Plate flat welding flange

Plate flat welded flanges are relatively common flanges. Because plate flat welded flanges have good comprehensive performance, they are widely used in chemicals, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, plumbing, fire protection, Basic projects such as electric power and shipbuilding.
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Market price
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Product description
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Product parameter

HG/T 20592-2009 PN2.5
plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

75

50

11

4

M10

12

18

15

15

21.3

18

80

55

11

4

M10

12

22.5

19

20

26.9

25

90

65

11

4

M10

14

27.5

26

25

33.7

32

100

75

11

4

M10

14

34.5

33

32

42.4

38

120

90

14

4

M12

16

43.5

39

40

48.3

45

130

100

14

4

M12

16

49.5

46

50

60.3

57

140

110

14

4

M12

16

61.5

59

65

76.1

76

160

130

14

4

M12

16

77.5

78

80

88.9

89

190

150

18

4

M16

18

90.5

91

100

114.3

108

210

170

18

4

M16

18

116

110

125

139.7

133

240

200

18

8

M16

20

143.5

135

150

168.3

159

265

225

18

8

M16

20

170.5

161

200

219.1

219

320

280

18

8

M16

22

221.5

222

250

273

273

375

335

18

12

M16

twenty four

276.5

276

300

323.9

325

440

395

22

12

M20

twenty four

328

328

350

355.6

377

490

445

22

12

M20

26

360

381

400

406.4

426

540

495

22

16

M20

28

411

430

450

457

480

595

550

22

16

M20

30

462

485

500

508

530

645

600

22

20

M20

30

513.5

535

600

610

630

755

705

26

20

M24

32

616.5

636

700

711

720

860

810

26

twenty four

M24

36

715

724

800

813

820

975

920

30

twenty four

M27

38

817

824

900

914

920

1075

1020

30

twenty four

M27

40

918

924

1000

1016

1020

1175

1120

30

28

M27

42

1020

1024

HG/T 20592-2009
PN6 plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

75

50

11

4

M10

12

18

15

15

21.3

18

80

55

11

4

M10

12

22.5

19

20

26.9

25

90

65

11

4

M10

14

27.5

26

25

33.7

32

100

75

11

4

M10

14

34.5

33

32

42.4

38

120

90

14

4

M12

16

43.5

39

40

48.3

45

130

100

14

4

M12

16

49.5

46

50

60.3

57

140

110

14

4

M12

16

61.5

59

65

76.1

76

160

130

14

4

M12

16

77.5

78

80

88.9

89

190

150

18

4

M16

18

90.5

91

100

114.3

108

210

170

18

4

M16

18

116

110

125

139.7

133

240

200

18

8

M16

20

143.5

135

150

168.3

159

265

225

18

8

M16

20

170.5

161

200

219.1

219

320

280

18

8

M16

22

221.5

222

250

273

273

375

335

18

12

M16

twenty four

276.5

276

300

323.9

325

440

395

22

12

M20

twenty four

328

328

350

355.6

377

490

445

22

12

M20

26

360

381

400

406.4

426

540

495

22

16

M20

28

411

430

450

457

480

595

550

22

16

M20

30

462

485

500

508

530

645

600

22

20

M20

30

513.5

535

600

610

630

755

705

26

20

M24

32

616.5

636

HG/T 20592-2009
PN10 plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

90

60

14

4

M12

14

18

15

15

21.3

18

95

65

14

4

M12

14

22.5

19

20

26.9

25

105

75

14

4

M12

16

27.5

26

25

33.7

32

115

85

14

4

M12

16

34.5

33

32

42.4

38

140

100

18

4

M16

18

43.5

39

40

48.3

45

150

110

18

4

M16

18

49.5

46

50

60.3

57

165

125

18

4

M16

19

61.5

59

65

76.1

76

185

145

18

8

M16

20

77.5

78

80

88.9

89

200

160

18

8

M16

20

90.5

91

100

114.3

108

220

180

18

8

M16

22

116

110

125

139.7

133

250

210

18

8

M16

22

143.5

135

150

168.3

159

285

240

22

8

M20

twenty four

170.5

161

200

219.1

219

340

295

22

8

M20

twenty four

221.5

222

250

273

273

395

350

22

12

M20

26

276.5

276

300

323.9

325

445

400

22

12

M20

26

328

328

350

355.6

377

505

460

22

16

M20

28

360

381

400

406.4

426

565

515

26

16

M24

32

411

430

450

457

480

615

565

26

20

M24

36

462

485

500

508

530

670

620

26

20

M24

38

