3 ZW205 RELIEF/SUSTA FIRE VLV ANG BODY ANSI GRVD SS SEAT CPR TUBNG BRZ FTNGS

Item Number: 3-ZW205FPAG
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$8,237.20
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Valve Type: Pilot Operated Pressure Relief / Pressure Sustaining
  • Valve Size: 3 inch
  • Body Style: Angle
  • End Connection: ANSI Grooved
  • Maximum Operating Pressure (Grooved): 300 PSI
  • Standard Pilot Spring Range: 50-200 psi
  • Main Valve Body Material: Ductile Iron ASTM A536
  • Certifications: NSF/ANSI/CAN 61 Lead Free, ANSI/AWWA C530

Description

The Zurn Wilkins Model ZW205 is a 3-inch pilot-operated pressure relief and sustaining valve featuring an angle body and ANSI grooved connections. This valve is engineered for critical applications requiring precise upstream pressure control, capable of relieving excess pressure or sustaining a desired set point. Constructed from durable ductile iron with stainless steel internal components and a blue epoxy coating, it ensures reliable performance for water temperatures from 33°F to 140°F. The standard pilot spring range is 50-200 psi. It is certified lead-free to NSF/ANSI/CAN 61 and ANSI/AWWA C530 standards for assured quality.

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Body Style and Connections

This Zurn ZW205 valve features an Angle Style Body, which is a common configuration for flow control valves where a 90-degree turn in the piping is desired, offering a compact installation profile. The valve is equipped with ANSI Grooved end connections, designed for quick and secure assembly using grooved pipe couplings, typically found in fire protection, industrial, and commercial applications. The 3 inch size ensures compatibility with corresponding 3 inch grooved piping systems.

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Additional Details

The Zurn Wilkins Model ZW205 Pilot Operated Pressure Relief / Pressure Sustaining Valve is designed to maintain a pre-determined upstream pressure, acting as either a pressure relief or pressure sustaining valve.

This 3 inch angle body valve is critical for applications requiring precise upstream pressure control, automatically opening to relieve excess pressure and closing to sustain desired levels.

Construction & Materials

  • Main Valve Body: Ductile Iron ASTM A536
  • Main Valve Bonnet: Ductile Iron ASTM A536
  • Disc Guide: Stainless Steel
  • Seat: Stainless Steel
  • Disc: Buna-N Rubber
  • Diaphragm: Nylon Reinforced Buna-N
  • Stem: Stainless Steel
  • Spring: Stainless Steel
  • Coating: Blue Epoxy Coated, FDA Approved (for all internal and external ferrous surfaces)

Connections

  • End Connection: ANSI Grooved
  • Valve Size: 3 inch

Standard Features

  • Pilot Assembly
  • "Wye" Type Strainer
  • Closing Speed Control (for sizes 1 1/4" - 4")
  • Isolation Valves
  • Inlet Pressure Gauge
  • ANSI Class 150 Flanges
  • Copper Tubing and Brass Fittings (for pilot system)

Caution: The recommended installation orientation for Automatic Control Valves (ACVs) is horizontal, with the valve cover up. 6 inch and larger valves should only be installed horizontally, with the valve cover up, due to the difficulty of properly bleeding air out of the cover and performing maintenance on valves installed in the vertical orientation.

Specifications

General

  • Product Type: Pilot Operated Pressure Relief / Pressure Sustaining Valve
  • Model: ZW205
  • Valve Size: 3 inch
  • Body Style: Angle
  • Port Type: Full Port

Materials

  • Main Valve Body: Ductile Iron ASTM A536
  • Main Valve Bonnet: Ductile Iron ASTM A536
  • Disc Guide: Stainless Steel
  • Seat: Stainless Steel
  • Disc: Buna-N Rubber
  • Diaphragm: Nylon Reinforced Buna-N
  • Stem: Stainless Steel
  • Spring: Stainless Steel
  • Coating: Blue Epoxy Coated, FDA Approved

Performance

  • Minimum Inlet Pressure: 10 PSI
  • Pilot Spring Range (Standard): 50-200 psi
  • Temperature Rating: Water 33°F to 140°F

Connections

  • End Connection: ANSI Grooved
  • Pressure Rating (Grooved): 300 psi max

Standard Features Included

  • Pilot Assembly
  • "Wye" Type Strainer
  • Closing Speed Control (for sizes 1 1/4" - 4")
  • Isolation Valves
  • Inlet Pressure Gauge
  • ANSI Class 150 Flanges
  • Pilot System Tubing & Fittings: Copper Tubing and Brass Fittings

Certificates & Approvals

  • Standards Compliance: ANSI/AWWA C530
  • Lead Content: Meets NSF/ANSI/CAN 61* (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary function of the Zurn ZW205 valve?

The Zurn ZW205 is a pilot-operated valve designed to function as both a pressure relief valve and a pressure sustaining valve. It maintains a predetermined upstream pressure by relieving excess pressure or sustaining a set level.

What body styles and connection types are available for the ZW205?

The ZW205 is available in globe and angle body styles. Connection types include threaded, flanged (ANSI Class 150/250), and grooved (ANSI Class 300/400), offering versatility for various installations.

What materials are used in the main valve body construction?

The main valve body and bonnet are constructed from Ductile Iron ASTM A536. Internal components like the disc guide, seat, stem, and spring are stainless steel, with a Buna-N rubber disc and nylon reinforced Buna-N diaphragm.

What are the standard pressure and temperature ranges for this valve?

The standard pilot spring range for the ZW205 is 50-200 psi. It has a minimum inlet pressure requirement of 10 PSI and is rated for water temperatures from 33°F to 140°F.

What certifications does the Zurn ZW205 hold?

The Zurn ZW205 valve meets ANSI/AWWA C530 standards and complies with NSF/ANSI/CAN 61 for lead content, ensuring it is lead-free (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT).

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