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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 | DL2.1 TYPE CARTRIDGE |
| Description | DL2.1 TYPE CARTRIDGE |
| Opening Temperature | 40°F (4.4°C) |
| Closing Temperature | 50°F (10°C) |
| Body Material | Stainless Steel |
| Release Temperature | 40°F |
| Isometric View | Download |
| Front View | Download |
| Top View | Download |
| Side View | Download |
Disclaimer
All drawings and 3D models are provided for reference only and are not controlled documents. Files may not reflect current revisions or design intent and shall not be used for manufacturing, inspection, or certification. Only officially released ThermOmegaTech drawings and documents issued through the company’s controlled document system are considered authoritative.
All drawings and 3D models are provided for reference only and are not controlled documents. Files may not reflect current revisions or design intent and shall not be used for manufacturing, inspection, or certification. Only officially released ThermOmegaTech drawings and documents issued through the company’s controlled document system are considered authoritative.
