This 6 inch double check detector backflow preventer assembly safeguards potable water from non-health hazard fire protection system substances. Constructed with a fused cast iron body and featuring OSY shutoffs, it's enhanced with ArmorTek® epoxy coating for superior internal and external corrosion resistance, including microbial induced corrosion (MIC). A built-in gallons per minute (GPM) meter detects ground leaks or unauthorized taps, helping reduce water expenses. With a maximum working pressure of 175 PSI and modular check design for easy maintenance, it ensures reliable performance for fire system applications. Item 0387082.
This 6 inch double check detector backflow preventer assembly is designed to prevent the backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a gallons per minute (GPM) meter to detect ground leaks and unauthorized illegal taps, helping to reduce annual water expenses.
Construction & Design
Features a fused epoxy coated cast iron body with outside stem and yoke (OSY) shutoffs.
Utilizes advanced ArmorTek® coating technology, a patented 3-part epoxy system, to resist corrosion of internals and limit microbial induced (MIC) and exposed metal substrate corrosion.
The modular check design facilitates simple and easy installation and maintenance.
Equipped with replaceable bronze seats for longevity.
Designed for maximum low pressure drop and compact performance.
Furnished with a ¾ inch x ¾ inch bronze meter.
Check Assembly Module
The check assembly features a modular design concept that facilitates complete maintenance and assembly by retaining the spring load.
Note: The first and second check valve spring modules are not interchangeable.
Specifications
Nominal Size: 6 inch
Body Material: Cast Iron
Coating: ArmorTek® Powder Epoxy 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: Bronze
Maximum Working Pressure: 175 PSI (12.1 bar)
Temperature Range (Continuous): 33°F – 140°F (0.5°C – 60°C)
Detector Meter: Gallons Per Minute (GPM) Bronze Meter (¾ inch x ¾ inch)
Certificates & Approvals
Standard: AWWA Standard C510
Certified By: UL Classified
Certified By: FM Approved
Certified By: ASSE
Certified By: CSA B64.4
FAQs
What is the primary function of the 6 inch double check detector backflow preventer?
Its primary function is to prevent the backflow of non-health hazard substances from fire protection systems into the potable water supply, ensuring water safety.
What kind of substances does this backflow preventer protect against?
This assembly specifically prevents the backflow of non-health hazard substances, commonly found in fire protection systems, from contaminating the drinking water supply.
What is the maximum working pressure for this backflow preventer?
The maximum working pressure for this 6 inch double check detector assembly is 175 PSI (12.1 bar).
What is the purpose of the gallons per minute (GPM) meter on this assembly?
The integrated GPM meter detects ground leaks and unauthorized water taps, which can help in reducing annual water expenses and monitoring system integrity.
What material is the body of the backflow preventer constructed from?
The body of this backflow preventer is constructed from durable fused epoxy coated cast iron, designed for long-lasting performance.
