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  • Guru® DL 2.1 CH and CHS Locomotive Freeze Protection Thermostatic Valves
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.
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Item Name

Type

Cartridge

Temperature

N/A Guru® DL 2.1 Type-CH and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve N/A Type-CH N/A 481-04-82-CART N/A 35 ºF
N/A Guru® DL 2.1 Type-CHS and 35 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve N/A Type-CHS N/A 481-04-82-CART N/A 35 ºF
N/A Guru® DL 2.1 Type-CH and 40 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve N/A Type-CH N/A 481-04-81V-CART N/A 40 ºF
N/A Guru® DL 2.1 Type-CHS and 40 Degree Fahrenheit (ºF) Temperature Locomotive Freeze Protection Thermostatic Valve N/A Type-CHS N/A 481-04-81V-CART N/A 40 ºF
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