Manufacturer: BF Kogyo Kaisha, Ltd.
Model: SWp Series
Features
- A special structure is employed with two discs inside the valve.
- Water is trapped between the two discs completely shutting off gas flow in this butterfly water trap valve.
- It has an extensive track record of use in diverse gas lines of many steel works for emergency shutoff use.

- Flange
- Body
- Disc
- Body seat(SUS)
- Seat
Specifications
| Size | 250A~2400A |
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| Working pressure | ~0.05MPa |
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| Working temperature | ~150℃ |
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| Flanges | JIS、ANSI、DIN、AS、BS、Special |
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Standard materials( JIS code)
| Body | SS400、SUS304、SUS316、SUS316L |
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| Disc | SS400、SUS304、SUS316、SUS316L |
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| Shaft | SUS403、SUS304、SUS316、SUS316L |
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Standard test pressure
| Body shell | Fluid pressure×1.5 |
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| Seat | Fluid pressure×1.1 |
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Seat materials
| NBR | MAX 80℃ |
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| EPDM | MAX 120℃ |
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| FKM | MAX 150℃ |
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