Constructed from heavy-gauge aluminized steel for enhanced heat transfer and oxidation resistance

Engineered from corrosion-resistant materials

it ensures seamless compatibility without the need for additional housing modifications

R-410A Optimized: Specifically calibrated for high-pressure systems to ensure long-term mechanical reliability

including high-capacity 48HCDD

Lochinvar & A.O. Smith 100171947 Valve 320735-701 Constructed from heavy-gauge aluminized steelThe Lochinvar & A. O. Smith 100171947 Valve, often identified by its legacy SKU VAL30034, is a critical gas valve assembly kit engineered specifically for high efficiency hydronic systems. This natural gas valve is a direct OEM replacement for the Knight WH155 wall mount boiler, ensuring the precise fuel to air ratio required for optimal combustion control. As a veteran grade gas valve kit, it includes the venturi and necessary gaskets to maintain a