Wilkins 3" 450 OS&Y Gate Valves

Item Number: 3-450OSY
1 1
$8,879.84
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 3 inch
  • Weight: 298.0 lb
  • Lead-Free Compliant
  • N-Pattern Configuration
  • Epoxy-Coated Ductile Iron Body
  • OS&Y Gate Valves
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • ASSE® Listed 1015, IAPMO® Listed, CSA B64.5 Certified

Description

The Wilkins 3" Model 450 Double Check Valve Assembly with OS&Y Gate Valves is a lead-free compliant device for protecting potable water lines. It safeguards against backsiphonage and backpressure in low health hazard applications. Its N-Pattern configuration is ideal for compact or retrofit installations. Constructed with an epoxy-coated ductile iron body and equipped with full port OS&Y gate valves, it ensures durability and reliable performance. The patented center-stem guided Compound Check provides low headloss. This assembly is ASSE® Listed 1015, IAPMO® Listed, and CSA® Certified B64.5, meeting rigorous industry standards.

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Connections

This Wilkins Model 450 Double Check Valve Assembly features flanged end connections. This design allows for a secure and direct bolt-on installation into compatible flanged piping systems.

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Additional Details

The Wilkins Model 450 Double Check Valve Assembly with OS&Y Gate Valves is designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. This lead-free compliant assembly, featuring an N-Pattern configuration, is ideal for both new and retrofit installations in compact locations.

Application

  • Designed for installation on potable water lines.
  • Protects against both backsiphonage and backpressure of polluted water.
  • Ideal for use where lead-free* valves are required.
  • Suitable for low health hazard applications.

Features

  • N-Pattern configuration allows for use in compact enclosures and easy retrofit applications.
  • Patented, center-stem guided Compound Check provides low headloss and reliable, superior performance.
  • Convenient single access cover to reduce maintenance downtime.
  • Supplied with full port OS&Y gate valves.
  • Checks are accessible for maintenance without removing the device from the line.

Materials

  • Main Valve Body: Ductile Iron ASTM A 536 Grade 4, epoxy-coated.
  • Access Covers: Ductile Iron ASTM A 536 Grade 4, epoxy-coated.
  • Coatings: FDA Approved fusion epoxy finish.
  • Fasteners: Stainless Steel, 300 Series.
  • Elastomers: EPDM (FDA approved) and Buna Nitrile (FDA approved).
  • Polymers (Seat Ring/Check Valve): NORYL™.
  • Springs: Stainless Steel, 300 Series.
  • Stem: Stainless Steel ASTM A 276.

This is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable, please be sure you order carefully. If you have ANY questions please contact us before ordering.

Specifications

  • Product Size: 3 inch
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • Hydrostatic Test Pressure: 350 psi
  • Main Valve Body Material: Ductile Iron ASTM A 536 Grade 4
  • Access Cover Material: Ductile Iron ASTM A536 Grade 4
  • Coating: FDA Approved Fusion Epoxy Finish
  • Fastener Material: Stainless Steel, 300 Series
  • Elastomer Material: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymer Material: NORYL™
  • Spring Material: Stainless Steel, 300 Series
  • Stem Material: Stainless Steel ASTM A 276
  • Valve Type: OS&Y Gate Valves (Epoxy coated cast iron series 408 resilient wedged)
  • End Connections: Flanged

Certificates & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA B64.5 Certified
  • AWWA Compliant C510 and C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 213-99-M VOL 3
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets NSF/ANSI/CAN 61* requirements (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary application of the Wilkins Model 450 Double Check Valve Assembly?

It is designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply, especially in low health hazard applications where lead-free valves are required.

What are the key features of the Model 450 with OS&Y Gate Valves?

Key features include an N-Pattern configuration for compact installations, a patented center-stem guided Compound Check for low headloss, a single access cover for easy maintenance, and resilient-wedged OS&Y (Outside Stem & Yoke) gate valves.

What materials are used in the construction of this device?

The main valve body and access covers are epoxy-coated ductile iron (ASTM A536 Grade 4). It features stainless steel (300 Series) fasteners and springs, a stainless steel (ASTM A 276) stem, NORYL™ polymers for the seat ring/check valve, and EPDM (FDA approved) and Buna Nitrile (FDA approved) elastomers.

What certifications and approvals does the Wilkins Model 450 hold?

The Model 450 is ASSE® Listed 1015, IAPMO® Listed, CSA® Certified B64.5, AWWA Compliant C510 and C550, UL® Classified, C-UL® Classified, FM® Approved, and meets NSF/ANSI/CAN 61* requirements for lead content.

What type of end connections does this 3" Model 450 with OS&Y gate valves have?

This specific 3-inch model is supplied with flanged end connections, as indicated by the product description. This design ensures secure integration into compatible flanged piping systems.

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