Wilkins 6" 450 OS&Y Gate Valves

Item Number: 6-450OSY
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$16,959.52
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Valve Type: Double Check Valve Assembly
  • Weight: 490.0 lb
  • Nominal Size: 6 inch
  • Connection Type: Flanged
  • Includes: OS&Y Gate Valves
  • Body Material: Epoxy Coated Ductile Iron
  • Maximum Working Pressure: 175 psi
  • Maximum Working Temperature: 140° F
  • Compliance: Lead-Free, ASSE® Listed 1015, NSF/ANSI/CAN 61

Description

The Wilkins 6" Model 450 Double Check Valve Assembly with OS&Y Gate Valves provides critical protection against backsiphonage and backpressure in potable water lines. This lead-free device is designed for low health hazard applications, featuring an epoxy-coated ductile iron body and flanged connections for durable, corrosion-resistant service. Its "N" pattern configuration allows for compact installation and easy retrofits. The patented center-stem guided compound check ensures low headloss and reliable performance. It includes robust OS&Y gate valves and is ASSE® Listed 1015 and NSF/ANSI/CAN 61 compliant. Item number 6-450OSY.

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Connections and Compatibility

The Wilkins 6 inch Model 450 Double Check Valve Assembly is designed with flanged end connections for secure installation into existing or new piping systems. It is supplied with OS&Y (Outside Stem and Yoke) gate valves for isolation. This "N" pattern configuration is suitable for installation in compact spaces and on potable water lines.

  • Connects to 6 inch flanged piping systems.
  • OS&Y gate valves provide clear visual indication of valve position.
  • Protects against backsiphonage and backpressure in potable water lines.
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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 assembly provides protection where a potential health hazard does not exist and is ideal for applications requiring lead-free valves.

It is suitable for replacement of existing devices or for new installations, featuring an epoxy coated ductile iron flanged device and an "N" pattern configuration for compact locations.

Features

  • Patented, center-stem guided Compound Check provides low headloss and reliable performance.
  • Convenient single access cover reduces maintenance downtime.
  • Configured in an "N" pattern for use in compact enclosures and easy retrofit.
  • Comes standard with OS&Y gate valves, which are epoxy coated cast iron series 408 resilient wedge OS&Y valves.
  • Lead-Free Compliant.

Materials

  • Main Valve Body: Ductile Iron ASTM A 536 Grade 4
  • Access Covers: Ductile Iron ASTM A536 Grade 4
  • Coatings: FDA Approved fusion epoxy finish
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved) and Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless Steel, 300 Series

Connections

  • End Connections: Flanged
  • Valve Size: 6 inch

Specifications

  • Valve Model: Wilkins Model 450
  • Valve Type: Double Check Valve Assembly with OS&Y Gate Valves
  • Nominal Size: 6 inch (150 mm)
  • 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
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • Hydrostatic Test Pressure: 350 psi
  • End Connections: Flanged
  • Configuration: "N" Pattern

Certificates & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA® Certified B64.5
  • 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 the requirements of NSF/ANSI/CAN 61* (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

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

It is primarily used for installation on potable water lines to protect against backsiphonage and backpressure of polluted water into the potable water supply in low health hazard applications.

What type of gate valves are included with this Model 450 assembly?

This particular Wilkins Model 450 assembly comes standard with OS&Y (Outside Stem and Yoke) gate valves, which are epoxy coated cast iron series 408 resilient wedge valves.

What are the end connections for this 6-inch model?

This 6-inch Wilkins Model 450 Double Check Valve Assembly is equipped with flanged end connections for secure and durable installation.

Is this product lead-free compliant?

Yes, the Wilkins Model 450 Double Check Valve Assembly meets the requirements of NSF/ANSI/CAN 61, ensuring it is lead-free compliant.

What materials are used for the main body and access covers?

The main valve body and access covers are made from ductile iron ASTM A 536 Grade 4, which is further protected by an FDA Approved fusion epoxy finish for corrosion resistance.

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