6 709DCDA-DOSY-GPM3/4

Item Number: 0389192
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$22,062.74
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • Size: 6 inch
  • Weight: 843.0 lb
  • Body Material: Cast iron with ArmorTek coating
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 110°F (continuous)
  • Bypass Meter: 3/4 inch with 5/8" x 3/4" bronze GPM meter
  • Shutoff Valves: Domestic OSY resilient seated gate valves
  • Certifications: UL Classified, FM Approved, ASSE 1048, AWWA C510
  • Check Valve Discs: Rubber

Description

The Watts 6 inch Series 709DCDA Double Check Detector Backflow Preventer Assembly is designed to prevent the reverse flow of fire protection system contaminants and non-potable water into a potable water supply. This unit features a robust cast iron body with advanced ArmorTek coating for superior corrosion resistance and includes domestic OSY shutoff valves. A 3/4 inch bypass with a 5/8" x 3/4" bronze gallons per minute meter allows for leak detection. It is UL Classified, FM Approved, and meets ASSE 1048 and AWWA C510 standards, providing reliable backflow protection for non-health hazard applications. Item number 0389192.

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Installation & Connections

  • The 6 inch Series 709DCDA Double Check Detector Assembly is designed for installation on fire protection systems connected to a potable water supply.
  • It is suitable for cross-connections identified as non-health hazards.
  • The unit is approved for both horizontal and vertical "flow up" installations.
  • Equipped with domestic outside stem and yoke (OSY) resilient seated gate valves for secure connections.
  • Features four test cocks for maintenance and system verification.
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Additional Details

The Watts 6 inch Series 709DCDA Double Check Detector Backflow Preventer Assembly is engineered to prevent the reverse flow of fire protection system substances and non-potable water into a potable water supply.

It is specifically designed for protection at cross-connections identified as non-health hazards, such as on fire protection systems and at the service line entrance.

Key Features

  • ArmorTek coating technology applied to internal and external surfaces for superior corrosion resistance against electrochemical and microbial-induced corrosion (MIC).
  • Fused epoxy coated cast iron body construction.
  • Includes domestic outside stem and yoke (OSY) resilient seated gate valves.
  • Features captured spring check valves and four test cocks.
  • A 3/4 inch bypass line with a gallons per minute (GPM) meter (5/8" x 3/4" bronze meter) detects underground leaks and unauthorized water usage.
  • Modular check design concept facilitates complete maintenance and assembly access.
  • Engineered for maximum flow at low pressure drop, offering compact design and easy maintenance.
  • No special tools are required for servicing.

NOTICE: The information contained herein is not intended to replace the full product installation and safety information available or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product. Inquire with governing authorities for local installation requirements.

Specifications

General

  • Product Size: 6 inch
  • Bypass Size: 3/4 inch
  • Bypass Meter: 5/8" x 3/4" bronze GPM meter
  • Flow Orientation: Horizontal and Vertical (flow up)

Materials

  • Body Material: Cast iron
  • Body Coating: ArmorTek powder coating (applied to internal and external surfaces)
  • Seat Material: Bronze
  • Disc Holder Material: Bronze
  • Trim Material: Stainless steel
  • Check Valve Disc Material: Rubber
  • Test Cocks Material: Bronze

Pressure & Temperature

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Temperature Range (Continuous): 33°F - 110°F (0.5°C – 43°C)
  • Temperature Range (Intermittent): 140°F (60°C)

Certificates & Approvals

  • UL Classified (US)
  • FM Approved
  • ASSE 1048
  • AWWA Standard C510
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California

Dimensions & Weight

  • Overall Length (A): 62 1/2 inches (1588 mm)
  • Weight with OSY Gates: 727 lbs (330 kg)

FAQs

What is the primary use of the Watts 709DCDA Double Check Detector Assembly?

It is primarily used to prevent the reverse flow of fire protection system substances and non-potable water into a potable water supply, especially in non-health hazard cross-connections.

What type of corrosion protection does this backflow preventer offer?

It features ArmorTek coating technology, a patented three-part advanced epoxy system, applied to internal and external surfaces to resist electrochemical corrosion and microbial-induced corrosion (MIC).

What is the purpose of the 3/4 inch bypass with a GPM meter?

The 3/4 inch bypass line, equipped with a 5/8" x 3/4" bronze gallons per minute (GPM) meter, is designed to detect underground leaks that cause unaccountable water loss and identify unauthorized water usage.

What are the key certifications and approvals for this 6 inch backflow preventer?

This assembly is UL Classified, FM Approved, and meets the basic requirements of ASSE 1048 and AWWA Standard C510. It is also approved by the Foundation for Cross-Connection Control and Hydraulic Research.

Can this backflow preventer be installed in both horizontal and vertical orientations?

Yes, the 6-inch Series 709DCDA assembly is approved for installation in both horizontal and vertical "flow up" orientations.

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