NOTICE: Product images may vary from the actual item due to differences in size or configuration options.

The Wilkins 212-ZW209BP is a pilot-operated pressure reducing valve with integrated low-flow bypass, designed for high inlet pressure reduction to stable outlet pressure in commercial and industrial water systems.

Key Specifications:

• Size: 2 1/2 Inches
• Pilot Spring Range: 15–120 psi
• Temperature Rating: 33°F to 140°F
• Notable Certifications: NSF/ANSI 61 compliant
• End Connections: ANSI Class 150 Flanged

Other Related Variants:

• 112-ZW209BP: 1 1/2 Inches valve size
• 2-ZW209BP: 2 Inches valve size
• 3-ZW209BP: 3 Inches valve size
• 4-ZW209BP: 4 Inches valve size

Materials:

• Ductile iron body (ASTM A536)
• Ductile iron bonnet (ASTM A536)
• Stainless steel disc guide
• Stainless steel seat
• Stainless steel stem
• Stainless steel spring
• Buna-N rubber disc
• Nylon reinforced Buna-N diaphragm
• Blue epoxy coating (FDA approved)
• Copper tubing and brass fittings

Typical Installation:

The Zurn 212-ZW209BP is commonly used in buildings where 1-15 GPM low flows are common during off-peak usage. The valve is designed for applications requiring reduction of high inlet pressures to safe and stable outlet pressure with the ability to handle very low flows up to 10 GPM through the integrated low-flow bypass when the main valve closes during off-peak demand periods.

Standards Compliance:

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

Features & Benefits:

• Integrated Low-Flow Bypass: Handles flows up to 10 GPM during off-peak demand without opening the main valve, ensuring continuous pressure control.
• Complete Control Package: Includes wye strainer, isolation valves, inlet/outlet pressure gauges, and all necessary pilotry for immediate installation and operation.
• Corrosion Protection: FDA-approved blue epoxy coating on all internal and external ferrous surfaces provides long-term durability and corrosion resistance.
• Precision Pressure Control: Pilot-operated design modulates main valve position to maintain constant downstream pressure within 15-120 psi adjustable range.

FAQ

Q: What is the minimum inlet pressure required for the Wilkins 212-ZW209BP to operate properly?

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: How does the low-flow bypass function on the Zurn 212-ZW209BP?

A: The low-flow bypass is preset to a slightly higher pressure than the main pilot control. When the main valve closes due to low demand, the bypass valve remains open to handle flows up to 10 GPM, closing only when downstream pressure reaches its set point.

Q: Can the 212-ZW209BP be installed in any orientation?

A: The recommended installation orientation is horizontal with the valve cover up. This ensures proper air bleeding and facilitates maintenance procedures.

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