Relief Valve Assembly
AssemblyDiaphragm-operated valve under the zone that opens to atmosphere whenever zone pressure rises to within 2 psi of inlet pressure. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Relief Valve Assembly
7 top-level lines as of r10238| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Relief Diaphragm | backflow-preventer-relief-diaphragm | 1× | 1 | · | part |
| 2 | Relief Valve Disc | backflow-preventer-relief-disc | 1× | 1 | · | part |
| 3 | Relief Valve Seat | backflow-preventer-relief-seat | 1× | 1 | · | part |
| 4 | Coil Spring | coil-spring | 1× | 1 | · | part |
| 5 | Relief Valve Cover | backflow-preventer-relief-cover | 1× | 1 | · | part |
| 6 | O-Ring Set | oring-set | 1× | 1 | · | part |
| 7 | Fastener Set | fastener-set | 1× | 1 | · | part |