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.
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.
| Items |
 487-04-88 Guru® DL 2.1 Type-S Standard Plug and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve |
 482-04-88 Guru® DL 2.1 Type-T Tee Body and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve |
 483-04-88 Guru® DL 2.1 Type-FL and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve |
 483-04-88-GX Guru® DL 2.1 Type-FL-GX and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve |
487-04-87 Guru® DL 2.1 Type-S Standard Plug and 40 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve |
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| Description |
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. |
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| Brands | ThermOmegaTech® | |||||||||
| Type | Type-S Standard Plug | Type-T Tee Body | Type-FL | Type-FL-GX | Type-S Standard Plug | |||||
| Cartridge | 481-04-82-CART | 481-04-82-CART | 481-04-82-CART | 481-04-82-CART | 481-04-81V-CART | |||||
| Temperature | 35 ºF | 35 ºF | 35 ºF | 35 ºF | 40 ºF | |||||
| Available Options | GURU® DL 2.1 plugs are available in various configurations, including in a tee or cross body, with different flange styles such as grooved flanges and gasket seals, flat-faced flanges, or a combination of both. | |||||||||
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