Three piece flange ball valve and gate valve belong to the same type of valve, with the difference being that their closing part is a sphere, which rotates around the centerline of the valve body to achieve opening and closing. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium.
| 1 | CAP | SS304/SS316/A105 | 9 | THRUST WASHER | PTFE |
| 2 | BOLT WASHER | SS304/SS | 10 | PACKING | PTFE |
| 3 | HEX NUT | SS304/SS | 11 | GLAND | SS304/SS |
| 4 | BOLT | SS304/SS | 12 | LOCATING PIECE | SS304/SS |
| 5 | BODY | SS304/SS316/A105 | 13 | HANDLE | SS304/SS |
| 6 | SEAT | PTFE | 14 | STEM NUT | SS304/SS |
| 7 | BALL | SS316/SS304/SS | 15 | PLASTIC COVER | PLASTIC |
| 8 | STEM | SS316/SS304/SS | 16 | DOWEL | SS304/SS |
Main Dimensions 
| DN | G | DN | D | L | W | H |
| 15 | 1/2" | 14 | 35 | 92 | 120 | 70 |
| 20 | 3/4" | 20 | 40 | 111 | 120 | 80 |
| 25 | 1" | 23 | 50 | 127 | 130 | 90 |
| 32 | 11/4" | 32 | 60 | 140 | 160 | 110 |
| 40 | 11/2" | 38 | 65 | 152 | 160 | 120 |
| 50 | 2" | 49 | 78 | 158 | 280 | 130 |
| End Connection | threaded (THD) / butt welded (BW) / socket welded (SW) |
| Pressure Rating | 150lb- 1500lb |
| Specification | 3/8"- 2" |
| Material | A105.F304.F304L.F316.F316L.F11.F22.F5.F9 |
| Executive Standard | API602 |
Note: The dimension of the connecting end can be designed according to customers' special requirements.
