The 6 inch AMES 3000SS Double Check Detector Backflow Preventer Assembly is designed for non-health hazard containment in fire protection systems. Its stainless steel body offers superior corrosion resistance and strength, with a compact design suitable for smaller vaults. Featuring OSY shutoffs, cam-check valves for low head loss, and a gallons per minute metered bypass, it effectively prevents reverse flow of fire protection substances into the potable water supply. This assembly is UL Classified and FM Approved, ensuring reliable performance in safeguarding water quality from backpressure and backsiphonage. Item number 0692736.
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Connections
This 6 inch double check detector backflow preventer assembly features flanged inlet and flanged outlet gate connections for secure installation.
Designed for integration into fire protection systems to prevent backflow of non-potable substances.
Approved for installation in both horizontal and vertical "flow up" positions (ASSE Only).
This 6 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backpressure and or backsiphonage in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on fire protection systems and from other contaminants found at the service line entrance.
Key Features
Cam-Check Assembly valve provides low head loss.
Short lay length is ideally suited for retrofit installations.
Stainless steel body is half the weight of competitive designs reducing installation and shipping cost.
Stainless steel construction provides long term corrosion protection and maximum strength.
Single top access cover with two-bolt grooved style coupling for ease of maintenance.
No special tools required for servicing.
Compact construction allows for smaller vaults and enclosures.
Furnished with 5/8" x 3/4" bronze meter (gpm or cfm) to detect underground leaks and unauthorized water use.
May be installed in horizontal or vertical "flow up" position (ASSE Only).
Includes an integrated supervisory switch as an option on each gate valve of the OS&Y model.
WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing, consult your local water authority, building, and plumbing codes.
Specifications
Size: 6 inch
Main Valve Body Material: 300 Series Stainless Steel
Internal Metal Parts Material: 300 Series Stainless Steel
Check Assembly Material: Noryl® Flange (AWWA Class D)
Connection Type: Flanged Inlet and Flanged Outlet (OSY FxF)
Maximum Working Pressure: 175 psi (12 bar)
Temperature Range: 33°F – 110°F (0.5°C – 43°C)
Bypass Meter: 5/8" x 3/4" Bronze Gallons per Minute (GPM)
Lay Length: 48 1/2 in (1232 mm)
Net Weight (With Gates): 395 lb (179 kg)
Certificates & Approvals
ASSE 1048
AWWA C510-92
CSA B64.5
UL 1469
UL Classified (OSY only)
FM Approved (sizes 2 1/2" – 10", OSY only)
USC Foundation for Cross-Connection Control and Hydraulic Research
FAQs
What is the primary use of this backflow preventer assembly?
This assembly is primarily designed for use in fire protection systems to prevent the reverse flow of non-potable fire protection substances into the potable water supply. It is intended for non-health hazard containment applications.
What type of connections does this 6-inch assembly have?
This 6-inch model features flanged inlet gate connections and flanged outlet gate connections, suitable for robust system integration. It also includes domestic OSY (Outside Stem and Yoke) shutoffs.
What is the maximum operating pressure and temperature range for this device?
The maximum working pressure for this backflow preventer is 175 psi (12 bar). It is designed to operate within a temperature range of 33°F to 110°F (0.5°C to 43°C).
What materials are used in the construction of this backflow preventer?
The main valve body and internal metal parts are constructed from 300 Series stainless steel for long-term corrosion protection. The check assembly uses Noryl® with flange dimensions in accordance with AWWA Class D.
How does the bypass meter function in this assembly?
The assembly is furnished with a 5/8" x 3/4" bronze gallons per minute (GPM) meter bypass, which is used to detect underground leaks and unauthorized water use within the system.
