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

The Wilkins ZW4004ILGSS-S is a Pressure-Tru™ automatic fire control pressure reducing valve designed for reliable pressure regulation in automatic sprinkler and standpipe systems under both flow and no-flow conditions.

Key Specifications:

• Size: 2 1/2 Inches
• Maximum Inlet Pressure: 400 psi
• Notable Certifications: UL Listed, C-UL Listed
• End Connections: Grooved inlet and outlet
• Configuration: In-line globe type

Other Related Variants:

• ZW4004ILGSS-R: Pressure setting R
• ZW4004ILGSS-T: Pressure setting T
• ZW4004ILGSS-U: Pressure setting U

Materials:

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

Typical Installation:

The Zurn ZW4004ILGSS-S is listed as a floor control valve, an indicating valve, and a check valve in automatic sprinkler systems as well as a standpipe valve for CLASS I and CLASS III systems.

Standards Compliance:

UL Listed; C-UL Listed; NYC MEA 325-06-E; City of Los Angeles Approved; California State Fire Marshal Listed

Features & Benefits:

• Factory Set Pressure: Non-field adjustable design ensures consistent pressure regulation for optimal fire protection system performance.
• Integral Supervisory Switch: Built-in listed supervisory switch (3 A @ 125 VAC) monitors valve position with tamper-resistant cover for enhanced system monitoring.
• Dual-Condition Regulation: Regulates pressure effectively under both flow and no-flow conditions for reliable system operation.
• Comprehensive Approvals: UL & C-UL Listed with NYC MEA and Fire Marshal approvals ensure compliance with major fire safety standards.

FAQ

Q: What is the difference between pressure settings S, R, T, and U?

A: Each pressure setting letter represents a different factory-calibrated outlet pressure profile. Refer to the residual pressure charts to select the appropriate setting based on your system's inlet pressure and required downstream pressure.

Q: Can the pressure setting be adjusted in the field?

A: No, the Wilkins ZW4004ILGSS-S is non-field adjustable and comes factory set to ensure reliable, consistent performance according to design specifications.

Q: What is the purpose of the integral supervisory switch?

A: The supervisory switch monitors valve position and provides an electrical signal (3 A @ 125 VAC) to alert system operators of any unauthorized valve tampering or position changes, ensuring fire protection system integrity.

"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us