the kit includes water glass

they require manual calibration

5-inch Maxon SMA gas valve typically supports a maximum operating pressure differential of up to 40 PSIG

This kit provides the high-tensile components required to rebuild the internal pressure chambers of compatible Johnson Controls diaphragm-actuated valves and regulators

Lochinvar & A.O. Smith 100111891 Gas Valve 323269-701 the kit includes water glassThe Lochinvar & A. O. Smith 100111891 Gas Valve is a critical OEM replacement part engineered for high efficiency natural gas commercial water heaters and boilers. This K Series gas control valve is a direct replacement for obsolete part number 9007295005 and is essential for maintaining precise manifold pressure and air gas mixtures within the combustion chamber. Designed for compatibility with the Lochinvar BTH series (including BTH 400 and BTH 500