8 ZW205 RELIEF/SUSTA FIRE VLV ANG BODY ANSI 300 FLG SS SEAT CPR TUBNG BRZ FTNGS

Item Number: 8-ZW205FPAY
1 1
$23,274.43
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Type: Pilot Operated Pressure Relief / Pressure Sustaining Valve
  • Body Style: Angle Style
  • End Connection: ANSI Class 300 Flanged
  • Valve Size: 8 inch
  • Body Material: Ductile Iron ASTM A536
  • Seat Material: Stainless Steel
  • Pilot Spring Range: 50-200 psi
  • Certifications: ANSI/AWWA C530, NSF/ANSI/CAN 61

Description

The Zurn Wilkins Model ZW205 is an 8-inch pilot-operated pressure relief and pressure sustaining valve with an Angle Style Body. It is designed to precisely maintain upstream pressure in critical applications, either by relieving excess pressure or sustaining a set pressure. Featuring durable Ductile Iron ASTM A536 for the body and bonnet, Stainless Steel internal components, and Buna-N rubber disc, this valve ensures reliability. It comes with ANSI Class 300 flanged connections, a 50-200 psi pilot spring range, and is NSF/ANSI/CAN 61 certified Lead Free, offering a robust solution for fire safety and industrial systems.

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Installation Orientation

  • For 6-inch and larger automatic control valves, including this 8-inch model, horizontal installation with the valve cover up is recommended. This orientation facilitates proper air bleeding from the cover and simplifies maintenance procedures. Installing in a vertical orientation may lead to difficulties in these areas.
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Additional Details

The Zurn Wilkins Model ZW205 is a pilot-operated pressure relief and pressure sustaining valve designed to maintain a pre-determined upstream pressure. It modulates between closed and open positions to sustain desired upstream pressure or open to relieve excess pressure when necessary.

Features

  • Serves as either a relief or sustaining valve
  • Pilot system includes "Wye" Type Strainer, Closing Speed Control, and Isolation Valves
  • Includes Inlet Pressure Gauge
  • Blue Epoxy Coated, FDA Approved ferrous surfaces
  • Copper Tubing and Brass Fittings standard in pilot system
  • Pilot Spring Range: 50-200 psi
  • Operating Temperature Range: 33°F to 140°F for water

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

Caution: The recommended installation orientation for 6-inch and larger valves like this 8-inch model is horizontal, with the valve cover up, to ensure proper air bleeding and simplify maintenance.

Specifications

  • Type: Pilot Operated Pressure Relief / Pressure Sustaining Valve
  • Body Style: Angle Style
  • Valve Size: 8 inch
  • End Connection: ANSI Class 300 Flanged
  • Main Valve Body Material: Ductile Iron ASTM A536
  • Main Valve Bonnet Material: Ductile Iron ASTM A536
  • Disc Guide Material: Stainless Steel
  • Seat Material: Stainless Steel
  • Disc Material: Buna-N Rubber
  • Diaphragm Material: Nylon Reinforced Buna-N
  • Stem Material: Stainless Steel
  • Spring Material: Stainless Steel
  • Coating: Blue Epoxy Coated, FDA Approved
  • Pilot Spring Range: 50-200 psi
  • Temperature Range (Water): 33°F to 140°F

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 Model ZW205 valve?

It is a pilot-operated pressure relief and pressure sustaining valve designed to maintain a predetermined upstream pressure by modulating flow or relieving excess pressure to protect the system.

What materials are used for the main components of this 8-inch valve?

The main valve body and bonnet are Ductile Iron ASTM A536. The disc guide, seat, stem, and spring are Stainless Steel, while the disc is Buna-N Rubber and the diaphragm is Nylon Reinforced Buna-N.

What type of connections does this 8-inch ZW205 valve utilize?

This 8-inch ZW205 valve features ANSI Class 300 Flanged end connections, designed for secure attachment to corresponding piping systems.

What is the recommended installation orientation for this valve?

For 6-inch and larger automatic control valves like this 8-inch model, the recommended installation orientation is horizontal with the valve cover up. This orientation helps ensure proper air bleeding and simplifies future maintenance.

What are the key certifications for this ZW205 valve?

The Zurn Wilkins Model ZW205 valve is compliant with ANSI/AWWA C530 and meets the requirements of NSF/ANSI/CAN 61 for lead-free content (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT).

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