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

The Wilkins ZW4000-U is a Pressure-Tru™ fire hose pressure reducing standpipe valve designed for CLASS I and III systems, regulating pressure under both flow and no-flow conditions.

Key Specifications:

• Size: 2 1/2 Inches
• Maximum Inlet Pressure: 200 psi
• Maximum Outlet Pressure: 175 psi
• Notable Certifications: UL Listed, C-UL Listed
• Connection Type: FNPT or Grooved Inlet

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-R: 290 psi max inlet pressure version
• ZW4000-S: 250 psi max inlet pressure version
• ZW4000-T: 225 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-U 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: The Wilkins ZW4000-U regulates pressure under both flow and no-flow conditions, ensuring consistent performance.
• Factory Tapped for Gauges: Pre-tapped and plugged inlet and outlet connections allow for easy pressure gauge installation and monitoring.
• Durable Bronze Construction: Cast bronze ASTM B 584 body provides long-lasting durability in demanding fire protection applications.
• Multiple Connection Options: Available with FNPT or grooved inlet connections and male hose outlet for versatile installation requirements.

FAQ

Q: What is the maximum inlet pressure rating for the ZW4000-U model?

A: The Zurn ZW4000-U has a maximum inlet pressure rating of 200 psi while maintaining a maximum outlet pressure of 175 psi.

Q: What connection types are available for this valve?

A: The valve features FNPT or grooved inlet connections per AWWA C606 standards and male hose (NH) outlet connections per NFPA 1963.

Q: Is this valve suitable for both flow and no-flow pressure regulation?

A: Yes, the Pressure-Tru™ valve is specifically designed to regulate pressure under both flow and no-flow conditions in fire protection systems.

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