| Single Detector Check Valve (Dual CV) |
| This device can be supplied with a water meter in bypass to account for small usage of water. Suitable for dedicated fire lines and combination fire and general service connections. | ||
| Sizes | DN80 to DN250 | |
| Hazard Rating | Low | |
| Must be registered | As per local authority | |
| Standard | Nil | |
| Testable | Yes, As per local authority | |
| Protection against back pressure and back-siphonage | Yes | |
| Testing & Maintenance requirements | As per local authority |
| Pressure & Temperature |  Working
Pressure: 1400kPa Test
Pressure: 2000kPa Maximum
Working Temperature: 70ºC (DN80 - DN250) |
| Specific Installation Requirements |
|
Not to be located in a corrosive or polluted atmosphere |
|
Insulation or other protection not to interfere with its operation, testing or maintenance |
|
May be located in pits, but not buried in the ground. |
|
Where water hammer occurs downstream, water hammer arrestor to be used. |
|
All devices to be readiliy accessible. |
|
No heat to be applied during installation. |
|
Approved resilient seated isolation valves to be installed immeadiately upstream, adjacent to device. |
|
Pipework to be flushed before connection. |
|
Specification The single detector check valve shall consist of a single positive seating, centre guided chck assembly. It shall have a field removable seal and seat assembly with an encapsulated spring. Acxcess is through an "O" ring sealed cover secured by stainless steel fasteners. The valve will be fusion bonded, epoxy coated internally and externally. - WATTS/RMC™ 7F-AUS9 OR EQUIVALENT |
Specifications |
Printable version of this Page |