2 1/2 LF709-DOSY

Item Number: 0792166
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$10,330.54
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Valve Size: 2 1/2 inch
  • Weight: 297.0 lb
  • Lead Free construction
  • Body Material: Cast iron with ArmorTek® epoxy coating
  • Shutoff Valves: Domestic OSY resilient seated gate valves
  • Replaceable stainless steel seats
  • Maximum flow at low pressure drop
  • Servicing: No special tools required
  • Maximum Operating Pressure: 175 PSI

Description

This 2 1/2 inch Lead Free Double Check Valve Backflow Preventer Assembly is designed to prevent polluted water from entering potable water systems in non-health hazard applications. It features a durable cast iron body with advanced ArmorTek® epoxy coating for superior corrosion resistance against microbial-induced and exposed metal substrate corrosion. Equipped with domestic Outside Stem and Yoke (OSY) resilient seated gate valves, two in-line check modules with captured springs, and replaceable stainless steel seats, this assembly ensures reliable performance and easy maintenance without special tools. It is ideal for continuous pressure piping systems, offering maximum flow at low pressure drop. Item 0792166.

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Installation & Compatibility

  • This double check valve assembly is designed for use in non-health hazard installations to prevent backflow of polluted water.
  • Consult your local authority having jurisdiction to determine specific installation requirements and approval for cross-connections.
  • Suitable for continuous pressure piping applications.
  • Approved for both horizontal and vertical flow up installation in 2 1/2 inch and 3 inch sizes when equipped with OSY gate valves.
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Additional Details

This 2 1/2 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and/or backpressure.

It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards.

Key Features

  • Features a compact modular design with a single access cover to facilitate easy maintenance and in-line repairs.
  • Constructed with an epoxy coated cast iron body for enhanced durability.
  • Utilizes domestic outside stem and yoke (OSY) resilient seated gate valves for reliable shutoff.
  • Includes two in-line independent positive seating check modules with captured springs for safety.
  • Replaceable check discs and seats for extended service life.
  • ArmorTek® coating technology, a patented 3-part advanced epoxy system, limits microbial induced (MIC) and exposed metal substrate corrosion.
  • Achieves maximum flow at low pressure drop.
  • No special tools are required for servicing.
  • Approved for vertical flow up installation.

Specifications

  • Valve Type: Double Check Valve Assembly
  • Size: 2 1/2 inch
  • Lead Free: Yes
  • Body Material: Cast Iron
  • Body Coating: Fused Epoxy (ArmorTek® Technology)
  • Shutoff Valves: Domestic Outside Stem and Yoke (OSY) Resilient Seated Gate Valves
  • Seat Material: Stainless Steel
  • Check Modules: Two In-line Independent, Positive Seating
  • Spring Assemblies: Captured
  • Maximum Working Pressure: 175 PSI (12.1 bar)
  • Temperature Range: 33°F – 110°F (0.5°C – 43°C) continuous

Certificates & Approvals

  • ASSE No. 1015
  • AWWA C510-92
  • CSA B64.5
  • UL Classified File No. EX3185
  • Approved by Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • FM Approved (for 2 1/2" and 3" horizontal and vertical "flow up" sizes with OSY gate valves)

FAQs

What is the primary purpose of this double check valve assembly?

This 2 1/2 inch Lead Free Double Check Valve Backflow Preventer Assembly is designed to prevent the reverse flow of polluted water from entering the potable water supply due to backsiphonage and/or backpressure in non-health hazard installations.

What is "Lead Free" construction?

Lead Free construction means the wetted surface of this product, which comes into contact with consumable water, contains less than 0.25% lead by weight, complying with Lead Free installation requirements.

What type of applications is this backflow preventer suitable for?

It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards. Local authority approval is required for specific installations.

What are the benefits of the ArmorTek® coating?

The ArmorTek® coating is a patented three-part advanced epoxy system applied to the cast iron body. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates from electrochemical corrosion.

Are special tools required for maintaining this assembly?

No, the simplified modular design concept and replaceable components mean that no special tools are required for servicing or complete maintenance and assembly.

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