Wilkins 4-ZW209FPG | Fire Protection Pressure Reducing Valve, Grooved Ends
Wilkins 4-ZW209FPG | Fire Protection Pressure Reducing Valve, Grooved Ends is backordered and will ship as soon as it is back in stock.
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Wilkins 4-ZW209FPG | Fire Protection Pressure Reducing Valve, Groov...
The Wilkins 4-ZW209FPG is a pilot-operated pressure reducing valve engineered for fire suppression systems, maintaining stable downstream pressure with red epoxy coating and integrated strainer.
Key Specifications:
- Valve Size: 4 Inches
- Inlet Pressure Rating: 300 psi grooved
- Temperature Rating: 33°F to 140°F
- Notable Certifications: UL and C-UL Listed
- End Connections: Grooved (300 psi)
Other Related Variants:
- 2-ZW209FPG: 2 Inches valve size
- 212-ZW209FPG: 2 1/2 Inches valve size
- 3-ZW209FPG: 3 Inches valve size
- 6-ZW209FPG: 6 Inches valve size
- 8-ZW209FPG: 8 Inches valve size
- 10-ZW209FPG: 10 Inches valve size
Materials:
- Ductile Iron ASTM A536 body and cover
- Stainless steel disc guide, seat, stem, and spring
- Buna-N rubber disc
- Nylon reinforced Buna-N diaphragm
- Red epoxy coating (FDA approved) for corrosion protection
- Copper tubing and brass fittings
Typical Installation:
The upstream and downstream pressure gauges are required by Underwriters Laboratories (UL). A relief valve of not less than 1/2 inch in size must be installed on the downstream side of the Zurn 4-ZW209FPG. Adequate drainage for the relief valve discharge must be provided. The valve should be installed horizontally with the valve cover up. Flow calculations are based on flow through schedule 40 pipe with maximum continuous flow approximately 20 ft/sec and maximum intermittent flow 25 ft/sec.
Standards Compliance:
ANSI/AWWA C530; AWWA C606; ANSI B1.20.1; NFPA 13; NFPA 14; NFPA 25; UL and C-UL Listed
Features & Benefits:
- Pilot-Operated Pressure Control: Maintains constant downstream pressure regardless of flow rate changes or inlet pressure variations, ensuring system reliability.
- Corrosion Protection: Red epoxy coating on all internal and external ferrous surfaces provides FDA-approved corrosion resistance for extended service life.
- Complete Installation Package: Includes integrated wye strainer, inlet/outlet pressure gauges with 3-way isolation valves for simplified installation and adjustment.
- Minimal Pressure Loss: Pressure regulation independent of flow rate results in minimal friction loss through the valve body, maximizing system efficiency.
FAQ
Q: What is the adjustable pressure range for the Wilkins 4-ZW209FPG?
A: The pilot spring range is field adjustable from 50 to 165 psi residual pressure with a maximum static pressure rating of 175 psi.
Q: What is the minimum flow rate required to set this valve?
A: The 4 inch Zurn 4-ZW209FPG requires a minimum flow rate of 100 GPM to properly set the valve, with a minimum operating flow of 4 GPM and maximum flow capacity of 1000 GPM.
Q: Can this valve be installed vertically?
A: The recommended installation orientation is horizontal with the valve cover up. Vertical installation is not recommended for 6 inch and larger valves due to difficulty in bleeding air and performing maintenance.
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.
