MAIN PARTS AND MATERIALS
NO. | PART NAME | MATERIAL |
| 1 | Body | Ductile iron |
| 2 | Seat | NBR |
| 3 | Stem | Stainless steel416 |
| 4 | Disc | Ductile iron with nylon coated |
| 5 | Short Bushing | PTFE |
| 6 | Long Bushing | PTFE |
| 7 | O ring | NBR/EPDM |
| 8 | Half Ring | Carbon Steel |
| 9 | Gasket | Carbon Steel |
| 10 | Snap Spring | Spring Steel |
The top flange standard conforms to ISO5211
The top flange of the valves can be applied to manual,worm gear, pneumatic and electric actuator.
The dimensions of D1 and n-M are the mounting specification,which can be China standard GB,ISO standard,ANSI standard,DIN standard,JIS standard,AS standard and BS standard.
The dimensions of D1 and n-M of wafer butterfly valve can be made of UNIVERSIAL type,including all of the above mentioned standards.
