Approvals: UL Classified, FM Approved, ASSE 1048, AWWA C510
Design: Modular for easy maintenance
Application: Fire protection systems (non-health hazard)
Description
This 4 inch Double Check Detector Backflow Preventer with a Gallons per Minute meter is engineered to prevent the backflow of non-health hazard fire protection system substances into potable water lines. Its cast iron body features ArmorTek® epoxy coating for superior protection against microbial-induced and electrochemical corrosion. The modular design simplifies maintenance. Equipped with a GPM meter, it detects underground leaks and unauthorized water usage, reducing costs. This model is supplied without shutoff valves and is UL Classified and FM Approved. Item number 0384662.
This 4 inch double check detector backflow preventer assembly prevents the reverse flow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a gallons per minute meter to detect ground leaks and unauthorized illegal taps, helping reduce unaccountable water costs.
The assembly features a fused epoxy coated cast iron body construction and modular check design to facilitate simple installation and maintenance. The integral ArmorTek® coating technology provides advanced protection against microbial-induced (MIC) corrosion and general metal substrate corrosion for internal and external surfaces.
Features
Body construction fused epoxy coated cast iron with ArmorTek® technology
Modular check design for easy maintenance and assembly access
Equipped with a gallons per minute (GPM) meter for leak and unauthorized tap detection
Replaceable bronze seats
Maximum flow at low pressure drop
Compact design for economy and performance
No special tools required for servicing
Designed without shutoff valves for specific applications
Corrosion Protection
Features ArmorTek® coating technology, a patented three-part advanced epoxy system, applied to internal and external surfaces.
Engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrate.
Delivers integrated protection against electrochemical corrosion and microbial-induced corrosion.
Specifications
Body Material: Cast iron
Coating: ArmorTek® powder coating (internal and external surfaces)
Seat Material: Bronze
Disc Holder Material: Bronze
Trim Material: Stainless steel
Check Valve Discs Material: Rubber
Test Cocks Material: Bronze
Size: 4 inch
Meter: 5/8 inch x 3/4 inch Bronze Gallons per Minute (GPM) Meter
Shutoff Valves: Not included (LF - Less Fittings)
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
AWWA Standard: C510
UL Classified
FM Approved
ASSE Standard: 1048
CSA Standard: CSA B64.4
Approved by Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
Approved for Horizontal Flow: Yes
Approved for Vertical Flow Up: Yes
FAQs
What is the primary function of this 4 inch backflow preventer?
Its primary function is to prevent the reverse flow of non-potable fire protection system substances, such as glycerin wetting agents or stagnant water, from entering the potable water supply line.
What is ArmorTek® coating technology?
ArmorTek® is a patented three-part advanced epoxy coating system applied to the internal and external cast iron components. It is designed to reduce microbial-induced corrosion (MIC) and protect exposed metal surfaces, extending the product's lifespan.
Does this backflow preventer come with shutoff valves?
No, this specific model (4 709DCDA-LF-GPM) is supplied without shutoff valves. It is designed for applications where separate shutoff valves are not required or are provided elsewhere.
What is the purpose of the gallons per minute (GPM) meter?
The integrated GPM meter allows the water utility to detect underground leaks that lead to wasted water and identify unauthorized water usage or illegal taps. This helps in controlling unaccountable water costs.
What are the maximum pressure and temperature ratings for this device?
This backflow preventer has a maximum working pressure of 175 psi (12.1 bar). The continuous temperature range is 33°F – 110°F (0.5°C – 43°C), with an intermittent temperature rating up to 140°F (60°C).
