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

The Wilkins ZW4000G-S is a Pressure-Tru™ fire hose pressure reducing standpipe valve designed for CLASS I and CLASS III systems, regulating pressure under both flow and no-flow conditions.

Key Specifications:

• Size: 2 1/2 Inches
• Maximum Inlet Pressure: 250 psi (Bonnet S)
• Notable Certifications: UL Listed, C-UL Listed
• Inlet Connection: Grooved AWWA C606
• Outlet Connection: Male Hose NFPA 1963

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-T: 225 psi maximum inlet pressure version
• ZW4000G-U: 200 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-S Pressure-Tru™ valve is designed for individual hose stations in CLASS I and CLASS III standpipe systems, providing reliable pressure regulation for fire protection applications requiring consistent downstream pressure control.

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 Pressure Regulation: Regulates pressure under both flow and no-flow conditions, ensuring consistent performance during standby and active use.
• Durable Cast Bronze Construction: Built with ASTM B 584 cast bronze body for long-lasting reliability in demanding fire protection applications.
• Grooved Inlet Design: Features AWWA C606 grooved inlet connection for faster, more efficient installation compared to threaded connections.
• UL & C-UL Listed: Meets rigorous safety and performance standards for fire protection equipment, ensuring code compliance and system reliability.

FAQ

Q: What is the difference between the various bonnet types (P, Q, R, S, T, U) for the Wilkins ZW4000G-S?

A: Each bonnet type corresponds to a different maximum inlet pressure rating. Bonnet Type S has a maximum inlet pressure of 250 psi, while other variants range from 200 psi (Type U) to 360 psi (Type P), allowing selection based on specific system requirements.

Q: Can the Zurn ZW4000G-S be installed in both angle and inline configurations?

A: The ZW4000G-S model features an angle body configuration. For inline (globe type) installations, the ZW4000ILG model is available with similar specifications but in an inline body design.

Q: What is the outlet connection type on this fire hose valve?

A: The valve features a male hose (NH) outlet connection conforming to NFPA 1963 standards, making it compatible with standard fire hose connections used throughout North America.

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