The GURU PC® freeze protection valve protects potable water-bearing systems on passenger cars when the car heat is turned off during a layover, locomotive switch or power outage. Utilizing our thermostatic technology, this valve monitors ambient temperatures and will automatically drain the system before freezing temperatures can cause burst pipes and tanks, resulting in expensive and lengthy repairs.
- Eliminates costly freeze damage in a passenger car
- High flow design for rapid draining
- Easy installation
- Minimal maintenance required
- NSF 61/372 certified
- Shock & Vibration tested
- Self-operating thermostatic valve
- No electrical or air connections required for valve operation
- Low lead brass/bronze
- Dual port seals
- In-line serviceable
The ¾” thermostatic GURU PC® valve is installed at the lowest point within the potable water-bearing systems in passenger cars to prevent the water from freezing when the car heat is turned off.
This self-operating freeze protection valve monitors ambient temperatures and will automatically drain the passenger cars water system if the air temperature falls to the valve’s set-point, 35°F, ultimately preventing a system freeze up and thousands of dollars in damage.
Once the car heat is restored and the valve warms up it 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. An electric heater assembly is available for quicker refilling of the water tanks.
System Design Notes
Valves are typically installed inside equipment cabinets or between the inner and outer car body. If a valve is to be installed outside or underneath the car, provide proper protection (e.g. skid plate) to avoid damage from impacts of roadside debris.
All car designs should be properly validated and tested.