Direct OEM Replacement: Replaces HF25CA002 without requiring hardware modifications or complex rewiring

this specific model is a unidirectional pressure transducer configured for a 0 to 5 inch water column range

With a 1/2" NPT external fitting and a design that minimizes chatter and water hammer

meaning once the system hits the high or low cut-out point

Trane VAL8711 TXV 318820-201 Direct OEM Replacement: Replaces HF25CA002The Trane VAL8711 (now replaced by VAL08711) is a heavy duty, 2 ton thermostatic expansion valve specifically engineered for R 22 refrigerant systems. Designed with mechanical fittings including 3 8" inlet and 1 2" outlet connections, this TXV valve ensures precise refrigerant metering across various load conditions, preventing compressor slugging and evaporator flooding. Featuring a 53 49 PSI pressure rating and an external equalizer design, this