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The Wilkins ZW4000G-Q is a UL-listed pressure reducing standpipe valve designed for CLASS I and CLASS III fire protection systems, ensuring reliable pressure regulation.

Key Specifications:

• Size: 2 1/2 Inches
• Maximum Inlet Pressure: 310 psi
• Inlet Connection: Grooved AWWA C606
• Outlet Connection: Male Hose NFPA 1963
• Notable Certifications: UL and C-UL Listed

Other Related Variants:

• ZW4000G-P: 360 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
• ZW4000G-U: 200 psi maximum inlet pressure version

Materials:

• Cast Bronze ASTM B 584
• Buna Nitrile Elastomers (FDA approved)
• EPDM Elastomers (FDA approved)

Typical Installation:

The Zurn ZW4000G-Q is designed for individual hose stations in CLASS I and CLASS III fire protection systems. This pressure reducing valve is suitable for standpipe applications where consistent pressure regulation is required under both flow and no-flow conditions.

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; ASTM B 584

Features & Benefits:

• Dual Condition Regulation: Regulates pressure under both flow and no-flow conditions for consistent performance and safety.
• Heavy-Duty Construction: Cast bronze body construction provides exceptional durability and long-term reliability in demanding fire protection applications.
• Pre-Configured Design: Factory-set valve with tapped and plugged inlet and outlet for pressure gauge installation, simplifying setup and maintenance.
• Certified Performance: UL and C-UL listed with multiple municipal approvals ensuring compliance with fire safety codes and standards.

FAQ

Q: What is the maximum inlet pressure for the Wilkins ZW4000G-Q model?

A: The ZW4000G-Q bonnet type Q has a maximum rated inlet pressure of 310 psi to assure a maximum outlet pressure of 175 psi. The inlet side can be safely tested up to 400 psi during system hydrostatic leak testing.

Q: What type of connection does the ZW4000G-Q valve have?

A: The Zurn ZW4000G-Q features a grooved inlet connection conforming to AWWA C606 standards and a male hose outlet connection conforming to NFPA 1963 standards for 2 1/2 inch fire hose compatibility.

Q: Can this valve be used in both flow and no-flow conditions?

A: Yes, the Pressure-Tru ZW4000 Series is specifically designed to regulate pressure under both flow and no-flow conditions, making it ideal for standpipe fire protection systems where pressure consistency is critical.

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