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Watts RK909RT21/2-3 backflow preventer repair kit in transparent finish

Watts

Watts RK909RT21/2-3 backflow preventer repair kit 21 909

SKU CH-QJQ2-HQVHH

Repair kit for 909 NRS backflow preventers includes check disc cover, diaphragm, lubricant, piston seal, RV disc assembly, sleeve O-ring and upper and lower check stem O-rings

  • ColorTransparent
  • Complete repair kit restores backflow preventer function
  • Includes check disc cover, diaphragm and lubricant for full service
  • Contains piston seal, RV disc assembly and sleeve O-ring
  • Upper and lower check stem O-rings ensure proper sealing
  • Designed for 909 NRS model compatibility

Watts RK909RT21/2-3 repair kit

This Watts RK909RT21/2-3 backflow preventer repair kit is designed for plumbing professionals and facility maintenance teams who service 3/4 909 NRS and 21/2 909 NRS assemblies. It provides the specific internal components required to restore proper function to these specific backflow prevention models.

Kit contents for assembly service

The kit includes a check disc cover, diaphragm, lubricant, piston seal, RV disc assembly, sleeve O-ring, and upper and lower check stem O-rings. These parts fit directly into the compatible 909 NRS bodies, allowing technicians to replace worn seals and moving parts without sourcing individual components separately.

Replaces worn internal seals and discs

This kit replaces deteriorated check discs, diaphragms, piston seals, and O-rings that cause leakage or failed test results in 909 NRS backflow preventers. The jump is worth it when routine testing reveals worn seats or seals, or during scheduled rebuild cycles to maintain code compliance for the assembly.

Highlights

  • Complete repair kit restores backflow preventer function
  • Includes check disc cover, diaphragm and lubricant for full service
  • Contains piston seal, RV disc assembly and sleeve O-ring
  • Upper and lower check stem O-rings ensure proper sealing
  • Designed for 909 NRS model compatibility

Specifications

ColorTransparent
BrandWATTS

Questions about this item

How long will the rubber discs and O-rings last under continuous water pressure?

The kit includes check disc covers, diaphragms and O-rings made for the 909 NRS; service life depends on water quality and pressure cycles, so inspect annually and replace at first sign of wear.

Does the valve body get hot or noisy when the preventer runs all day?

This is a static repair kit with no moving parts or electrical components, so it produces no heat or noise during normal backflow preventer operation.

Which existing valve body does this kit fit?

The kit is designed for Watts 3/4 inch 909 NRS backflow preventers with manufacturer number 21/2 909 NRS.

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