Wilkins ZW4000G-U | 2-1/2" Pressure Reducing Standpipe Valve, Fire Hose
Wilkins ZW4000G-U | 2-1/2" Pressure Reducing Standpipe Valve, Fire Hose is backordered and will ship as soon as it is back in stock.
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Wilkins ZW4000G-U | 2-1/2" Pressure Reducing Standpipe Valve, ...
NOTICE: Product images may vary from the actual item due to differences in size or configuration options.
The Wilkins ZW4000G-U is a UL Listed pressure reducing standpipe valve designed for CLASS I and CLASS III fire hose systems, regulating pressure under both flow and no-flow conditions.
Key Specifications:
- Size: 2 1/2 Inches
- Maximum Inlet Pressure: 200 psi
- Flow Capacity: Up to 500 GPM
- Notable Certifications: UL Listed, C-UL Listed
- Connection Type: Grooved inlet, male hose outlet
Other Related Variants:
- ZW4000G-P: 360 psi maximum inlet pressure version
- ZW4000G-Q: 310 psi maximum inlet pressure version
- ZW4000G-R: 290 psi maximum inlet pressure version
- ZW4000G-S: 250 psi maximum inlet pressure version
- ZW4000G-T: 225 psi maximum inlet pressure version
Materials:
- Cast bronze body (ASTM B 584)
- Buna Nitrile elastomers (FDA approved)
- EPDM elastomers (FDA approved)
Typical Installation:
The Zurn ZW4000G-U is designed for individual hose stations in CLASS I and CLASS III standpipe systems, providing reliable pressure regulation for fire protection applications in commercial and residential buildings.
Standards Compliance:
UL Listed; C-UL Listed; NYC MEA 325-06-E; City of Los Angeles Approved; AWWA C606; NFPA 1963; ANSI B1.20.1
Features & Benefits:
- Dual-Condition Regulation: Maintains consistent pressure under both flow and no-flow conditions for reliable fire protection system performance.
- Durable Bronze Construction: Cast bronze body (ASTM B 584) ensures long-lasting durability in demanding fire protection environments.
- Field-Ready Design: Factory set with tapped and plugged inlet and outlet ports for easy pressure gauge installation and system monitoring.
- Comprehensive Listings: UL and C-UL Listed with multiple jurisdictional approvals for broad compliance and installation flexibility.
FAQ
Q: What is the difference between the bonnet type U and other bonnet types?
A: The bonnet type U designation indicates a maximum inlet pressure rating of 200 psi. Other bonnet types (P, Q, R, S, T) accommodate higher inlet pressures ranging from 225 to 360 psi.
Q: Can the Wilkins ZW4000G-U regulate pressure under no-flow conditions?
A: Yes, the Zurn ZW4000G-U is specifically designed to regulate pressure under both flow and no-flow conditions, ensuring consistent outlet pressure at all times.
Q: What is the difference between the grooved and threaded inlet models?
A: The ZW4000G-U features a grooved inlet connection compliant with AWWA C606 standards, while the ZW4000 model uses a female NPT threaded inlet connection per ANSI B1.20.1.
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.
