electrical continuity
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