The Wilkins 34-600XLHR is a water pressure reducing valve with integral by-pass check valve and strainer, designed for residential and commercial potable water systems requiring reliable pressure control and thermal expansion protection.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA
• Connection Type: Single Union, FNPT

Other Related Variants:

• 1/2-600XLHR: 1/2 Inch size model
• 1-600XLHR: 1 Inch size model
• 1 1/4-600XLHR: 1 1/4 Inches size model
• 1 1/2-600XLHR: 1 1/2 Inches size model
• 2-600XLHR: 2 Inches size model

Materials:

• Main valve body: Low Lead Cast Bronze (ASTM B 584)
• Access covers: Low Lead Cast Bronze/Brass (ASTM B 584)
• Fasteners: Stainless Steel, 300 Series
• Stem & plunger: Low Lead Cast Bronze/Brass (ASTM B 584)
• Elastomers: Buna Nitrile (FDA Approved), EPDM (FDA Approved)
• Strainer screen: Stainless Steel, 300 Series
• Seat: Stainless Steel, 300 Series
• Cap gaskets: Natural Vulcanized Fibre, Acetal (Delrin)

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted in accordance with the latest edition of the Uniform Plumbing Code. The Model 600XL may be installed in any position. If installed in a pit, vault or inside application, specify the "SC" sealed cage option. Multiple installations are recommend for wide demand variations or where the desired pressure reduction is more than 4 to 1 (i.e.: 200 psi inlet reduced to 50 psi outlet). Anytime a reducing valve is adjusted, a pressure gauge must be used downstream to verify correct pressure setting. Do not bottom adjustment bolt on bell housing.

Standards Compliance:

ASSE Listed 1003; IAPMO Listed; CSA Certified; City of Los Angeles Approved; NSF/ANSI/CAN 61

Features & Benefits:

• Thermal Expansion Protection: The Zurn 34-600XLHR features direct acting integral by-pass design that prevents buildup of excessive system pressure caused by thermal expansion.
• Balanced Piston Design: Enables smooth and responsive reaction to changes in system flow demand while providing protection from inlet pressure changes.
• Integrated Strainer: Built-in 20 mesh strainer screen makes the Zurn 34-600XLHR most suitable for systems requiring frequent cleaning because of sediment and debris.
• Flexible Installation: Can be installed in any position with optional sealed cage for pit/vault applications, providing versatility for various system configurations.

FAQ

Q: What is the pressure range for the HR option on this valve?

A: The HR option provides a spring range of 75 psi to 125 psi and comes factory set at 85 psi.

Q: Can this valve be installed in outdoor pit or vault applications?

A: Yes, the valve can be installed in any position. For pit, vault, or inside applications, you should specify the "SC" sealed cage option for proper protection.

Q: What is the maximum pressure reduction ratio recommended for this valve?

A: Multiple installations are recommended for pressure reductions exceeding a 4:1 ratio. For example, reducing 200 psi inlet to 50 psi outlet should use multiple valves in series.

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