Wilkins RK34-350V | Complete Pressure Vessel Repair Kit for 350/350XL Series
Wilkins RK34-350V | Complete Pressure Vessel Repair Kit for 350/350XL Series is backordered and will ship as soon as it is back in stock.
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Wilkins RK34-350V | Complete Pressure Vessel Repair Kit for 350/350...
The Zurn Wilkins RK34-350V Repair Kit is a complete internal repair solution for 3/4" Model 350 and 350XL Double Check Backflow Preventers. This kit restores performance by replacing all major internal components, ensuring continued protection against backpressure and backsiphonage in potable water systems.
Key Specifications:
- Design: Complete vessel repair kit for 3/4" Zurn Wilkins 350XL and 350 Double Check Backflow Preventers
- Compatibility: Fits 3/4" assemblies including Zurn Wilkins 3/4" 350 Double Check Valve Assembly and Wilkins 3/4" 350XL Double Check Valve Assembly
- Components Included: Pressure vessel, #1 and #2 seats with O-rings, two poppets, two springs, two sleeves, housing inlet/outlet O-rings, vessel screws, test cocks, and test cock cap plugs
- Construction: Matches parent valve materials — bronze, reinforced nylon, stainless steel, and FDA-approved elastomers
- Standards Compliance: ASSE® 1015, CSA® B64.5, AWWA C510; PROP65 warning applies
Features & Benefits:
- Cost-Effective Repairs: Extends valve life without full replacement
- Quick Installation: Drop-in kit designed for field service
- Reliable Protection: Maintains backflow prevention against polluted water
- Approved Performance: Complies with industry standards for double check assemblies
- Warranty: 1-year limited warranty from Zurn Wilkins
What's Included:
- Complete pressure vessel assembly
- #1 and #2 seats with O-rings
- Two poppets, springs, and sleeves
- Housing inlet/outlet O-rings
- Four vessel screws
- Two test cocks and two test cock cap plugs
FAQ
Q: Which valves does the RK34-350V fit?
A: It is compatible with 3/4" Zurn Wilkins Model 350 and 350XL Double Check Backflow Preventers, including the 350 and 350XL assemblies.
Q: Does this kit include ball valves?
A: No. Ball valves are sold separately (e.g., 34-850XL). This kit focuses on internal vessel and check components.
Q: Is this kit lead-free?
A: Yes. The parent valve body is bronze and elastomers are FDA-approved; the kit maintains compliance with NSF/ANSI standards.
Q: How often should the kit be used?
A: Typically during scheduled backflow preventer maintenance or when internal leakage/failure is detected.
Q: Who should install this kit?
A: Installation should be performed by qualified personnel in accordance with local plumbing codes.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
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- Turn off the water supply and relieve pressure in the line before starting.
- Remove the backflow preventer cover to access the internal parts.
- Take out the old pressure vessel, seats, springs, and poppets as needed.
- Install the new pressure vessel and internal components from the RK34‑350V kit.
- Replace all O‑rings and seals included in the kit to ensure a proper fit.
- Reassemble the housing and tighten screws securely.
- Turn the water supply back on slowly and check for leaks.
- For detailed steps, refer to the installation manual provided in the package or contact a licensed plumber.
- Inspect the backflow preventer regularly for leaks or reduced performance.
- Check the test cocks and regulator to confirm proper operation.
- Clean or replace parts if mineral deposits or wear are found.
- Always use genuine Zurn Wilkins repair kits for replacements.
- For service or repairs, consult the manual or a licensed technician.
