Drain valve GURU PC®

for potable waterbrassbronze

The GURU PC® freeze protection valve protects potable water-bearing systems that supply water for bathrooms and kitchenettes on passenger rail cars from freezing when the car heat is turned off for switching locomotives, during layovers, or a power outage. The valve monitors ambient temperatures and will drain the system before freezing temperatures can cause burst pipes and tanks, resulting in expensive and lengthy repairs. Operation The 1″ thermostatic GURU PC® freeze protection valve is installed at the lowest point within the potable water-bearing systems on a passenger rail car to prevent the water from freezing when the car heat is turned off for switching locomotives or even brief layovers. This self-contained freeze protection drain valve monitors ambient temperatures and will automatically drain the system if the air temperature falls to the valve’s set-point, 35°F (1.7°C), preventing burst piping and thousands of dollars in damage. Once the car heat is restored, the valve will modulate closed, allowing for the tank to be refilled before returning to service. Since the valve is completely mechanical, no electrical or air connections are required for the valve to operate. To avoid a delay in refilling the water system and getting the passenger car back into service after a valve activation we recommend using our electric heater assembly. The heater attaches to the thermal actuator on the valve and will warm it up quickly once power is restored to the car. This allows the GURU PC® freeze protection valve to close and the potable water system to be refilled quicker after a drain occurrence.