Torque Values RTJ (B16.5)

October 2, 2017 | Author: Dave Donohue | Category: Nut (Hardware), Screw, Mechanical Engineering, Building Engineering, Nature
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RECOMMENDED BOLT TORQUE REQUIREMENTS

For Ring Type Joint Gaskets

ASME B16.5

BOLT MATERIALS - ASTM A193 B7, B16 & ASTM A320 L7

CLASS 150

CLASS 300

Recommended Minimum Torque Values (Nm)

Recommended Minimum Torque Values (Nm)

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

½''

4

½

276

40

59

90

½''

4

½

276

40

59

90

¾''

4

½

276

40

59

90

¾''

4



276

79

116

178

1''

4

½

276

40

59

90

1''

4



276

79

116

178

1¼''

4

½

276

40

59

90

1¼''

4



276

79

116

178

1½''

4

½

276

40

56

90

1½''

4

¾

276

139

203

313

2''

4



276

79

116

178

2''

8



276

79

116

178

2½''

4



276

79

116

178

2½''

8

¾

276

139

203

313

3''

4



276

79

116

178

3''

8

¾

276

139

203

313

4''

8



276

79

116

178

4''

8

¾

276

139

203

313

5''

8

¾

276

139

203

313

5''

8

¾

310

156

229

352

6''

8

¾

276

139

203

313

6''

12

¾

310

156

229

352

8''

8

¾

276

139

203

313

8''

12



310

249

366

565

10''

12



276

221

325

502

10''

16

1

276

330

485

748

12''

12



276

221

325

502

12''

16

1⅛

276

479

708

1098

14''

12

1

276

330

485

748

14''

20

1⅛

276

479

708

1098

16''

16

1

276

330

485

748

16''

20



276

668

992

1543

18''

16

1⅛

276

479

708

1098

18''

24



276

668

992

1543

20''

20

1⅛

276

479

708

1098

20''

24



310

752

1116

1736

24''

20



276

668

992

1543

24''

24



310

1329

1988

3108

Please note: These torque values are only valid for the type of bolting, gasket and lubricant as specified. These torque values are indicative for general purpose applications. In cases where high temperature conditions, thermal or pressure cycling, vibration or severe misalignments are present, please contact Klinger Mzansi for advice.

Klinger Mzansi (Pty) Limited Tel: +27 (0)11 824 6300 | Fax: +27 (0)11 827 9142 Email: [email protected] | Website: www.klinger.co.za

Torque Procedure: 1. Ensure that all gasket sealing faces are clean and defect free. 2. Ensure that all friction bearing surfaces are clean and well lubricated. 3. Ensure that the gasket is of the correct material and size. 4. Ensure that initial flange alignment is within 1mm per 200mm diameter. 5. Hand tighten all nuts. 6. Torque nuts following a cross pattern in stages ie 30%, 60% and 100% of final torque value. 7. Do a final check pass in a clocklwise or anticlockwise direction at the final torque value. 8. The final flange alignment must be within 0.5mm. 9. Retorque as required for high temperature or cyclic applications.

RECOMMENDED BOLT TORQUE REQUIREMENTS

For Ring Type Joint Gaskets

ASME B16.5

BOLT MATERIALS - ASTM A193 B7, B16 & ASTM A320 L7

CLASS 600

CLASS 900

Recommended Minimum Torque Values (Nm)

Recommended Minimum Torque Values (Nm)

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

½''

4

½

276

40

59

90

½''

4

¾

276

139

203

313

¾''

4



276

79

116

178

¾''

4

¾

276

139

203

313

1''

4



276

79

116

178

1''

4



276

221

325

502

1¼''

4



310

89

130

200

1¼''

4



276

221

325

502

1½''

4

¾

276

139

203

313

1½''

4

1

276

330

485

748

2''

8



310

89

130

200

2''

8



276

221

325

502

2½''

8

¾

276

139

203

313

2½''

8

1

276

330

485

748

3''

8

¾

310

156

229

352

3''

8



310

249

366

565

4''

8



310

249

366

565

4''

8

1⅛

310

539

797

1235

5''

8

1

310

371

545

842

5''

8



310

752

1116

1736

6''

12

1

310

371

545

842

6''

12

1⅛

310

539

797

1235

8''

12

1⅛

310

539

797

1235

8''

12

1⅜

310

1014

1511

2356

10''

16



310

752

1116

1736

10''

16

1⅜

310

1014

1511

2356

12''

20



310

752

1116

1736

12''

20

1⅜

310

1014

1511

2356

14''