513.5

535

600

610

630

780

725

30

20

M27

42

616.5

636

HG/T 20592-2009
PN16 plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

Groove width
b

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

90

60

14

4

M12

14

18

15

4

15

21.3

18

95

65

14

4

M12

14

22.5

19

4

20

26.9

25

105

75

14

4

M12

16

27.5

26

4

25

33.7

32

115

85

14

4

M12

16

34.5

33

5

32

42.4

38

140

100

18

4

M16

18

43.5

39

5

40

48.3

45

150

110

18

4

M16

18

49.5

46

5

50

60.3

57

165

125

18

4

M16

19

61.5

59

5

65

76.1

76

185

145

18

8

M16

20

77.5

78

6

80

88.9

89

200

160

18

8

M16

20

90.5

91

6

100

114.3

108

220

180

18

8

M16

22

116

110

6

125

139.7

133

250

210

18

8

M16

22

143.5

135

6

150

168.3

159

285

240

22

8

M20

twenty four

170.5

161

6

200

219.1

219

340

295

22

12

M20

26

221.5

222

8

250

273

273

405

355

26

12

M24

29

276.5

276

10

300

323.9

325

460

410

26

12

M24

32

328

328

11

350

355.6

377

520

470

26

16

M24

35

360

381

12

400

406.4

426

580

525

30

16

M27

38

411

430

12

450

457

480

640

585

30

20

M27

42

462

485

12

500

508

530

715

650

33

20

M30

46

513.5

535

12

600

610

630

840

770

36

20

M33

52

616.5

636

12

HG/T 20592-2009
PN25 plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

Groove width
b

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

90

60

14

4

M12

14

18

15

4

15

21.3

18

95

65

14

4

M12

14

22.5

19

4

20

26.9

25

105

75

14

4

M12

16

27.5

26

4

25

33.7

32

115

85

14

4

M12

16

34.5

33

5

32

42.4

38

140

100

18

4

M16

18

43.5

39

5

40

48.3

45

150

110

18

4

M16

18

49.5

46

5

50

60.3

57

165

125

18

4

M16

20

61.5

59

5

65

76.1

76

185

145

18

8

M16

22

77.5

78

6

80

88.9

89

200

160

18

8

M16

twenty four

90.5

91

6

100

114.3

108

235

190

22

8

M20

26

116

110

6

125

139.7

133

270

220

26

8

M24

28

143.5

135

6

150

168.3

159

300

250

26

8

M24

30

170.5

161

6

200

219.1

219

360

310

26

12

M24

32

221.5

222

8

250

273

273

425

370

30

12

M27

35

276.5

276

10

300

323.9

325

485

430

30

16

M27

38

328

328

11

350

355.6

377

555

490

33

16

M30

42

360

381

12

400

406.4

426

620

550

36

16

M33

46

411

430

12

450

457

480

670

600

36

20

M33

50

462

485

12

500

508

530

730

660

36

20

M33

56

513.5

535

12

600

610

630

845

770

39

20

M36×3

68

616.5

636

12

HG/T 20592-2009
PN40 plate flat welded steel pipe flange

Nominal size
DN

Outer diameter of steel pipe
A1

Connection size

Flange thickness
C

Flange inner diameter
B1

Groove width
b

A

B

Flange outer diameter
D

Bolt hole center circle diameter
K

Bolt hole diameter
L

Number of bolt holes
n (pieces)

Bolt
Th

A

B

10

17.2

14

90

60

14

4

M12

14

18

15

4

15

21.3

18

95

65

14

4

M12

14

22.5

19

4

20

26.9

25

105

75

14

4

M12

16

27.5

26

4

25

33.7

32

115

85

14

4

M12

16

34.5

33

5

32

42.4

38

140

100

18

4

M16

18

43.5

39

5

40

48.3

45

150

110

18

4

M16

18

49.5

46

5

50

60.3

57

165

125

18

4

M16

20

61.5

59

5

65

76.1

76

185

145

18

8

M16

22

77.5

78

6

80

88.9

89

200

160

18

8

M16

twenty four

90.5

91

6

100

114.3

108

235

190

22

8

M20

26

116

110

6

125

139.7

133

270

220

26

8

M24

28

143.5

135

6

150

168.3

159

300

250

26

8

M24

30

170.5

161

6

200

219.1

219

375

320

30

12

M27

36

221.5

222

8

250

273

273

450

385

33

12

M30

42

276.5

276

10

300

323.9

325

515

450

33

16

M30

48

328

328

11

350

355.6

377

580

510

36

16

M33

54

360

381

12

400

406.4

426

660

585

39

16

M36×3

60

411

430

12

450

457

480

685

610

39

20

M36×3

66

462

485

12

500

508

530

755

670

42

20

M39×3

72

513.5

535

12

600

610

630

890

795

48

20

M45×3

84

616.5

636

12

 

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