We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
ASCO valve rebuild kit with cap, clip, core tube, flow control, O-rings, piston, seal, springs, support, tube

ASCO Power Technologies

ASCO Power Technologies Valve Rebuild Kit 310388 for 8221G005

SKU CH-N12T-G1BRW

Valve rebuild kit restores ASCO 8221G005 hot water and steam valves with cap, clip, core tube, flow control, O-rings, piston, seal, springs, support and tube

  • Complete valve restoration with all internal components included
  • UL Listed for hot water and steam service reliability
  • Exact fit for Emerson 8221G005 and Grainger 3UL37
  • Step-by-step instructions simplify professional installation
  • Durable O-rings, springs and seals prevent future leaks

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.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $199.99
Pricier than about 86% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameASCO
Product typeOther

Questions about this item

What does the kit part number 310388 cover when installed in a valve?

Kit 310388 supplies the cap, clip, core tube assembly, flow control, O-rings, piston assembly, seal, springs, support and tube needed to rebuild the valve.

Which standard is the kit listed under for hot water and steam service?

The kit is UL Listed for use with hot water and steam valves.

What manufacturer model must the valve carry for this kit to fit?

The kit fits valves marked with manufacturer model number 8221G005.

More in Bath Accessories & Soap Dispensers

Similar items