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The Wilkins ZW4000-T 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: 225 psi
• Outlet Connection: Male Hose (NH)
• Notable Certifications: UL and C-UL Listed
• Inlet Connection: FNPT or Grooved

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-U: 200 psi max inlet pressure version

Materials:

• Cast bronze ASTM B 584
• Buna Nitrile elastomers (FDA approved)
• EPDM elastomers (FDA approved)

Typical Installation:

The Zurn ZW4000-T is listed as a standpipe valve for individual hose stations in CLASS I and CLASS III fire protection systems where 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

Features & Benefits:

• Dual Pressure Regulation: Regulates pressure under both flow and no-flow conditions for consistent performance in fire protection systems.
• Factory Prepared for Monitoring: Tapped and plugged inlet and outlet for pressure gauge installation enables easy system monitoring.
• Durable Bronze Construction: Cast bronze ASTM B 584 body with FDA-approved elastomers ensures long-lasting reliability in demanding applications.
• Flexible Connection Options: Available with FNPT or grooved inlet connections to accommodate various piping system configurations.

FAQ

Q: What is the maximum inlet pressure for the Wilkins ZW4000-T?

A: The Wilkins ZW4000-T has a maximum inlet pressure rating of 225 psi, with other variants available for higher pressure applications up to 400 psi.

Q: Can the valve be used in both CLASS I and CLASS III fire protection systems?

A: Yes, the Zurn ZW4000-T is UL and C-UL listed as a standpipe valve for individual hose stations in both CLASS I and CLASS III systems.

Q: What connection types are available for the ZW4000-T?

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

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