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The Wilkins 6-ZW209 is a pilot operated pressure reducing valve designed to reduce high inlet pressures to safe, stable outlet pressures in commercial and industrial water systems.

Key Specifications:

• Valve Size: 6 Inches
• Pressure Rating: ANSI Class 150, 250 psi max
• Temperature Rating: 33°F to 140°F
• Notable Certifications: NSF/ANSI/CAN 61 compliant
• Pilot Adjustable Range: 15–120 psi

Other Related Variants:

• 212-ZW209: 2 1/2 Inches valve size
• 2-ZW209: 2 Inches valve size
• 3-ZW209: 3 Inches valve size
• 4-ZW209: 4 Inches valve size
• 8-ZW209: 8 Inches valve size

Materials:

• Main Valve Body: Ductile Iron ASTM A536
• Main Valve Bonnet: Ductile Iron ASTM A536
• Disc Guide: Stainless Steel
• Seat: Stainless Steel
• Disc: Buna-N Rubber
• Diaphragm: Nylon Reinforced Buna-N
• Stem: Stainless Steel
• Spring: Stainless Steel
• Fusion Epoxy Coating (internal and external)
• Copper Tubing and Brass Fittings

Typical Installation:

The recommended installation orientation for the Zurn 6-ZW209 is horizontal with the valve cover up. 6 Inches and larger valves should only be installed horizontally with the valve cover up due to the difficulty of properly bleeding air out of the cover and performing maintenance on valves installed in the vertical orientation. The valve should be installed with inlet and outlet shut-off valves for proper system control.

Standards Compliance:

ANSI/AWWA C530; NSF/ANSI/CAN 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Features & Benefits:

• Stable Pressure Regulation: Pilot assembly reacts to downstream pressure changes ensuring constant outlet pressure regardless of flow rate or inlet pressure variations.
• Corrosion Protection: FDA-approved fusion epoxy coating on all internal and external surfaces provides superior durability and long service life.
• Easy Maintenance: Includes standard isolation valves and inlet/outlet pressure gauges for quick troubleshooting, adjustment, and repair without system shutdown.
• Complete Assembly: Comes with wye strainer, opening speed control, pilot assembly, and all necessary components for immediate installation and operation.

FAQ

Q: What is the minimum inlet pressure required for the Wilkins 6-ZW209?

A: The minimum inlet pressure is 10 psi higher than the set point or the additional body friction loss at intended flow, whichever is higher.

Q: Can the outlet pressure be adjusted on the Zurn 6-ZW209?

A: Yes, the pilot assembly is field adjustable from 15 psi to 120 psi, allowing for precise control of downstream pressure to meet specific application requirements.

Q: What components are included with the valve for maintenance purposes?

A: The valve comes standard with isolation valves on both inlet and outlet sides, inlet and outlet pressure gauges, a wye-type strainer, and a pilot assembly with all necessary copper tubing and brass fittings.

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