Trunnion Ball Valve

Short Description:

Trunnion ball valves are manufactured with the features of double block and bleed (DBB), cavity relief, fire safe and secondary metal to metal seated etc. Trunnion ball valves are made in carbon steel, stainless steel and low temperature carbon steel and duplex steel.

Trunnion Ball Valve Catalogue

Key Specifications / Features

A trunnion ball valve has additional mechanical anchoring of the ball at the top and the bottom, suitable for larger and higher pressure valves. The trunnion stem absorbs the thrust from the line pressure, preventing excess friction between the ball and seats, so even at full rated working pressure operating torque remains low. Trunnion ball valves are bi-directional, application for oil & gas etc.

The trunnion ball valves are designed as API 6D, all the trunnion ball valves are 100% under hydrualic and penumatic test before leave the factory.

Standard Specifications:

Design and Manufacture

API 6D

Wall Thickness

API 6D

Face-to-Face Dimension

API 6D

Flange End Dimension

ANSI/ASME B16.5 (1” to 24”)

ANSI/ASME B16.47 (26” & up)

Butt-Weld End Dimension

ANSI/ASME B16.25

Inspection & Testing

API 6D/API 598

Fire Safe Design

API 607/BS 6755

Material

Nace MR 0175

Trunnion Ball Valve Design Features:

Double block and bleed

API 6D defines a double block and bleed valve as a "single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of vending/bleeding the cavity between the seating surfaces.”

When the ball is in the closed position, each seat seals off the process medium independently at the same time between the up/down stream and body cavity; it allows bleeding of the trapped cavity pressure (DBB) through drain or vent valve. The double block and bleed function makes it possible to flush the valve under pressure and verify that the seats are sealing properly.

Self Cavity Relief (Self Relieving Seat)

Trunnion ball valves constrain the ball by bearings. It is only allowed to rotate, but the ball seats can move. It also traps the media in the cavity when the operator closes the valve. It isolates the pipeline and the body cavity in the open and closed position. Thus, the pressure caught in the body cavity might be different from that in the line. The pressure increases in the cavity when heated. It pushes the ball seat of the downstream side away from the ball by rising pressure against the spring load. When this happens, the pressure gets released.

Secondary Metal to Metal Seat Design

Standard seat design is primary soft seal, and secondary metal to metal seal. Seat insert is designed as pressed-in type which is easy for maintenance. Optional design with primary metal to metal seal and secondary soft seal seat design is also available upon request.

Double Piston Effect Seats-DIB 1 (Optional Upon request)

Medium pressure, both upstream and downstream as well as in the body cavity, creates a resultant thrust that pushes the seat rings against the ball. Valves with double piston effect seat rings require a cavity pressure relief device to reduce the build-up of over pressure in the body cavity.

Trunnion Ball Valve Exploded View Drawings

Material Specifications

No.

