ASCO Power Technologies Valve Rebuild Kit 310388 for 8221G005

Valve Rebuild Kit 310388

The ASCO Power Technologies Valve Rebuild Kit 310388 supplies a complete set of internal components for servicing compatible valves. It is intended for maintenance technicians and facility managers who need to restore reliable operation to existing hot water or steam valve installations. The kit includes a cap, clip, core tube assembly, flow control, O-rings, piston assembly, seal, springs, support and tube. Instructions are provided to guide the reassembly process.

Model 8221G005 Compatibility

The single specification that determines fit is compatibility with manufacturer model number 8221G005. This kit is engineered specifically for that valve model and also cross-references Grainger part number 3UL37 and the Emerson brand. Verify the valve model on the nameplate before ordering; the kit will not function correctly in other valve bodies or configurations.

UL Listed Service Parts

Components in this kit meet UL Listed standards for use in hot water and steam valve service. The included seals, O-rings and piston assembly are designed to withstand the temperatures and pressures typical of those applications. Normal use does not introduce additional power draw, noise or thermal load beyond the valve's own operating characteristics. The rebuild restores the original sealing and flow performance without changing the system's energy profile.