Weil McLain 511-044-505 Gas Valve Freon provided the inlet pressure does

provided the inlet pressure does not exceed the 5 PSI rating

This is the casting only

Replacing a brittle or carbon-fouled Lochinvar ignitor restores rapid flame rectification and ensures consistent heating performance

the internal element can be replaced using a K-SA-4 kit without removing the body from the line

Weil McLain 511-044-505 Gas Valve Freon provided the inlet pressure doesThe Weil McLain 511 044 505 gas valve is a critical service component engineered for high efficiency hydronic systems. This 24V redundant gas valve is factory set for natural gas applications with a 3. 5" WC manifold pressure, ensuring precise fuel regulation for consistent combustion. Built for durability in commercial and residential settings, it features a 3 4" x 1" NPT connection, making it a direct replacement for specific boiler configurations.