Wilkins 212-ZW209 | 2-1/2" Pilot Operated Pressure Reducing Valve
Wilkins 212-ZW209 | 2-1/2" Pilot Operated Pressure Reducing Valve is backordered and will ship as soon as it is back in stock.
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Wilkins 212-ZW209 | 2-1/2" Pilot Operated Pressure Reducing Valve
The Wilkins 212-ZW209 is a pilot-operated pressure reducing valve designed to regulate high inlet pressures to stable outlet pressures in commercial and industrial water systems.
Key Specifications:
- Size: 2 1/2 Inches
- Pressure Rating: ANSI Class 150
- Temperature Rating: 33°F to 140°F
- Notable Certifications: NSF/ANSI/CAN 61 compliant
- Connection Type: Flanged connections
Other Related Variants:
- 2-ZW209: 2 Inch valve size
- 3-ZW209: 3 Inch valve size
- 4-ZW209: 4 Inch valve size
- 6-ZW209: 6 Inch valve size
- 8-ZW209: 8 Inch valve size
Materials:
- Ductile iron body with fusion epoxy coating (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
- Copper tubing and brass fittings
Typical Installation:
The Zurn 212-ZW209 is recommended for horizontal installation with the valve cover up. For 6 inch and larger valves, horizontal installation with the valve cover up is required due to the difficulty of properly bleeding air and performing maintenance in vertical orientations. The valve should be installed with inlet and outlet shut-off valves for maintenance access and operational control in commercial water systems.
Standards Compliance:
ANSI/AWWA C530; NSF/ANSI/CAN 61 (0.25% maximum weighted average lead content)
Features & Benefits:
- Stable Pressure Regulation: Pilot assembly reacts to downstream pressure changes, modulating the main valve between closed and open positions to maintain constant downstream pressure regardless of flow rate or inlet pressure variations.
- Corrosion Protection: FDA-approved fusion epoxy coating on all internal and external ferrous surfaces provides superior durability and extended service life.
- Easy Maintenance: Includes standard isolation valves and inlet/outlet pressure gauges for quick field adjustments and simplified troubleshooting.
- Versatile Adjustability: Field-adjustable pilot spring range from 15 to 120 psi allows for flexible pressure control across various applications.
FAQ
Q: What is the minimum inlet pressure required for the Wilkins 212-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: Horizontal installation with the valve cover up is recommended. Valves 6 inches and larger should only be installed horizontally due to difficulty bleeding air and performing maintenance in vertical orientations.
Q: What happens if design flow falls below the minimum continuous flow rate?
A: A low flow bypass shall be installed in cases where design flow falls below the minimum continuous flow rate to ensure proper valve operation.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
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Always consult with a licensed professional and check local codes before installation. For further details, check the Owners Manual.
Contact us at support@bottlefillingstations.com with any questions.
