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Gas Type Compatibility: Engineered for liquid propane (LPG) applications in Williams Top-Vent and Direct-Vent gravity furnaces
For applications requiring different timing to prevent pump cavitation or specific surge patterns
Enhanced Interface Reliability: Replaces 300042639 controls to resolve unresponsive membrane switches and display errors
making it a critical component for maintaining evaporator efficiency in high-load applications
Durable Construction: Built to withstand commercial-grade pressures and frequent cycling
Armstrong Fluid Technology 571110LF-343 Valve 320788-704 Gas Type Compatibility: Engineered forThe Armstrong Fluid Technology 571110LF 343 is a high performance 1 1 4" NPT Circuit Balancing Valve designed to ensure precision flow regulation within hydronic systems. Specifically engineered for HVAC and plumbing applications, this brass body valve features EPDM elastomers and a multi turn Y pattern globe style design that significantly reduces flow turbulence while maintaining an accuracy of + 5%. With a robust 300 psi maximum working pressure