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The GURU® CH & CHS may be thought of as an automatic freeze-out plug with one important difference: The stainless steel GURU® Cartridge releases itself from its body at a pre-set water temperature (35°F or 40°F), rather than being forced out by the tremendous pressure of expanding ice. This provides almost a full one inch bore to rapidly drain the typical compressor before damage can occur. Resetting and rearming the GURU® Plug is easily accomplished by simply reheating the cartridge and utilizing our GURU® Flag and Clip tool with slotted actuator feature. This feature prevents the GURU® Plug from triggering open again while refilling the cooling system with cold water.
Both are used for water cooled air compressor head freeze protection. The GURU® CHS adapts to Gardner Denver’s compressor set cooling systems. Most common on EMD’s SD70 locomotives.
- Thermal actuator sensing surface is the only wetted part
- Easily retrofits into water-cooled air compressor heads
- Flanged and 2” NPT threaded styles
- All moving parts are stainless steel - long service life
- Design excludes cooling water chemicals and other debris from moving parts
- Paint mask minimizes accidental paint-ins
- Knob on cartridge for easy installation and removal even in awkward locations
- Choice of release temperatures: 35°F or 40°F
- Will not trip or dump while locomotive is running
- Fully automatic - it never forgets to activate freeze protection
- Completely mechanical - No electrical or air connections
- Not affected by air flow or air temperature surrounding valve - releases only when cooling water reaches set-point
- Rapid draining
- Easy system refill
- Easy maintenance and field testability
- Slotted actuator feature prevents nuisance dumps when refilling cooling system with cold water
- Unit automatically rearms after filling and reheating
- Optional domed anti tamper cap eliminates ability to tamper with the valve resetting stem
| Series | ANTI-TAMPERING ASSEMBLY, WITH STROBE LIGHT |
| Description | ANTI-TAMPERING ASSEMBLY WITH STROBE LIGHT |
| Isometric View | Download |
| Front View | Download |
| Top View | Download |
| Side View | Download |
