The Wilkins 3-ZW209 is a pilot operated pressure reducing valve designed for stable pressure regulation in commercial and industrial water systems.

Key Specifications:

• Size: 3 Inches
• Pressure Rating: ANSI Class 150, 250 psi max
• Temperature Rating: 33°F to 140°F
• Notable Certifications: NSF/ANSI/CAN 61
• End Connection: ANSI Class 150 Flanged

Other Related Variants:

• 212-ZW209: 2 1/2 Inch model size
• 2-ZW209: 2 Inch model size
• 4-ZW209: 4 Inch model size
• 6-ZW209: 6 Inch model size
• 8-ZW209: 8 Inch model 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: FDA Approved
• Copper Tubing and Brass Fittings

Typical Installation:

The recommended installation orientation is horizontal with the valve cover up. For 6 inch and larger valves, horizontal installation with valve cover up is required due to the difficulty of properly bleeding air out of the cover and performing maintenance on valves installed in the vertical orientation. The Zurn 3-ZW209 should be installed with inlet and outlet shut-off valves for proper maintenance and operation.

Standards Compliance:

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

Features & Benefits:

• Stable Pressure Control: Pilot assembly reacts to downstream pressure changes, ensuring constant outlet pressure regardless of flow rate or inlet pressure variations.
• Complete System Protection: Includes pilot assembly, wye strainer, isolation valves, and inlet/outlet pressure gauges for comprehensive monitoring and easy maintenance.
• Corrosion Resistant: Fusion epoxy coating on all internal and external surfaces provides superior protection and long service life.
• Adjustable Pressure Range: Field adjustable pilot spring range from 15 to 120 psi allows for flexible system configuration.

FAQ

Q: What is the minimum inlet pressure required for the Wilkins 3-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 this valve be installed vertically?

A: While smaller sizes may be installed vertically, the recommended orientation is horizontal with the valve cover up. For 3 inch and larger valves, horizontal installation is strongly recommended for proper air bleeding and maintenance access.

Q: What is the adjustable downstream pressure range?

A: The standard pilot spring range is adjustable from 15 to 120 psi. Optional low pressure (5-25 psi) and high pressure (30-300 psi) pilots are available.

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