BF Kogyo Kaisha
BF Kogyo Kaisha SRp Series Butterfly Valves
Manufacturer: BF Kogyo Kaisha, Ltd.
Model: SRp Series
Features
- A valve made of steel plate corresponding to all flange standards.
- Face to face dimensions can be made to user specifications.
- It is particularly suitable for lines requiring large size valves such as those for waste gas in steel mills, heat ventilation air conditioning in power stations, and solvent recovery in chemical plants.
- Flanges
- Body
- Disc
- Body seat（SUS）
- Disc seat
Tight shut off seat construction
- Disc seat‐jointless seat rings.
- Disc seat‐exposed by tightening and contracted when bolts loosen.
- Seat contact width‐”T”, can be fine adjusted in position by tightening or loosing the retainer bolts.
- Variation to form the most suitable contact width to meet present flow pressure without unnatural friction, but keeping perfect sealing and torque for longer lasting sealline.
※In occasion of replacing disc seat, it can be easily replaced without removing valve itself from the pipe line.
Specifications
| Size | 650A～2400A |
|---|---|
| Working pressure | MAX 0.05MPa （Special MAX 0.5MPa） |
| Flanges | ANSI 、BS、AS、DIN、JIS、Special |
Standard materials（JIS code）
| Body | SS400、SUS304、SUS316、SUS316L |
|---|---|
| Disc | SS400、SUS304、SUS316、SUS316L |
| Shaft | SUS403、SUS304、SUS316、SUS316L |
Standard test pressure（hydraulic pressure）
| Body shell | Max. allowable pressure×1.5 |
|---|---|
| Seat | Max. allowable pressure×1.1 |
※The materials of the body, disc and shaft can be chosen freely as required.
Seat materials
| NBR | －10 ～80℃ |
|---|---|
| EPDM | －10 ～120℃ |
| FKM | －10 ～150℃ |
| PTFE | －20 ～180℃ |
