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Flange Connection for Bonve Lobe Pumps 2019-03-20


Flange connection




Machinery industry standard JB/T81-94

PN 1.6MPa (16bar)

Inside nominal diameter(DN)

B

C

D1

D2

D3

f

n

L

10

10

14

40

60

90

2

4

14

15

15

14

45

65

95

2

4

14

20

20

16

55

75

105

2

4

14

25

25

18

65

85

115

2

4

14

32

32

18

78

100

140/135

2

4

18

40

40

20

85

110

150/145

3

4

18

50

50

22

100

125

165/160

3

4

18

65

65

24

120

145

185/180

3

4

18

80

80

24

135

160

200/195

3

8

18

100

100

26

155

180

220/215

3

8

18

125

125

28

185

210

250/245

3

8

18

150

150

28

210

240

285/280

3

8

23

175

175

28

240

270

310

3

8

23

200

200

30

265

295

340/335

3

12

23

225

225

30

295

325

365

3

12

23

250

250

32

320

355

405

3

12

26/25

300

300

32

375

410

460

4

12

26/25


State standard GB9119-2000

PN 1.6MPa (16bar)

Inside nominal diameter(DN)

B

C

D1

D2

D3

f

n

L

10

10

14

40

60

90

2

4

14

15

15

14

46

65

95

2

4

14

20

20

16

56

75

105

2

4

14

25

25

16

65

85

115

2

4

14

32

32

18

76

100

140

2

4

18

40

40

18

84

110

150

2

4

18

50

50

20

99

125

165

2

4

18

65

65

20

118

145

185

2

4

18

80

80

20

132

160

200

2

8

18

100

100

22

156

180

220

2

8

18

125

125

22

184

210

250

2

8

18

150

150

24

211

240

285

2

8

22

200

200

24

266

295

340

2

12

22

250

250

26

319

355

405

2

12

26

300

300

28

370

410

460

2

12

26


USA standard ASME/SNSL B16.5a-1992

CLASS 150 RF (PN2.0MPa)

Inside nominal diameter(DN)

B

C

D1

D2

D3

f

n

L

25

1

14

51

74.5

108

2

4

15

40

11/2

17

73

98.5

127

2

4

15

50

2

18

92

120.5

152

2

4

18

65

21/2

20

105

139.5

178

2

4

18

80

3

21

127

152.5

190

2

4

18

100

4

26

157

190.5

229

2

8

18

125

5

26

186

216

254

2

8

22

150

6

28

216

241.5

279

2

8

22

200

8

31

270

298.5

343

2

8

22

250

10

33

324

362

406

2

12

26

300

12

34

381

432

483

2

12

26


Japan flange details:

Whole stainless flange JIS B2212-B2214-1999



JIS 10K

Therefore

DN

D

K

L

Boltn-Th

d

f

C

100

210

175

19

8-M16

155

2

18

125

250

210

23

8-M20

185

2

20

150

280

240

23

8-M20

215

2

22

200

330

290

23

12-M20

265

2

22

250

400

355

25

12-M22

325

2

24

300

445

400

25

16-M22

370

3

24

350

490

445

25

16-M22

415

3

26

400

560

510

27

16-M22

475

3

28

450

620

565

27

20-M24

530

3

30

500

675

620

27

20-M24

585

3

30


JIS 20K

Therefore

DN

D

K

L

Boltn-Th

d

f

C

100

255

185

23

8-M20

160

2

24

125

270

225

25

8-M22

195

2

26

150

305

260

25

12-M22

230

2

28

200

350

305

25

12-M22

275

2

30

250

430

380

27

12-M24

345

2

34

300

480

430

27

16-M24

395

3

35

350

540

480

33

16-M30Í3

440

3

40

400

605

540

33

16-M30Í3

495

3

46

450

675

605

33

20-M30Í3

560

3

48

500

730

660

33

20-M30Í3

615

3

50


If system pipe is bigger than pump standard caliber, customer need to tell us while selecting pump model.


Yuyao Huatai Bonve Pumps Co.,Ltd

When you choose a Bonve pump, you not only get the pump, but you also get the advantage of Bonve's engineering expertise and years of application knowledge in your industry.

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