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Watts backflow preventer repair kit in plastic bag

Watts

Watts RK 009 RT Backflow Preventer Repair Kit

SKU CH-JEY9-YAY7X

Repair kit for Watts 009QT backflow preventers includes disc assemblies, O-rings and diaphragm

  • TypeOther
  • Restores backflow protection with complete rebuild kit
  • Fits Watts No. 009QT backflow preventer assemblies
  • Includes two disc assemblies for full valve service
  • Contains all essential O-rings and diaphragm
  • Nine replacement components in a single package

What this kit restores

The Watts RK 009 RT repair kit replaces the internal wear parts of a Watts No. 009QT backflow preventer. It contains two disc assemblies, two RV seat O-rings, two seat O-rings, a cover O-ring, a diaphragm and stem O-rings. Plumbers and facility managers use it to return the device to reliable operation after routine service intervals.

Thermals noise and power draw

This is a passive mechanical kit, so it generates no heat, produces no noise and draws no electrical power. The components are elastomer and metal seats that seal under line pressure. Normal use simply requires the system pressure the preventer is rated for.

When the jump is worth it

Install the kit when the preventer fails a field test, shows leakage at the relief port or reaches the scheduled rebuild interval. It restores sealing performance without replacing the entire valve body. The kit does not address cracked housings, corroded seats or damaged threads, so inspect the body before committing to a rebuild.

Highlights

  • Restores backflow protection with complete rebuild kit
  • Fits Watts No. 009QT backflow preventer assemblies
  • Includes two disc assemblies for full valve service
  • Contains all essential O-rings and diaphragm
  • Nine replacement components in a single package

Specifications

BrandWATTS
TypeOther

Questions about this item

How do I install the Watts RK 009 RT repair kit, and which step do people usually miss?

Shut off the water supply and relieve pressure before disassembly. The step most often missed is lubricating the 9 included O-rings and the diaphragm with food-grade silicone grease so they seat without twisting.

What parts of the Watts RK 009 RT kit will need replacement again during future maintenance?

The rubber components — 2 disc assemblies, 2 RV seat O-rings, 2 seat O-rings, 1 cover O-ring, 1 diaphragm, and stem O-rings — are wear items that degrade with chlorinated water and should be inspected annually.

What is the first limit that appears when the Watts RK 009 RT kit is under sustained backflow pressure?

The diaphragm and O-rings reach their elastic limit first; continuous pressure differential causes permanent set, leading to slow leakage past the seat before any metal component yields.

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