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Heavy-Duty Stability: Nickel-chromium coils and corrosion-resistant mounting plates prevent sag and premature failure under high-demand cycles
significantly reducing radial loads on your bearings
Common Questions What is the maximum inlet pressure for this valve
Its high-flow paddle design minimizes pressure drop while providing positive close-off against 60 psi differentials
Lennox 14W77 TXV 30067439-890 Heavy-Duty Stability: Nickel-chromium coils andThe Lennox 14W77 is an OEM thermostatic expansion valve (TXV) engineered for high precision refrigerant metering in residential and light commercial R410A systems. Designed as a direct 100254 02 replacement, this valve features 3 8" x 1 2" ODF connections and is critical for maintaining the balance between liquid and vapor in the evaporator. By accurately regulating the refrigerant flow based on load demand, the 14W77 prevents compressor floodback and
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