Danfoss 034L0046 KVL28 Crankcase Pressure Regulator 1-1/8" Solder ODF

The Danfoss 034L0046 KVL28 is a crankcase pressure regulator designed for refrigeration system suction lines. This valve is installed in the suction line ahead of the compressor to protect the compressor motor against overload during start-up after long standstill periods or after defrost cycles.

Key Features:

• 1-1/8" nominal size with ODF (Copper Tube - Flare Type) solder connections on both inlet and outlet
• Regulation range of 3 to 87 PSIG with factory setting at 29 PSIG
• Flow rating of 9.25 GPM (Cv value)
• Maximum working pressure of 260 PSIG
• Temperature rating from -76°F to 266°F
• One-way flow direction with engraved arrow indicator
• UL listed (US and Canada), RoHS compliant

When properly adjusted, the crankcase pressure regulator prevents compressor suction pressure from rising above its set point, helping prevent refrigeration compressor overload during startup on systems experiencing heavy load conditions such as freezers after defrost cycles. Ideal for commercial refrigeration and transport refrigeration applications.