The Wilkins RK34‑NR3XL is a complete standard repair kit designed for servicing 3/4" NR3XL Pressure Reducing Valves. Manufactured with lead‑free compliant bronze body materials, this OEM kit restores valve performance, ensures safe potable water applications in your water supply system, and extends the operational life of the pressure reducing valve. The kit includes essential components such as the diaphragm assembly, seal ring, and other critical parts to maintain optimal pressure setting.

Key Specifications:

• Size: 3/4" valve repair kit (pipe size compatible)
• Kit Type: Complete OEM standard repair kit with factory set components
• Compliance: Lead‑Free certified for potable water use
• Compatibility: Designed for Zurn Wilkins NR3XL 3/4" Pressure Reducing Valves
• Components Included: Union gasket, cartridge assembly with diaphragm, spring, spring disc, friction ring, locknut, adjustment bolt, upper o-ring, lower o-ring, seal ring, and retaining bolt

Features & Benefits:

• Complete Kit Solution: Provides all essential plumbing system components for comprehensive valve servicing, eliminating the need for multiple part orders. Includes installation instructions and repair instructions for proper assembly
• Lead‑Free Compliance: Meets NSF/ANSI lead‑free standards for safe potable water applications and fire sprinkler system installations
• OEM Compatibility: Guaranteed fit and performance with Wilkins NR3XL 3/4" valves. Precision machined surfaces ensure proper seating face contact and prevent external leakage
• Extended Valve Life: Restores valve performance by maintaining proper reduced static pressure and reduced flowing pressure, reduces downtime, and extends service life. Prevents material degradation and maintains outlet set pressure even with varying incoming supply pressure

Other Related Variants:

• RK12‑NR3XL: 1/2" version
• RK1‑NR3XL: 1" version
• RK114‑NR3XL: 1‑1/4" version
• RK112‑NR3XL: 1‑1/2" version
• RK2‑NR3XL: 2" version

FAQ

Q: What Components Are Included In The RK34‑NR3XL Repair Kit?
A: The kit includes a union gasket, cartridge assembly with diaphragm, spring, spring disc, friction ring, locknut, retaining bolt, adjustment bolt, upper o-ring, lower o-ring, and seal ring for complete valve servicing. Apply silicone grease to o-rings during installation per the installation instructions.

Q: Is This Repair Kit Compatible With Other Valve Sizes?
A: No. This kit is specifically designed for 3/4" NR3XL valves. Other pipe size valves require their corresponding repair kits (e.g., RK12‑NR3XL for 1/2", rk1-nr3xl for 1", or rk114-nr3xl for 1-1/4").

Q: Does This Repair Kit Meet Lead‑Free Requirements?
A: Yes. All components including the bronze body materials are manufactured to meet lead‑free compliance standards for safe potable water applications, expansion tank systems, and thermal expansion protection.

Q: How Often Should The Valve Be Serviced With This Kit?
A: Annual visual inspection and maintenance are recommended. Use the repair kit whenever internal components show wear, external leakage, pressure creep, or material degradation. Install a pressure gauge and water meter for monitoring. Check the seating face and machined surfaces during troubleshooting.

Q: Can I Install The RK34‑NR3XL Myself?
A: Installation should be performed by a qualified licensed plumber. Proper tools, pressure testing, and following repair instructions are required to ensure safe operation. Always close the upstream shutoff valve and shut-off valve before servicing. Verify proper direction of flow and outlet set pressure after installation to ensure downstream fixture and fixture outlets receive correct reduced flowing pressure.

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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