The Guru® DL 2.1 thermostatic valves respond to engine coolant temperatures. When the locomotive is shut down and the cooling water temperature drops to the valve's set point, (Standard offerings: 35ºF or 40ºF) the valve cartridges will release, draining the locomotive cooling system before any freeze damage occurs.
After a drain occurrence, the valve cartridges can be heated and reinserted back into the hex nut to refill the water tank and promptly return the locomotive to service.
The Magnum Guru® plugs operate the same way as the standard Guru® DL 2.1; however, they provide a higher discharge capacity to reduce down-time by up to 50%.
Magnum Guru®'s have straight SAE threads (Guru® DL 2.1 plugs have NPT) and O-ring seals to provide easy field maintenance and testing.
The Guru® DL2.1 CH and CHS Plugs are drain valves that are easily retrofitted into water-cooled air compressor heads that release only when cooling water drops to the set-point temperature.
Both CH and CHS are available with an anti-tampering cap to eliminate tampering with the resetting stem.
The clip at the end of the cable is inserted into the slot of the Guru® plug's resetting stem after warming the nose of the cartridge to keep the plug from "popping" as cold water is being added into the locomotive's cooling system.
This tool works in conjunction with the anti-tamper domed cap by allowing insertion of the key into the cartridge after warming its nose to keep it from "popping". The plug's resetting stem is not accessible, eliminating the ability to leave a penny or washer inserted.
The Compressor Head Cleaning Tool is designed to quickly clean and flush out debris from the water-cooled compressor head on the locomotive. The CHCT allows insertion of the cleaning nozzle into the same flanged body as the Guru® Plug Type CH or CHS.
To use the CHCT, a pressurized water hose must be connected to the cleaning tool.
Guru® PC thermostatic valves continuously monitor ambient temperatures and will automatically drain the system before freeze damage can occur. Once the car heat is restored, the valve will modulate closed, allowing for the tank to be refilled before returning to service.
The Guru® PC complies with fire safety requirements under Title 49, Chapter II, Part 238.103, and is NSF 61/372 Certified.
To avoid a delay in getting the car back into service after a valve activation, ThermOmegaTech® recommends using our electric heater assembly in conjunction with the valve.
The heater assembly attaches to the thermal actuator to quickly heat up and close the valve once power is restored. This allows for the water system to be refilled and the car returned to service promptly.
