Ball valves come in one, two, or three pieces. One piece ball valves are inexpensive and generally not repaired. Two or Three piece ball valves consist of two separate pieces, with the connection between them being either threaded or a bolt and flange assembly.
3 Pc Socket Weld Ball Valve
3 Pc Butt Weld Ball Valve
3 Pc Threaded Ball Valve
Two piece ball valves were also designed with maintenance in mind. The big difference between the two is that the body on the 3 piece valve can be taken out without disturbing the two end caps. A two-piece ball valve doesn't often allow this to happen, and it's not possible at all with a one piece ball valve.
Part Name | Material Option |
Body | ASTM A 351 CF8 / CF3 / CF 8M / CF 3M / ALLOY 20 / HAST B / HAST C / ASTM A 216 GR. WCB / IS 210 GR. FG 200 / 220 |
Body Connector | ASTM A 351 CF8 / CF3 / CF 8M / CF 3M / ALLOY 20 / HAST B / HAST C / ASTM A 216 GR. WCB / IS 210 GR. FG 200 / 220 |
Connector Seal | PTFE / GFT |
Ball Seat | PTFE / GFT |
Ball | AISI304/ AISI316 / AISI304L / AISI316L / ALLOY20 / HAST-B / HAST-C |
Stem | AISI304/ AISI316 / AISI304L / AISI316L / ALLOY20 / HAST-B / HAST-C |
Stem Seal | PTFE/GFT |
Gland Packing | PTFE |
Gland | AISI304/ AISI316 / AISI304L / AISI316L / ALLOY20 / HAST-B / HAST-C |
Gland Nut | SS-304 |
Lever | SS – 304/MS. Cd. PLATED |
Lever Nut | SS – 304/MS. Cd. PLATED |
Body Stuo | SS-304/ASTM A 193 Gr. B 7 |
Body Nut | SS-304/ASTM A 194 Gr. 2 H |
Lever Sleeve | PVC |