Overview Solenoid-operated diaphragm valves provide slow opening and fast closing suitable for controlling natural, LP or manufactured gases. They are normally used on atmospheric boilers, commercial water heaters, and rooftop heaters.

Features V48 for line voltage service; V88 for 24Vac service. Close firmly with diaphragm that is both weight and spring loaded. Two second maximum closing time. Valve closes on power failure; recommended for final shutoff service. Set opening time with various sized bleed orifices or adjustable bleed valve. Use with LP, natural or manufactured gases. Made with cast aluminum in straight-through valve pattern. Valve position indicator available for 1-1/4 in. V48A2227.