Steel Ball & Seat
| Part# | Description | Weight (kg) |
| SB40 | 4.0” Steel Ball | 0.95 |
| SB45 | 4.5” Steel Ball | 1.35 |
| BS40 | 4” OLIN Small Valve Seat | 0.80 |
| BS40G | 4” OLIN Seats With Gasket | 1.65 |
| BS45G | 4.5” OLIN Seats With Gasket | 1.40 |
| BS40C | 4” Casting Steel Ball Seat | 1.20 |
| BS45C | 4.5” Casting Steel Ball Seat | 1.70 |
