Main Valve Assembly
AssemblyBuried compression valve at the barrel base: a rubber-faced disc drives down onto the seat ring to shut off the main, with a drain ring that opens the barrel to drain as it closes. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Main Valve Assembly
5 top-level lines as of r63332| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Valve Seat Ring | fire-hydrant-valve-seat-ring | 1× | 1 | · | part |
| 2 | Main Valve Disc | fire-hydrant-valve-disc | 1× | 1 | · | part |
| 3 | Valve Plunger | fire-hydrant-valve-plunger | 1× | 1 | · | part |
| 4 | Drain Ring | fire-hydrant-drain-ring | 1× | 1 | · | part |
| 5 | O-Ring Set | oring-set | 1× | 1 | · | part |