Zurn Wilkins ZW4104SS Pressure-Tru® 1-1/2" Pressure Reducing Fire Sprinkler Control Valve, Integral Supervisory Switch
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Zurn Wilkins ZW4104SS Pressure-Tru® 1-1/2″ Pressure Reducing Fire Sprinkler Control Valve, Integral Supervisory Switch

Original price was: $2,241.99.Current price is: $298.98.

Inlet – Outlet Connection Type:

Bonnet Type – Max Inlet Pressure:

Finish:

SKU: 6137254445231 Category:

Description

Zurn Wilkins ZW4104SS 1-1/2″ Pressure Reducing Fire Sprinkler Control Valve with Supervisory Switch.

Product Overview

The Zurn Wilkins ZW4104SS Pressure-Tru® Fire Sprinkler Control Valve is a factory-set, non-adjustable pressure reducing valve designed to ensure safe, consistent water pressure in fire protection systems. Acting as a floor control valve, indicating valve, and check valve, it’s ideal for automatic sprinkler and standpipe Class II systems.

With a built-in supervisory switch, tamper-resistant housing, and durable cast bronze construction, the ZW4104SS is UL, C-UL, and California State Fire Marshal listed for proven reliability in both indoor and outdoor fire sprinkler applications.

Features & Benefits

  • Pressure reducing design regulates outlet pressure under flow and no-flow conditions

  • Built-in supervisory switch for monitoring and safety compliance

  • 1-1/2″ FNPT or grooved connections for versatile installation options

  • Non-field adjustable, factory set for consistent and reliable operation

  • Cast bronze body with Buna Nitrile and EPDM elastomers for durability

  • Tamper-resistant housing with rotatable switch for easy wiring

Specifications

  • Size: 1-1/2″

  • Maximum Inlet Pressure: 400 PSI

  • End Connections:

    • FNPT (ANSI B1.20.1)

    • Grooved (AWWA C606)

  • Factory Pressure Setting: Non-adjustable

  • Materials:

    • Body: Cast bronze, ASTM B 584

    • Elastomers: Buna Nitrile & EPDM (FDA approved)

  • Compliance:

    • UL® Listed

    • C-UL® Listed

    • California State Fire Marshal Listed

Installation Tips

  • Install in accordance with NFPA and local fire code requirements.

  • Ensure correct orientation with inlet and outlet connections properly aligned.

  • Use the tamper-resistant housing to protect supervisory switch wiring.

  • Allow adequate clearance for valve operation and inspections.

  • Test the valve during system commissioning to verify pressure regulation and supervisory switch function.

FAQs

Q: What type of systems is the ZW4104SS approved for?
A: It’s approved for use in automatic fire sprinkler systems and Class II standpipe systems.

Q: Can the outlet pressure be field adjusted?
A: No, it is factory set only to ensure safe and consistent operation.

Q: Does it come with a supervisory switch?
A: Yes, the supervisory switch is factory-installed and tamper-resistant.

Q: What’s the maximum inlet pressure rating?
A: The valve is rated for up to 400 PSI inlet pressure.

Q: Can it be installed outdoors?
A: Yes, it is suitable for both indoor and outdoor applications.

Additional information

mycustom

Inlet – Outlet Connection Type#1-1/2" FNPT x 1-1/2" FNPT, 1-1/2" Grooved x 1-1/2" Grooved~Bonnet Type – Max Inlet Pressure#J Bonnet – 400 psi, K Bonnet – 400 psi, L Bonnet – 400 psi, M Bonnet – 360 psi, N Bonnet – 325 psi, O Bonnet – 290 psi, P Bonnet – 240 psi, Q Bonnet – 200 psi~Finish#Bronze (Standard), CH Rough Chrome Finish

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