Backflow Preventers

The U.S. Embassy Kingston requires the supply and delivery of backflow preventers and spares for use at the Embassy compound. This is a commercial supply acquisition in accordance with FAR Part 12 and FAR Part 13.

The Contractor shall provide backflow preventers and service kits. The system should be certified to prevent contamination and require limited manual intervention and can be safely operated to minimize the impact on residence. The Contractor shall provide and deliver the following items :

14 Double-Check Valve Assembly (DCVA) Backflow Preventers with Installation Kit

2 x 1.5" Lead Free Double Check Valve Assembly
2 x 2" Lead Free Double Check Valve Assembly
2 x 2.5" Lead Free Double Check Valve Assembly with service kit
6 x 3" Lead Free Double Check Valve Assembly
4 x Service Kit for 3" Lead Free Double Check Valve Assembly
2 x 4" Lead Free Double Check Valve Assembly with service kit
1 x 6" Lead Free Reduce Pressure Zone Backflow Prevention Assembly with service kit

All specialized tools, and instructions required to complete installation

All certificates of applicable standards and codes

All calibration and commissioning instructions

The Government reserves the right to reject non-conforming products.

1. Mandatory Standards and Compliance

ASSE 1015/CSA B64.5/cUPC: The device must meet these standards for double check valve assemblies.
AWWA C510: Compliant with American Water Works Association standards for double check valve assemblies.
NSF/ANSI/CAN 61 & 372: Must meet lead-free requirements and safe drinking water standards.
Hazard Rating: Suitable only for non-health hazard (low hazard) applications.

2. Specifications (Technical Data)

Assembly Components: Must be factory assembled, including two check valves, two shutoff valves, and four test cocks.
Working Pressure: Minimum 175 psi (12.1 bar).
Temperature Range: 33°F to 180°F (0.5°C to 82°C).
Check Valve Type: Spring-loaded check valves.
Sizes: 3/4" to 2" bronze bodies, 2-1/2" to 10"...