Magnum GURU

Model: Magnum Guru Type-T 35°F
Model: Magnum Guru Type-T 40°F

Click here for Magnum GURU product sheet

Click Here for GURU Cap color table

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Standard 35°F or 40°F  setpoint temperature.

• Drains twice as fast as the standard GURU Plug
• Will not trip or dump while locomotive is running
• Straight SAE threads and O-ring seals provide for easy field maintenance and testing
• Easy installation
• Completely mechanical - No electrical or air connections
• Not affected by air flow or air temperature surrounding valve - releases only when cooling water reaches setpoint
• Easy system refill
• Models available to convert existing freeze protection
• Slotted actuator feature prevents accidental dumps when refilling cooling system with cold water.
• Unit automatically rearms after filling and reheating

Model Operation

The Magnum GURU Plug is a higher discharge capacity version of the standard GURU Plug. The Magnum GURU Plug is a self-operating thermostatic drain valve that responds to engine coolant temperature and will pop open and drain when coolant reaches the setpoint (35°F or 40°F). This provides almost a full 1.2 inch bore to rapidly drain a locomotive before freeze damage can occur. Resetting and rearming the Magnum GURU Plug is easily accomplished by simply reheating the cartridge and utilizing the slotted actuator feature (AKA “penny pincher”). This feature prevents the GURU Plug from triggering open again while refilling the cooling system with cold water. The unique check valve built into the tee fitting makes it possible to easily replace the entire Magnum GURU Plug (hex body and cartridge assembly) without draining the cooling system.

Design Features

• Actuator sensing surface is the only wetted part
• Design excludes cooling water chemicals and other debris from moving parts
• Long service life: All moving parts are stainless steel
• Plug has SAE threads and O-ring seals for easy field maintenance and testing
• Available in 1-1/4" NPT tee and flanged tee body styles
• Paint mask minimizes accidental paint-ins
• Knob on cartridge for easy installation and removal even in awkward locations