trunnion mounted ball valves feature: a full line product offering with valves ranging in 2"-42", ANSI classes 150LB - 2500LB, forged steel bolted or all welded body, close coupled trunnion block design for low operating torques, secondary seat sealant feature.Kojo API-6D valves are offered with self relieving seats or optional double piston sealing. Special seat compounds are also available. Each valve meets, API-6D, API 6FA and Nace requirements. Options include stem extensions, actuators, pipe pups and specialized coatings.
Trunnion mounted ball valves met all the requirements of API 6D as well as the other design codes;Minimum wall thickness comply with ASME B16.34. Valves are usually supplied with lever,gear box,actuator or bare shaft on customer request
Design & Manufacturing Standard:API 608, API 6D, ASME B16.34,
Face to face:ASME B16.10 ,API 6D,DIN 3202
Flange Connection Size:ASME B16.5, ASME B16.47, DIN 2543~2550, ASME B16.25
Butt Welding Size:ASME B16.25.
Test and inspection: API 6D, API 598
Standard Material Parts List
NO. | Description | Material | NO. | Description | Material |
1 | Seat Spring | 17-7PH/Inconel X-750Viton | 20 | Stem Thrust Bearing | Carbon Filled PTFE |
2 | Seat Seal | Viton, Buna N | 21 | Connector Seal | Viton, Buna N |
3 | Seat Retainer | C.S. W/ENP, F316 | 22 | Bolt | ASTM A 193-B7 |
4 | Seat Insert | Nylon, PEEK | 23 | Stem Seal | Viton, Buna N |
5 | Trunnion Pin | Carbon Steel | 24,32 | Stud | ASTM A 193-B7 |
6 | Trunnion Stud | ASTM A193-B7 | 25 | Stem Top Seal | PTFE, Graphite |
7 | Trunnion | Carbon Steel | 26 | Key | Carbon Steel |
8 | Trunnion Block | Carbon Steel | 27,38 | Injection Fitting | Carbon Steel, F316 |
9 | Bleed Valve | Carbon Steel | 28 | Stud | ASTM A193-B7 |
10 | Bleed Valve | Viton, Buna N | 29 | Indicator | AISI 304 |
11 | Body | Carbon Steel | 30 | Stem | C.S.W/ENP, F316 |
12,19 | Trunnion Bearing | Epoxy W/PTFE Lined | 31 | Gland | Carbon Steel |
13 | Body Seal | 316SS/Grafoil, Viton | 33 | Bonnet | Carbon Steel |
14,15 | Bolts/Nuts | B7/2H, B7M2HM | 32 | Handle | DI, C.S. |
16 | Ball Thrust Bearing | Carbon Filled PTFE | 35 | Gear Operator | DIor,OR CS.Case |
17 | Adapter | Carbon Steel | 36 | Nameplate | AISI 304 |
18 | Ball | C. S. W/ENP, F316 | 37 | Rivet | AISI 304 |