Name of Part

A105/ENP

LF2/F316

F316/F316

1

Nut

A194 2H

ASTM A194 7

ASTM A193 B8

2

Bolt

A193 B7

ASTM A320 L7

ASTM A182 F316

3

Bonnet

ASTM A105

ASTM A320 LF2

ASTM A182 F316

4

Gasket

304+Graphite

304+Graphite

304+Graphite

5

O-Ring

Viton AED

Viton AED

Viton AED

6

O-Ring

Viton AED

Viton AED

Viton AED

7

Graphite

304+Graphite

304+Graphite

304+Graphite

8

Spring

Inconel X-750

Inconel X-750

Inconel X-750

9

Seat Ring

ASTM A105

A182 F316

A182 F316

10

Pin

Carbon Steel

Stainless Steel

Stainless Steel

11

Trunnion

ASTM A105

A182 F316

A182 F316

12

Bearing

Carbon Steel+Graphite

Carbon Steel+Graphite

Carbon Steel+Graphite

13

Gasket

304+Graphite

304+Graphite

304+Graphite

14

Ball

ASTM A105+ENP

A182 F316

A182 F316

15

Drain Plug

Carbon Steel

Stainless Steel

Stainless Steel

16

Ring

A105+ENP

Stainless Steel

Stainless Steel

17

Seal Ring

Viton AED

Stainless Steel

Stainless Steel

18

Seat Ring

PTFE, Nylon, PEEK

PTFE, Nylon, PEEK

PTFE, Nylon, PEEK

19

Feet

Carbon Steel

Carbon Steel

Carbon Steel

20

Injection Valve

Carbon Steel

Stainless Steel

Stainless Steel

21

Lifting Lug

Carbon Steel

Stainless Steel

Stainless Steel

22

Body

ASTM A105

A182 F316

A182 F316

23

Safety Valve

Carbon Steel

Carbon Steel

Carbon Steel

24

Relief Valve

Carbon Steel

Stainless Steel

Stainless Steel

25

Trunnion Bearing

Carbon Steel+Graphite

Carbon Steel+Graphite

Carbon Steel+Graphite

26

Stem

A182 F6A

A182 F316

A182 F316

27

Key

Carbon Steel

Carbon Steel

Carbon Steel

28

Thrust Washer

PTFE

PTFE

PTFE

29

O-Ring

Viton AED

Viton AED

Viton AED

30

Stuffing Box

ASTM A105

ASTM A350 LF2

ASTM A193 B8

31

Bolt

A193 B7

ASTM A320 L7

ASTM A193 B8

32

Packing

304+Graphite

304+Graphite

304+Graphite

33

Adapter

ASTM A105

ASTM A105

A182 F316

34

Bolt

A193 B7

ASTM A320 L7

ASTM A193 B8

35

Nut

A194 2H

ASTM A194 7

ASTM A194 8

36

Bolt

A193 B7

ASTM A320 L7

ASTM A193 B8

37

Worm Gear

Ductile Iron

Ductile Iron

Ductile Iron

Trunnion Ball Valve Dimensions & Weight Chart- API 6D

ANSI Class 150 (Dimensions & Weight)

Size

Minimum Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

mm

RF

BW

RTJ

(Kg)

2”

50

49

178

216

191

45

3”

80

74

203

283

216

80

4”

100

100

229

305

241

150

6”

150

150

394

457

406

248

8”

200

201

457

521

470

438

10”

250

252

533

559

546

701

12”

300

303

610

635

622

855

14”

350

334

686

762

699

1230

16”

400

385

762

838

775

1535

18”

450

436

864

914

876

2135

20”

500

487

914

991

927

2640

24”

600

589

1067

1143

1080

3980

26”

650

633

1143

1245

-

3200

28”

700

684

1245

1346

-

4045

30”

750

735

1295

1397

-

4820

32”

800

779

1372

1524

-

5490

34”

850

830

1473

1626

-

6704

36”

900

874

1524

1727

-

7615

ANSI Class 300 (Dimensions & Weight)

Size

Minimum Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

2”

50

49

216

216

232

31

3”

80

74

283

283

298

69

4”

100

100

305

305

321

110

6”

150

150

403

457

419

211

8”

200

201

502

521

518

376

10”

250

252

568

559

584

540

12”

300

303

648

635

664

763

14”

350

334

762

762

778

900

16”

400

385

838

838

854

1300

18”

450

436

914

914

930

1715

20”

500

487

991

991

1010

2090

24”

600

589

1143

1143

1165

2890

26

650

633

1245

1245

1270

3600

28

700

684

1346

1346

1372

4575

30

750

735

1397

1397

1422

5590

32

800

779

1524

1524

1553

6240

34

850

830

1626

1626

1654

7370

36

900

874

1727

1727

1756

8435

ANSI Class 400 (Dimensions & Weight)

Size

Minimum Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

4”

100

100

406

406

410

125

6”

150

150

495

495

498

232

8”

200

201

597

597

600

419

10”

250

252

673

673

676

594

12”

300

303

762

762

765

833

14”

350

334

826

826

829

990

16”

400

385

902

902

905

1430

18”

450

436

978

978

981

1890

20”

500

487

1054

1054

1060

2208

22”

550

589

1143

1143

1153

2420

24

600

633

1232

1232

1241

3150

26

650

684

1308

1308

1321

3810

28

700

735

1397

1397

1410

5010

30

750

779

1524

1524

1537

6190

32

800

830

1651

1651

1667

6820

34

850

874

1778

1778

1794

8010

36

900

874

1880

1880

1895

9250

ANSI Class 600 (Dimensions & Weight)

Size

Minimum

Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

2”

50

49

292

292

295

45

3”

80

74

356

356

359

80

4”

100

100

432

432

435

150

6”

150

150

559

559

562

248

8”

200

201

660

660

664

438

10”

250

252

787

787

791

701

12”

300

303

838

838

841

855

14”

350

334

889

889

892

1230

16”

400

385

991

991

994

1535

18”

450

436

1092

1092

1095

2135

20”

500

487

1194

1194

1200

2640

24”

600

589

1397

1397

1407

3960

26”

650

633

1448

1448

1461

28”

700

684

1549

1549

1562

6060

30”

750

735

1651

1651

1664

6690

32”

800

779

1778

1778

1794

7825

34”

850

830

1930

1930

1946

8460

36”

900

874

2083

2083

2099

10650

ANSI Class 900 (Dimensions & Weight)

Size

Minimum

Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

2”

50

49

368

368

371

52

3”

80

74

381

381

384

87

4”

100

100

457

457

460

160

6”

150

150

610

610

613

385

8”

200

201

737

737

740

560

10”

250

252

838

838

841

820

12”

300

303

965

965

968

1125

14”

350

322

1029

1029

1038

1610

16”

400

373

1130

1130

1140

2010

18”

450

423

1219

1219

1232

2810

20”

500

471

1321

1321

1334

3460

24”

600

570

1549

1549

1568

5497

26”

650

617

1651

-

1673

7500

30”

750

712

1880

-

1902

11442

36”

900

855

2286

-

2315

20154

ANSI Class 1500 (Dimensions & Weight)

Size

Minimum

Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

2”

50

49

368

368

371

60

3”

80

74

419

419

422

115

4”

100

100

546

546

549

194

6”

150

144

705

705

711

580

8”

200

192

832

832

841

752

10”

