10 450 DC SS BODY BFLY GRV X GRV

Item Number: 10-450STBG
1 1
$53,831.74
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Model: 450ST Double Check Valve Assembly
  • Size: 10 inch
  • Body Material: 304L Stainless Steel
  • End Connections: Grooved Butterfly Valves with Integral Supervisory Switches
  • Maximum Operating Pressure: 175 PSI
  • Maximum Operating Temperature: 140° F
  • Lead-Free: Meets NSF/ANSI/CAN 61
  • Approvals: ASSE 1015, UL Classified, CSA B64.5

Description

The Wilkins Model 450ST is a 10-inch Double Check Valve Assembly (DC) with a 304L stainless steel body and grooved end butterfly valves, featuring integral supervisory switches. It is designed for new installations and direct drop-in replacement on potable water lines, providing protection against backsiphonage and backpressure in non-health hazard applications. This lead-free valve withstands corrosive water, offers easy maintenance, and has a compact footprint. It is approved by ASSE 1015, UL Classified, FM Approved, and meets NSF/ANSI/CAN 61 standards, ensuring reliable performance up to 175 PSI and 140° F.

Help Me Connect

The Wilkins Model 450ST Double Check Valve Assembly is designed for installation on potable water lines and features grooved end butterfly valves with integral supervisory switches.

  • It can be used for new installations or as a direct drop-in replacement for competitor valves with similar specifications.
  • The grooved ends facilitate connection to grooved steel piping systems.
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Additional Details

The Wilkins Model 450ST Double Check Valve Assembly is designed for both new installations and as a direct drop-in replacement on potable water lines. It provides protection against backsiphonage and backpressure of polluted water where a potential health hazard does not exist.

Materials

  • The main valve body and access covers are constructed from 304L Stainless steel for corrosion resistance.
  • Internals utilize Stainless steel (300 Series) and NORYLT™, which is NSF Listed.
  • Fasteners and springs are made of Stainless Steel (300 Series).
  • The seal ring is EPDM (FDA approved).
  • The O-ring is Buna Nitrile (FDA approved).

Features

  • Sizes available include 4", 6", 8", and 10".
  • Withstands the corrosive effects of water, extending product life.
  • Features a small, compact footprint for direct drop-in replacement.
  • Time-tested check and relief valve components ensure easy maintenance and increased water system uptime.
  • Patented compound checks provide ultra-low pressure drop, reducing the need for a booster pump.
  • Includes a patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves.
  • The AR spool maintains agency approvals when factory installed.
  • A backflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost.
  • This specific model includes grooved end butterfly valves with integral supervisory switches.

Connections

  • This assembly is designed with grooved end connections for steel pipe.
  • Can also be configured for a flanged bolt pattern (AWWA C606, ASME B16.42, Class 150).

Specifications

  • Model: 450ST
  • Type: Double Check Valve Assembly
  • Size: 10 inch
  • Main Valve Body Material: 304L Stainless steel
  • Access Cover Material: 304L Stainless steel
  • Internals Material: Stainless steel (300 Series), NORYLT™ (NSF Listed)
  • Fasteners and Springs Material: Stainless Steel (300 Series)
  • Seal Ring Material: EPDM (FDA approved)
  • O-ring Material: Buna Nitrile (FDA approved)
  • End Connections: Grooved Butterfly Valves with Integral Supervisory Switches
  • Maximum Working Water Pressure: 175 psi
  • Minimum Working Water Pressure: 20 psi
  • Maximum Working Water Temperature: 140° F
  • Minimum Working Water Temperature: 33° F
  • Hydrostatic Test Pressure: 350 psi
  • Orientation: Vertical Up - Vertical Down Orientation only

Certificates & Approvals

  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • ASSE® Listed 1015
  • AWWA Compliant C510 (with gates only) and C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • CSA® Certified B64.5
  • 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 450ST Double Check Valve Assembly?

The Wilkins Model 450ST is designed for installation on potable water lines to protect against backsiphonage and backpressure of polluted water where a potential health hazard does not exist. It is suitable for both new installations and as a direct drop-in replacement.

What types of end connections does this 10-inch Model 450ST have?

This specific 10-inch Model 450ST (SKU 10-450STBG) features grooved end butterfly valves with integral supervisory switches, suitable for grooved steel piping systems.

Is this backflow assembly lead-free?

Yes, the Wilkins Model 450ST meets the requirements of NSF/ANSI/CAN 61, with a maximum weighted average lead content of 0.25%, making it suitable for lead-free applications.

What is the maximum operating pressure and temperature for this valve?

The maximum working water pressure for the Model 450ST is 175 psi, and the maximum working water temperature is 140° F.

What materials are used for the main components of the 450ST?

The main valve body and access covers are made of 304L Stainless Steel. The internals include Stainless steel (300 Series) and NORYLT™, with EPDM (FDA approved) for the seal ring and Buna Nitrile (FDA approved) for the O-ring.