2.5 ZW205 RELIEF/SUSTA FIRE VLV GLOBE BODY ANSI 150 FLG SS SEAT CPR TUBNG BRZ FTNGS

Item Number: 212-ZW205FPG
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$7,808.92
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Function: Pressure Relief / Pressure Sustaining
  • Nominal Size: 2.5 inch (65 mm)
  • Body Style: Full Port Globe
  • End Connection: ANSI Class 150 Flanged
  • Main Valve Body Material: Ductile Iron ASTM A536
  • Seat Material: Stainless Steel
  • Pilot Spring Range: 50-200 psi
  • Certifications: NSF/ANSI/CAN 61, ANSI/AWWA C530, Lead Free

Description

The Zurn Wilkins Model ZW205 is a 2.5 inch pilot-operated pressure relief and pressure sustaining valve designed to precisely manage upstream pressure. Ideal for fire safety and industrial systems, it relieves excess pressure or sustains minimum upstream pressure. This valve features a durable ductile iron globe body, ANSI Class 150 flanged connections, and a stainless steel seat. An FDA-approved blue epoxy coating provides corrosion resistance. Standard features include a wye strainer, isolation valves, and an inlet pressure gauge for simplified installation and maintenance. Compliant with NSF/ANSI/CAN 61 and Lead Free standards.

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Connections & Installation

  • This Zurn Wilkins ZW205 valve features 2.5 inch ANSI Class 150 flanged connections, designed for secure and reliable integration into your piping system.
  • The valve is configured with a full port globe body.
  • For proper operation and maintenance, the recommended installation orientation for this automatic control valve is horizontal, with the valve cover up. Avoid vertical installation, especially for 6" and larger valves, due to air bleeding and maintenance difficulties.
  • The pilot system senses upstream pressure and can be preset to specific system requirements within the 50-200 psi pilot spring range.
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Additional Details

The Zurn Wilkins Model ZW205 is a pilot operated pressure relief/pressure sustaining valve, designed for applications where it is critical to maintain a pre-determined upstream pressure. This 2.5 inch valve modulates between closed and open positions to either relieve excess pressure or sustain desired upstream pressure in fire safety and industrial systems.

Key Features

  • Maintains a pre-determined upstream pressure, acting as both a pressure relief and pressure sustaining valve.
  • Features a globe style body with ANSI Class 150 flanged connections for versatile installation.
  • Blue Epoxy Coated, FDA Approved ferrous surfaces for enhanced durability and corrosion resistance.
  • Includes a comprehensive pilot assembly with a "Wye" Type Strainer, Closing Speed Control, and Isolation Valves.
  • Equipped with an Inlet Pressure Gauge and standard Copper Tubing and Brass Fittings.
  • Designed for ease of maintenance with field replaceable parts, reducing total cost of ownership.

Construction Materials

  • Main Valve Body: Ductile Iron ASTM A536
  • Main Valve Bonnet: Ductile Iron ASTM A536
  • Seat and Disc Guide: Stainless Steel
  • Disc: Buna-N Rubber
  • Diaphragm: Nylon Reinforced Buna-N
  • Stem and Spring: Stainless Steel

Performance & Compliance

  • Standard pilot spring range of 50-200 psi.
  • Suitable for water temperatures from 33°F to 140°F.
  • Requires a minimum inlet pressure of 10 PSI.
  • Certified to NSF/ANSI/CAN 61 (0.25% Max. Weighted Average Lead Content) and ANSI/AWWA C530, ensuring high standards for water applications.
  • Caution: The recommended installation orientation for this automatic control valve is horizontal, with the valve cover up.

Specifications

  • Model: ZW205
  • Function: Pressure Relief / Pressure Sustaining
  • Nominal Size: 2.5 inch (65 mm)
  • Body Style: Globe, Full Port
  • End Connection Type: ANSI Class 150 Flanged

Performance

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

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
  • Pilotry Tubing: Copper
  • Pilotry Fittings: Brass
  • Coating: Blue Epoxy Coated, FDA Approved

Standard Features Included

  • Pilot Assembly: "Wye" Type Strainer, Closing Speed Control, Isolation Valves
  • Inlet Pressure Gauge

Certificates & Approvals

  • ANSI/AWWA C530
  • NSF/ANSI/CAN 61 (0.25% Max. Weighted Average Lead Content)
  • Lead Free

FAQs

What is the primary function of the Zurn Wilkins ZW205 valve?

The Zurn Wilkins ZW205 is a pilot-operated valve designed to function as both a pressure relief valve and a pressure sustaining valve. It maintains a pre-determined upstream pressure by either relieving excess pressure or sustaining a minimum pressure.

What are the main body and seat materials of this 2.5 inch valve?

The main valve body is constructed from Ductile Iron ASTM A536, and the valve seat is made of Stainless Steel. These materials ensure durability and corrosion resistance.

What type of connections does this specific ZW205 model use?

This specific ZW205 model (SKU 212-ZW205FPG) features 2.5 inch ANSI Class 150 flanged connections, providing a robust and secure method for integration into piping systems.

What is the standard operating pressure range for the pilot spring?

The standard pilot spring range for the Zurn Wilkins ZW205 valve is 50 to 200 psi. Other pilot spring ranges may be available depending on specific model configurations.

Is the Zurn Wilkins ZW205 suitable for potable water applications?

Yes, the Zurn Wilkins ZW205 valve meets the requirements of NSF/ANSI/CAN 61 (0.25% Max. Weighted Average Lead Content) and is Lead Free, making it suitable for potable water applications.

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