The valve body adopts all-welded structure, thre will be no external leakage and other phenomena, the valve structurer is more compact, which is convenient for installation and construction.
Material of main parts | Serial number | name | Material Science | Name | Material |
| 1 | valve body | carbon steel | Body | Steel ST 37.0 |
| 1B | Flange (optional) | carbon steel R ST 37-2 | Flange(Option) | Steel R ST 37-2 |
| 2 | Welding end | carbon steel ST 37.0 | Welding end | Steel ST 37.0 |
| 3 | sphere | stainless steel CF8/SS 304 | Ball | Stainless steel CF8/SS 304 |
| 4 | valve seat | PTFE,20%C | Body seat | PTFE,20%C |
| 5 | Spare washer | 20Cr13 | Back-up ring | 20Cr13 |
| 6 | Butterfly gasket | 65Mn | Dise spring | 65Mn |
| 7 | Washer | Fluororubber | Intermediate ring | VITON |
| 8 | Stem | 20Cr13 | Stem | 20Cr13 |
| 9 | Wear block | PTFE,20%C | Friction packing | PTFE,20%C |
| 10 | O-ring | Fluororubber | O-ring | VITON |
| 11 | O-ring | Fluororubber | O-ring | VITON |
| 12 | Flat pad | carbon steel ST 37.0 | Washer | Steel ST 37.0 |
| 13 | Plastic pressure sleeve | carbon steel ST 37.0 | Bedding ste pressure | Steel ST 37.0 |
| 14 | platform | carbon steel ST 37.0 | Platform | Steel ST 37.0 |
Detailes 
Complaint
