API 6A 3-Piece Trunnion Ball Valves
SCV Valve manufactures some of the most dependable forged steel Ball Valves in the industry. Our products are manufactured and tested in accordance with respective API, ASME, and ANSI standards. With features such as double block and bleed capabilities, secondary sealant injections, and spring energized self relieving seats, the SCV design offers many features and options beneficial for oil, gas, and liquid applications making it one of the most preferred ball valves on the market.
External Trunnion: 2-1/16” - 13-5/8” 2000, 3000 & 5000 PSI
DESIGN & MANUFACTURING STANDARDS | |
---|---|
Basic Design | API 6A |
Wall Thickness | API 6A |
Face-to-Face Dimension | API 6A |
Flange End Dimension | API 6A |
Inspection & Testing | API 6A |
Fire Safe Design | API 607/BS 6755 |
Dimensional Data

Bill of Materials - Model E
No | Name Of Part | Materials |
---|---|---|
1 | Body | 4130 NQT |
2 | Ball | 410 SS NQT |
3 | Adapter | 4130 NQT |
4 | Stem | 410 SS NQT |
5 | Seat Ring | 410 SS NQT |
6 | Seat Insert | Devlon |
7 | Seat O-ring (2) | HNBR |
8 | Seat Seal | Graphoil |
9 | Gland | 4130 NQT |
10 | Gland Ring | 4130 NQT |
11 | Mounting Plate | 4130 NQT |
12 | Trunnion | 4130 NQT |
13 | Trunnion Bearing (2) | 316 SS/FIBREX |
14 | Thrust Washer | PEEK |
15 | Gland O-ring (2) | HNBR |
16 | Stem O-ring (2) | HNBR |
17 | Gland Gasket | Graphite/Stainless Steel |
18 | Adapter O-ring (2) | HNBR |
19 | Adapter Gasket | Graphite/Stainless Steel |
20 | Packing | Graphoil |
21 | Stud Bolt* | A320 L7M |
22 | Hex Nut* | A320 L7M |
23 | SHCS | A320 L7M |
24 | Anti-Static Spring | X-750 |
25 | Seat Spring | X-750 |
26 | Dowel Pin | Hardened Steel |
27 | Grease Fitting | 316 SS |
28 | Grease Fitting, BGH | 316 SS |
29 | Ball Check | 316 SS |
30 | NPT Plug | 316 SS |
31 | Vent Fitting | 316 SS |
32 | Stem Key | 1045 or Equal |
33 | Foot Plate* | Carbon Steel |
34 | Lift Plate* | Carbon Steel |
35 | Body Dowel Pin | Hardened Steel |
36 | Gear Operator | Carbon Steel |
37 | Handwheel | Carbon Steel |
38 | Trunnion Gasket | Graphite/SS |
39 | Trunnion O-ring (2) | HNBR |
Note: Materials also available in F321, F347, F51, F53, monel, inconel, incolloy and hastelloy. Metal-to-metal seated ball valve designs are available upon request. |

3-Piece Trunnion Mounted Ball Valves - API 6A
Sizes: 2-1/16" - 13-5/8"
Class: 2000 PSI
SIZE | BORE | END-TO-END | BODY DIMENSIONS | FLG WEIGHTS | |||
---|---|---|---|---|---|---|---|
F | A - RTJ | H1 | H2 | H3 | LBS/KG | ||
IN | 2-1/16 | 2.09 | 1 1 .625 | 4.44 | 6.50 | 8.90 | 68 |
IN | 2-9/16 | 2.59 | 14.125 | 5.22 | 7.28 | 9.68 | 79 |
IN | 3-1/8 | 3.22 | 14.125 | 5.56 | 8.69 | 11.09 | 119 |
IN | 4-1/16 | 4.28 | 17.125 | 6.50 | 9.56 | 11.96 | 218 |
IN | 5-1/16 | 5.16 | 22.125 | 8.69 | 12.19 | 14.59 | 598 |
IN | 7-1/16 | 7.16 | 26.125 | 9.47 | / | 15.59 | 697 |
IN | 9* | 8.00 | 29.785 | 10.25 | / | 24.25 | 1369 |
IN | 11* | 11.03 | 31.125 | 12.75 | / | 28.78 | 1696 |
IN | 13-5/8* | 13.66 | 33.125 | 15.88 | / | 31.84 | 2193 |
3-Piece Trunnion Mounted Ball Valves - API 6A
Sizes: 2-1/16" - 13-5/8"
Class: 3000 PSI
SIZE | BORE | END-TO-END | BODY DIMENSIONS | FLG WEIGHTS | |||
---|---|---|---|---|---|---|---|
F | A - RTJ | H1 | H2 | H3 | LBS/KG | ||
IN | 2-1/16 | 2.09 | 14.625 | 4.44 | 7.28 | 10.90 | 119 |
IN | 2-9/16 | 2.59 | 15.125 | 5.22 | 8.06 | 11.64 | 139 |
IN | 3-1/8 | 3.22 | 15.125 | 5.56 | 9.47 | 13.05 | 178 |
IN | 4-1/16 | 4.28 | 18.125 | 6.50 | 10.34 | 13.92 | 319 |
IN | 5-1/16 | 5.16 | 24.125 | 8.69 | 12.97 | 16.55 | 697 |
IN | 7-1/16 | 7.16 | 29.125 | 10.38 | / | 19.10 | 1247 |
IN | 9* | 9.00 | 33.85 | 11.125 | / | 27.65 | 1575 |
IN | 11* | 11.03 | 36.125 | 15.13 | / | 30.74 | 1846 |
IN | 13-5/8* | 13.66 | 39.125 | 17.15 | / | 33.80 | 2593 |
3-Piece Trunnion Mounted Ball Valves - API 6A
Sizes: 2-1/16" - 13-5/8"
Class: 5000 PSI
SIZE | BORE | END-TO-END | BODY DIMENSIONS | FLG WEIGHTS | |||
---|---|---|---|---|---|---|---|
F | A - RTJ | H1 | H2 | H3 | LBS/KG | ||
IN | 2-1/16 | 2.09 | 14.625 | 6.50 | 4.44 | 8.90 | 119 |
IN | 2-9/16 | 2.59 | 18.625 | 7.28 | 5.22 | 9.68 | 170 |
IN | 3-1/8 | 3.22 | 18.625 | 8.69 | 5.56 | 11.09 | 240 |
IN | 4-1/16 | 4.28 | 21.625 | 9.56 | 6.50 | 11.96 | 420 |
IN | 5-1/16 | 5.16 | 28.00 | 12.19 | / | 14.59 | 1190 |
IN | 7-1/16 | 7.16 | 33.125 | 14.80 | / | 17.20 | 1936 |
IN | 9* | 9.00 | 41.00 | 11.5 | / | 29.25 | 2880 |
IN | 11* | 11.03 | 42.125 | 16.63 | / | 32.78 | 3420 |
IN | 13-5/8* | 13.66 | 45.125 | 18.69 | / | 35.84 | 5120 |