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Views: 88 Author: hong Publish Time: 2021-01-08 Origin: TFW VALVE
do you know? Many parts of the butterfly valve have a variety of optional materials, and the difference in materials is mainly related to the medium.
No. | Part Name | Material |
1 | Body | Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze |
2 | Disc | Al-Bronze/CF8M/Ductile iron/WCB |
3 | Seat | EPDM/PEFE/Buna/NBR/Hypalon |
4 | Stem | Carbon Steel/Stainless Steel314/Stainless Steel316 |
5 | Bushing | PTFE/Lubricating |
6 | O ring | EPDM/PEFE/Buna/NBR/Hypalon |
7 | Pin | SS316/SS416/SS304 |
2.Gate valve is also like this, many parts have a variety of optional materials, the difference in materials is mainly related to the medium pressure environment.
| NO. | Part Name | Material |
| 1 | Body | Cast Iron/Ductile Iron |
| 2 | Body Seat Ring | Brass |
| 3 | Wedge | Ductile Iron |
| 4 | Wedge Seat Ring | Brass |
| 5 | Stem Nut | Brass |
| 6 | Stem | Stainless Steel |
| 7 | Bonnet Bolt | Carbon Steel |
| 8 | Nut | Carbon Steel |
| 9 | Washer | Carbon Steel |
| 10 | Gasket | NBR |
| 11 | Bonnet | Cast Iron/Ductile Iron |
| 12 | O-Ring | NBR |
| 13 | Locating Ring | Brass |
| 14 | O-Ring | NBR |
| 15 | Bonnet Nut | Brass |
| 16 | Mini Pad | PTFE |
| 17 | Dust Ring | NBR |
| 18 | Wheel | Ductile Iron |
| 19 | Washer | Carbon Steel |
| 20 | Bolt | Carbon Steel |
3.The structure of the double-plate pair clamp check valve is relatively simpler.
| 1 | Body | Cast Iron, Ductile Iron |
| 2 | Plate | Ductile Iron+Ni, CF8, CF8M, Bronze |
| 3 | Spring | Stainless Steel |
| 4 | Hinge Pin | Stainless Steel |
| 5 | Plug | Canbon Steel |
| 6 | Body Bearing | PTFE |
| 7 | Spring Bearing | PTFE |
| 8 | Stop Pin | Stainless Steel |
| 9 | Eye Bolt | Canbon Steel |
| 10 | Body Seat | NBR, EPDM, Viton, Neoprene |
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