250

239

991

991

1000

1195

12”

300

287

1130

1130

1146

1970

14”

350

315

1257

1257

1276

2250

16”

400

360

1384

1384

1407

2760

18”

450

406

1537

-

1559

3646

20”

500

454

1664

-

1686

4497

24”

600

546

-

-

1972

7151

ANSI Class 2500 (Dimensions & Weight)

Size

Minimum

Bore

Face to face & end to end dimensions

(mm)

Weight

Inch

DN

(mm)

RF

BW

RTJ

(Kg)

2”

50

42

451

451

454

90

3”

80

62

578

578

584

200

4”

100

87

673

673

683

385

6”

150

131

914

914

927

778

8”

200

179

1022

1022

1038

1352

10”

250

223

1270

1270

1292

2137

12”

300

265

1422

1422

1445

3267

Torque Value
Torque Value Class 150-600

Size

Class 150

Class 300

Class 600

Inch

mm

N.m

ISO 5211

N.m

ISO 5211

N.m

ISO 5211

2”

50

40

F07

75

F07

115

F07

2 1/2”

65

60

F07

105

F07

290

F10

3”

80

85

F07

150

F07

450

F10

4”

100

160

F10

400

F10

850

F12

6”

150

450

F12

780

F12

1300

F14

8”

200

720

F12

1250

F14

3200

F16

10”

250

1200

F14

2020

F16

5200

F25

12”

300

2000

F16

3300

F16

7200

F25

14”

350

2800

F16

5000

F25

9500

F30

16”

400

4000

F25

7200

F25

15000

F30

18”

450

6200

F25

11000

F30

19500

F35

20”

500

7500

F25

13500

F30

29000

F35

22”

550

9000

F30

16000

F30

-

-

24”

600

13000

F30

19600

F35

42500

F40

26”

650

13500

F30

24500

F35

48000

F40

28”

700

14500

F30

28200

F35

55000

F40

30”

750

18000

F35

29000

F35

60000

F40

32”

800

24000

F35

32000

F35

82000

F48

34”

850

26000

F35

43000

F40

-

-

36”

900

28000

F35

54500

F40

111000

F48

40”

1000

35000

F40

65800

F40

125000

F48

42”

1050

39000

F40

75000

F48

148000

F60

44”

1100

47000

F40

-

-

-

-

46”

1150

-

-

-

F48

16000

F60

48”

1200

65000

F48

120000

F48

185000

F60

50”

1250

71500

F48

-

-

-

-

56”

1400

-

-

189000

F60

-

F60

Torque Value Class 900-2500

Size

Class 900

Class 1500

Class 2500

Inch

mm

N.m

ISO 5211

N.m

ISO 5211

N.m

ISO 5211

2”

50

150

F10

470

F10

700

F12

2 1/2”

65

400

F10

700

F12

-

-

3”

80

550

F12

810

F12

1400

F14

4”

100

1200

F14

1500

F14

2500

F16

5”

125

2150

F16

3150

-

-

-

6”

150

2400

F16

3450

F16

6200

F25

8”

200

4680

F25

7200

F25

14000

F30

10”

250

6840

F25

9850

F30

19500

F35

12”

300

9595

F30

12750

F30

25000

F35

14”

350

11500

F30

21000

F35

36000

F40

16”

400

16500

F35

34500

F40

52000

F40

18”

450

24000

F35

45500

F40

75000

F48

20”

500

33800

F40

58350

F40

98000

F48

22”

550

45000

F40

-

-

-

-

24”

600

55500

F40

82500

F48

-

-

26”

650

65000

F40

100000

F48

-

-

28”

700

75000

F48

116000

F48

-

-

30”

750

85000

F48

-

-

-

-

32”

800

98000

F48

-

-

-

-

Trunnion Ball Valve Flow Coefficient (Cv)

Size

Class 150

Class 300

Class 600

Class 900

Class 1500

Class 2500

Inch

DN

2”

50

381

381

381

381

381

283

3”

80

845

845

845

845

845

600

4”

100

1523

1523

1523

1523

1523

1160

6”

150

3381

3381

3381

3381

3120

2590

8”

200

6031

6031

6031

6031

5508

4795

10”

250

9442

9442

9442

9442

8500

7410

12”

300

13614

13614

13614

13614

12223

10433

14”

350

16621

16621

16621

15363

14800

-

16”

400

21920

21920

21920

20581

19178

-

18”

450

28076

28076

28076

26435

24243

-

20”

500

34995

34995

34995

32743

30565

-

22”

550

42676

42676

42676

40184

35860

-

24”

600

51117

51117

51117

47884

41733

-

26”

650

59012

59012

59012

56076

-

-

28”

700

68872

68872

68872

65110

-

-

30”

750

79493

79493

79493

74610

-

-

32”

800

89268

89268

89268

84977

-

-

34”

850

101307

101307

101307

96020

-

-

36”

900

112306

112306

112306

107487

-

-

40”

1000

139982

139982

139982

-

-

-

Featured Trunnion Ball Valves

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Tel: + 86-577-86373155, E-mail: export@reliavalve.com