Easy installation and maintenance due to modular design
Description
The Watts Series 007DCDA 2 1/2 inch Double Check Detector Assembly Backflow Preventer safeguards potable water supplies from non-health hazard fire protection system substances. This robust unit features a fused epoxy coated cast iron unibody with advanced ArmorTek® corrosion-resistant coating. It includes a bronze 5/8" x 3/4" gallons per minute meter to detect leaks and unauthorized usage, aiding in water conservation and cost reduction. Designed for easy installation and maintenance with modular components and resilient seated OSY shutoff valves, it ensures reliable protection for fire sprinkler systems.
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Installation and Use
This double check detector assembly is designed for installation on fire protection systems when connected to a potable water supply.
The appropriate degree of hazard for installation is determined by the local authority having jurisdiction.
The 2 1/2 inch 007DCDA model can be installed in either a horizontal or vertical upward flow position.
It is equipped with resilient seated OSY shutoff valves and four test cocks for ease of connection and testing.
The Watts Series 007DCDA 2 1/2 inch Double Check Detector Assembly Backflow Preventer is designed to prevent the backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply.
This assembly incorporates a gallons per minute meter to detect ground leaks and unauthorized illegal taps, helping to reduce annual water expenses. Its modular check design facilitates simple and easy installation and maintenance.
Features
Fused epoxy coated cast iron unibody construction.
ArmorTek® coating technology resists corrosion of internals, including microbial-induced corrosion (MIC) and exposed metal substrate corrosion.
Equipped with resilient seated OSY shutoff valves and four test cocks.
Features two independently operating modular poppet-type check valves with captured springs and replaceable seats.
Replaceable seats without the use of special tools.
Designed for maximum flow at low pressure drop.
Compact design for ease of installation.
Design simplicity for easy maintenance, requiring no special tools for servicing.
Includes bronze body ball valve test cocks.
Furnished with a bronze 5/8" x 3/4" meter.
Single top entry cover secured by stainless steel bolts for internal check assembly access.
Specifications
Size: 2 1/2 inch
Body Material: Fused Epoxy Coated Cast Iron
Coating: ArmorTek® Powder Coating (applied to internal and external surfaces)
Seat Material: Bronze or Stainless Steel
Disc Material: Silicone
Spring Material: Stainless Steel
Meter Material: Bronze 5/8" x 3/4"
Shutoff Valves: Resilient Seated OSY (Outside Stem and Yoke)
Check Valve Type: Modular Poppet-type with captured springs
Temperature Range (Continuous): 33° F - 110° F (0.5° C - 43° C)
Temperature Range (Intermittent): 140° F (60° C)
Maximum Working Pressure: 175 psi (12.1 bar)
Flanged Connection: 150 pound ANSI/AWWA CL D
Certificates & Approvals
Standard: AWWA Standard C510
Standard: CSA B64.5
Standard: IAPMO PS 31
Approved: ASSE Std. 1048
Approved: cULus (OSY only)
Approved: Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
FAQs
What is the primary purpose of the Watts 007DCDA Double Check Detector Assembly?
Its primary purpose is to prevent the backflow of non-health hazard fire protection system substances, such as glycerin wetting agents or stagnant water, from entering the potable water supply.
How does this backflow preventer help detect leaks or unauthorized water use?
The assembly incorporates a bronze 5/8" x 3/4" gallons per minute (GPM) meter within its auxiliary bypass line, which allows for the detection of underground leaks and unauthorized water usage, helping to reduce unaccountable water costs.
What is ArmorTek® coating technology and why is it important?
ArmorTek® is a patented three-part advanced epoxy coating system applied to the cast iron components. It's crucial for resisting microbial-induced corrosion (MIC) and protecting exposed metal substrates, extending the life and reliability of the backflow preventer.
What is the maximum operating pressure and temperature range for this device?
This device has a maximum working pressure of 175 psi (12.1 bar). The continuous operating temperature range is 33° F - 110° F (0.5° C - 43° C), with an intermittent range up to 140° F (60° C).
Are special tools required for maintenance or replacing internal components?
No, the modular check design and replaceable seats are engineered for design simplicity and easy maintenance, meaning no special tools are required for servicing or seat replacement. Access to internal check assemblies is via a single top-entry cover.
