The Wilkins 34-600XL 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 Pressure: 300 psi
• Maximum Working Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO, CSA
• Connection Type: Single Union

Other Related Variants:

• 12-600XL: 1/2 Inch model size
• 1-600XL: 1 Inch model size
• 114-600XL: 1 1/4 Inches model size
• 112-600XL: 1 1/2 Inches model size
• 2-600XL: 2 Inches model size

Materials:

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

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 recommended 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: Integral by-pass design 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 strainer makes this valve ideal for systems requiring frequent cleaning due to sediment and debris.
• Flexible Installation: Can be installed in any position with separate access covers for plunger and strainer screen maintenance.

FAQ

Q: What is the factory preset pressure for the Zurn 34-600XL?

A: The Zurn 34-600XL comes factory preset at 50 psi, with an adjustable reduced pressure range of 25 psi to 75 psi.

Q: Can this valve be installed in a vertical position?

A: Yes, the Wilkins 34-600XL can be installed in any position. For pit or vault installations, specify the "SC" sealed cage option.

Q: When should I use a downstream pressure gauge?

A: A downstream pressure gauge must be used anytime the reducing valve is adjusted to verify the correct pressure setting. Do not bottom the adjustment bolt on the bell housing.

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