20

1⅜

310

1014

1511

2356

14''

20



345

1477

2209

3453

16''

20



310

1329

1988

3108

16''

20

1⅝

345

1893

2839

4447

18''

20

1⅝

310

1704

2555

4002

18''

20

1⅞

345

2951

4444

6984

20''

24

1⅝

310

1704

2555

4002

20''

20

2

345

3599

5430

8545

24''

24

1⅞

310

2656

4000

6286

24''

20



310

6410

9728

15369

Please note: These torque values are only valid for the type of bolting, gasket and lubricant as specified. These torque values are indicative for general purpose applications. In cases where high temperature conditions, thermal or pressure cycling, vibration or severe misalignments are present, please contact Klinger Mzansi for advice.

Klinger Mzansi (Pty) Limited Tel: +27 (0)11 824 6300 | Fax: +27 (0)11 827 9142 Email: [email protected] | Website: www.klinger.co.za

Torque Procedure: 1. Ensure that all gasket sealing faces are clean and defect free. 2. Ensure that all friction bearing surfaces are clean and well lubricated. 3. Ensure that the gasket is of the correct material and size. 4. Ensure that initial flange alignment is within 1mm per 200mm diameter. 5. Hand tighten all nuts. 6. Torque nuts following a cross pattern in stages ie 30%, 60% and 100% of final torque value. 7. Do a final check pass in a clocklwise or anticlockwise direction at the final torque value. 8. The final flange alignment must be within 0.5mm. 9. Retorque as required for high temperature or cyclic applications.

RECOMMENDED BOLT TORQUE REQUIREMENTS

For Ring Type Joint Gaskets

ASME B16.5

BOLT MATERIALS - ASTM A193 B7, B16 & ASTM A320 L7

CLASS 1500

CLASS 2500

Recommended Minimum Torque Values (Nm)

Recommended Minimum Torque Values (Nm)

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

Flange NPS

No of Bolts

Bolt Size

RBS (MPa)

µ=0.09 Copperslip

µ=0.14 Chesterton Nickle

µ=0.225 Unlubricated

½''

4

¾

276

139

203

313

½''

4

¾

345

173

254

392

¾''

4

¾

310

156

209

352

¾''

4

¾

345

173

254

392

1''

4



310

249

366

565

1''

4



379

304

447

691

1¼''

4



310

249

366

565

1¼''

4

1

379

453

666

1029

1½''

4

1

310

371

545

842

1½''

4

1⅛

379

659

974

1510

2''

8



345

277

407

628

2''

8

1

379

453

666

1029

2½''

8

1

310

371

545

842

2½''

8

1⅛

379

659

974

1510

3''

8

1⅛

345

599

885

1372

3''

8



345

835

1240

1929

4''

8



345

835

1240

1929

4''

8



379

1625

2430

3798

5''

8



345

1477

2209

3453

5''

8



379

2618

3935

6174

6''

12

1⅜

310

1014

1511

2356

6''

8

2

379

3958

5973

9399

8''

12

1⅝

345

1893

2839

4447

8''

12

2

379

3958

5973

9399

10''

12

1⅞

345

2951

4444

6984

10''

12



345

7122

10809

17077

12''

16

2

345

3599

5430

8545

12''

12



379

10502

15972

25272

14''

16



345

5161

7813

12321

16''

16



345

7122

10809

17077

18''

16



345

9547

14520

22974

20''

16

3

345

12431

18940

30005

24''

16



345

19888

30387

48235

Please note: These torque values are only valid for the type of bolting, gasket and lubricant as specified. These torque values are indicative for general purpose applications. In cases where high temperature conditions, thermal or pressure cycling, vibration or severe misalignments are present, please contact Klinger Mzansi for advice.

Klinger Mzansi (Pty) Limited Tel: +27 (0)11 824 6300 | Fax: +27 (0)11 827 9142 Email: [email protected] | Website: www.klinger.co.za

Torque Procedure: 1. Ensure that all gasket sealing faces are clean and defect free. 2. Ensure that all friction bearing surfaces are clean and well lubricated. 3. Ensure that the gasket is of the correct material and size. 4. Ensure that initial flange alignment is within 1mm per 200mm diameter. 5. Hand tighten all nuts. 6. Torque nuts following a cross pattern in stages ie 30%, 60% and 100% of final torque value. 7. Do a final check pass in a clocklwise or anticlockwise direction at the final torque value. 8. The final flange alignment must be within 0.5mm. 9. Retorque as required for high temperature or cyclic applications.

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