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The Williams Controls WM778 Series 1/4" NPT port 150 psi Pressure Protection Valve is designed to protect auxiliary systems supplied off a primary system and will automatically close if the pressure drops below 70 psi. This valve is designed for maximum operating pressure of 150 psi and has an operating temperature range of -40 °F to 180 °F. It is a reliable and durable valve that is perfect for protecting auxiliary systems from overpressure.
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Normally closed valve until a pressure of 70 psi is reached
Maximum operating pressure 150 psi
Pressure protection valves often used when an auxiliary system is supplied off a primary system
Valve will automatically close if pressure drops below 70 psi in compliance
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