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

The Wilkins ZW4000-R is a Pressure-Tru™ fire hose pressure reducing standpipe valve designed for CLASS I and CLASS III fire protection systems.

Key Specifications:

• Size: 2 1/2 Inches
• Maximum Inlet Pressure: 290 psi
• Inlet Connection: FNPT or Grooved
• Outlet Connection: Male Hose NH
• Notable Certifications: UL, C-UL Listed

Other Related Variants:

• ZW4000-O: 400 psi max inlet pressure version
• ZW4000-P: 360 psi max inlet pressure version
• ZW4000-Q: 310 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:

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

Typical Installation:

The Zurn ZW4000-R is listed 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 Regulation: Regulates pressure under both flow and no-flow conditions for consistent performance.
• Factory Ready Design: Factory tapped and plugged for pressure gauges, reducing installation time.
• Durable Construction: Cast bronze body with FDA approved elastomers ensures long-lasting reliability.
• Flexible Configuration: Available with FNPT or grooved inlet connections and multiple pressure rating options.

FAQ

Q: What is the maximum outlet pressure for the Wilkins ZW4000-R?

A: The valve is designed to assure a maximum outlet pressure of 175 psi when used within its rated maximum inlet pressure of 290 psi.

Q: Can the ZW4000-R be used with different inlet connection types?

A: Yes, the valve is available with FNPT (threaded) or grooved inlet connections to accommodate different piping systems.

Q: What is the difference between the ZW4000-R and other bonnet types?

A: The R bonnet type has a maximum inlet pressure rating of 290 psi. Other variants (O, P, Q, S, T, U) offer different maximum inlet pressure ratings ranging from 200 to 400 psi.

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