The Wilkins 12-600XL is a water pressure reducing valve with integral by-pass check valve and strainer, designed for residential and commercial potable water systems to reduce high inlet pressure to a lower, safer outlet pressure while preventing thermal expansion buildup.

Key Specifications:

• Size: 1/2 Inches
• Maximum Working Water Pressure: 300 psi
• Maximum Working Water Temperature: 140°F
• Notable Certifications: ASSE 1003, IAPMO Listed, CSA Certified
• End Connections: Single Union

Other Related Variants:

• 34-600XL: 3/4 Inches version
• 1-600XL: 1 Inches version
• 114-600XL: 1 1/4 Inches version
• 112-600XL: 1 1/2 Inches version
• 2-600XL: 2 Inches version

Materials:

• Low Lead Cast Bronze ASTM B 584 (Main Valve Body)
• Low Lead Brass (Access Covers)
• Stainless Steel 300 Series (Fasteners)
• Low Lead Bronze/Brass (Stem & Plunger)
• Buna Nitrile FDA Approved (Elastomers)
• EPDM FDA Approved (Elastomers)
• Natural Vulcanized Fibre (Cap Gaskets)
• Acetal Delrin (Cap Gaskets)
• Stainless Steel 300 Series (Strainer Screen & Seat)

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 Zurn 1/2-600XL 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:

• Balanced Piston Design: Provides smooth and responsive reaction to changes in system flow demand while protecting from inlet pressure changes.
• Integral By-pass Protection: Prevents buildup of excessive system pressure caused by thermal expansion with direct acting integral by-pass design.
• Easy Maintenance Access: Separate threaded access covers for plunger and strainer screen enable frequent cleaning in systems with sediment and debris without requiring ferrous screws.
• Flexible Installation: Can be installed in any position including horizontal, vertical, or outdoor applications with appropriate options for pit/vault installations.

FAQ

Q: What is the factory preset pressure for the Zurn 12-600XL and can it be adjusted?

A: The valve comes factory preset at 50 psi with a standard adjustable range of 25 to 75 psi. Adjustment can be made using the bolt on the bell housing, but always use a downstream pressure gauge to verify the correct setting.

Q: Can the Wilkins 12-600XL be installed in a below-grade pit or vault?

A: Yes, the valve can be installed in pits or vaults, but you must specify the "SC" sealed cage option which includes sealed cage bell housing and stainless steel adjustment screw for these applications.

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, if reducing from 200 psi to 50 psi or greater reductions, consider installing multiple valves in series.

"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us