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making it a rugged choice for AC condenser fan motor replacement during critical service calls
Optimized Performance: Restores factory-standard solenoid valve operation
Anti-Stick Performance: The PTFE-faced soft seating prevents the valve from sticking during long periods of inactivity
preventing vibration-induced fatigue
Standardized Flow Control: The 1/2" NPT ports and matching 1/2" orifice provide a balanced Cv for efficient fluid transfer
Mueller A17921 Manifold 319825-402 making it a rugged choiceThe Mueller A17921 ReliefMaster is a heavy duty change over manifold engineered for high demand industrial and commercial refrigeration applications. This HVACR manifold features a 1 2" NPTFE (National Pipe Thread Fuel Extended) inlet and 1 2" NPTFI (National Pipe Thread Fuel Injection) outlets, providing a secure, leak proof transition for dual relief valve setups. With a design pressure (MAP) of 700 psig and a broad operating temperature range of