Water safety valve GURU PC®

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The GURU PC® valve protects potable water-bearing systems on passenger rail cars from freezing when the car heat is turned off during a layover, locomotive switch, or power outage. Utilizing our thermal actuator technology, this valve monitors ambient temperatures. It will automatically drain the system before freezing temperatures can cause burst pipes and tanks, resulting in expensive and lengthy repairs. Operation The ¾” thermostatic GURU PC® valve is installed at the lowest point within the potable water-bearing system on a passenger rail car to prevent the water from freezing when the car heat is turned off. This self-operating freeze protection valve monitors ambient temperatures. It will automatically drain the passenger car’s water tanks if the outside air temperature falls to the valve’s set-point, 35°F (1.7°C), ultimately preventing a system freeze-up and thousands of dollars in damage. Once power and heat are restored to the rail car, the valve will warm up and modulate closed, allowing the water tanks to be refilled before returning to service. Since the valve is completely mechanical, no electrical or air connections are required to operate it. We recommend using our electric heater assembly to avoid delays in refilling the potable water system and getting the car back into service after a valve activation. The heater attaches to the thermal actuator on the valve and will warm it up quickly once power is restored. This allows the valve to close instantly and the system to be refilled as quickly as possible after a drain occurrence.