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

The Wilkins ZW4000-P 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: 360 psi
• Notable Certifications: UL Listed, C-UL Listed
• Inlet Connection: FNPT or Grooved
• Outlet Connection: Male Hose NH

Other Related Variants:

• ZW4000-O: 400 psi max inlet pressure version
• ZW4000-Q: 310 psi max inlet pressure version
• ZW4000-R: 290 psi max inlet pressure version
• ZW4000-S: 250 psi max inlet pressure version
• ZW4000-T: 225 psi max inlet pressure version
• ZW4000-U: 200 psi max inlet pressure version

Materials:

• Castings/Internals: Cast Bronze ASTM B 584
• Elastomers: Buna Nitrile (FDA approved)
• Elastomers: EPDM (FDA approved)

Typical Installation:

The Wilkins ZW4000-P is installed as a standpipe valve for individual hose stations in CLASS I and CLASS III fire protection systems.

Standards Compliance:

UL Listed; C-UL Listed; NYC MEA 325-06-E; City of Los Angeles Approved

Features & Benefits:

• Dual Condition Pressure Regulation: The Zurn ZW4000-P regulates pressure under both flow and no-flow conditions for consistent performance.
• Factory Pre-Configuration: Factory set and tapped and plugged for pressure gauges on inlet and outlet for easy installation and monitoring.
• Durable Bronze Construction: Cast bronze body per ASTM B 584 ensures long-lasting durability in demanding fire protection applications.
• Flexible Connection Options: Available with FNPT or grooved inlet connections and male hose outlet to suit various system configurations.

FAQ

Q: What is the maximum outlet pressure the Zurn ZW4000-P can deliver?

A: The valve is designed to assure a maximum outlet pressure of 175 psi under rated conditions, while safely handling inlet pressures up to 360 psi.

Q: Can the valve be tested at higher pressures during system installation?

A: Yes, the inlet side of the valve can be safely tested up to 400 psi during system hydrostatic leak testing.

Q: What optional configurations are available for the ZW4000-P?

A: Options include in-line (IL) or angle body types, grooved (G) connections, San Francisco hose thread (SF), specified hose thread (ST), cap and chain (CC), and chrome finish (CH). Suffixes can be combined.

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