8 2000SS-DNRS

Item Number: 0692778
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Regular price $22,246.51
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Estimated transit time: 2 to 5 Business Days

Brand - Ames

  • Nominal Size: 8 inch
  • Weight: 710.0 lb
  • Body Material: 300 Series Stainless Steel
  • Shutoff Valves: Domestic Non-Rising Stem (NRS)
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 110°F
  • Lead Free: Contains less than 0.25% lead by weight
  • Low Head Loss Cam-Check Assembly
  • Suitable for horizontal or vertical flow up installation

Description

This 8 inch lead free double check valve backflow preventer assembly prevents the reverse flow of non-potable water into the potable water supply. Designed for continuous pressure service, it safeguards against backsiphonage and backpressure in non-health hazard installations. Key features include a durable 300 Series stainless steel body for corrosion resistance and domestic non-rising stem (NRS) gate valves. Its compact, lightweight design with a cam-check assembly ensures low head loss and easy maintenance. Approved for horizontal or vertical installation, it operates up to 175 psi within a 33°F to 110°F temperature range and is compliant with AWWA C510-92, CSA B64.5, and ASSE 1015.

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Connections

  • This 8 inch double check valve assembly is designed for installation on main potable water lines to prevent backflow from non-health hazard cross-connections.
  • Features flanged connections in accordance with AWWA Class D dimensions.
  • It can be installed in either a horizontal or vertical "flow up" position, following the flow arrow on the assembly.
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Additional Details

This 8 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of non-potable water into the potable water supply. It is ideal for continuous pressure service at cross-connections identified as non-health hazards, protecting against backsiphonage and backpressure.

Features

  • Cam-Check Assembly provides low head loss for efficient operation.
  • Short lay length is ideal for retrofit installations in tight spaces.
  • Stainless steel body reduces installation and shipping costs by being half the weight of competitive designs.
  • Provides long-term corrosion protection and maximum strength with stainless steel construction.
  • Single top access cover with two-bolt grooved style coupling for ease of maintenance.
  • No special tools are required for servicing.
  • Compact construction allows for installation in smaller vaults and enclosures.
  • May be installed in horizontal or vertical "flow up" position (ASSE Only).
  • Includes domestic non-rising stem (NRS) resilient seated gate valves.

Specifications

  • Nominal Size: 8 inch
  • Main Valve Body: 300 Series stainless steel
  • All Internal Metal Parts: 300 Series stainless steel
  • Check Assembly Material: Noryl®
  • Lead Free: Yes (wetted surface contains less than 0.25% lead by weight)
  • Maximum Working Pressure: 175 psi (12.06 bar)
  • Temperature Range: 33°F - 110°F (5°C - 43°C)
  • Valve Type: Double Check Valve Assembly
  • Shutoff Valves: Domestic Non-Rising Stem (NRS) resilient seated gate valves
  • Installation: Horizontal or vertical "flow up"

Dimensions (8 inch)

  • Overall Length (A): 52 1/2 inches (1334 mm)
  • NRS Gate Valve Height (C): 19 15/16 inches (506 mm)
  • Diameter (D): 6 3/4 inches (171 mm)
  • Lay Length (L): 29 1/2 inches (749 mm)
  • Inlet/Outlet Connection to Ground (S): 13 1/2 inches (343 mm)

Weights (8 inch)

  • Weight With Gates: 566 lbs (256 kg)
  • Weight Without Gates: 169 lbs (77 kg)

Certificates & Approvals

  • AWWA Standard: C510-92
  • CSA Standard: B64.5
  • ASSE Standard: 1015

FAQs

What is the primary function of this 8 inch backflow preventer?

This 8 inch double check valve backflow preventer assembly is designed to prevent the reverse flow of non-potable water into the potable water supply system due to backsiphonage or backpressure. It is suitable for non-health hazard installations.

What materials are used in the construction of this backflow preventer?

The main valve body and all internal metal parts are constructed from durable 300 Series stainless steel for long-term corrosion protection. The check assembly is made of Noryl®, and the product is lead free, containing less than 0.25% lead by weight.

Can this backflow preventer be installed vertically?

Yes, this backflow preventer assembly is approved for both horizontal and vertical 'flow up' installation positions, in accordance with ASSE standards and the direction of the flow arrow on the assembly.

What is the maximum operating pressure and temperature range for this unit?

This assembly has a maximum working pressure of 175 psi (12.06 bar) and is designed to operate effectively within a temperature range of 33°F to 110°F (5°C to 43°C).

Are special tools needed for maintenance of this backflow preventer?

No, this backflow preventer is designed for easy maintenance. It features a single top access cover with a two-bolt grooved style coupling, and no special tools are required for servicing.