Stainless steel bellows

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Stainless steel bellows

Model: PCQ
Nominal diameter: DN15 ~ 4000mm
Nominal pressure: PN0.6 ~ 2.5MPa
Temperature: -40 ℃ ~ + 300 ℃
Main material: 304,316 L stainless steel, carbon
Medium: liquid, gas and other
Design criteria: GB / T12777-2008, GB / T14525-199
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Working principle

Stainless steel corrugated pipe is used to take advantage of the bellows effective elastic deformation of the elastic deformation to absorb the pipeline, pipe or container by the thermal expansion and contraction and other reasons dimensional changes arising from a compensation device, belonging to a compensation element. Absorption of axial, lateral, and angular displacements.


 Use

1, compensation absorption pipe axial, transverse, angular thermal deformation. 
 2, bellows expansion device to facilitate the installation and removal of the valve pipe. 
 3, absorbing equipment vibration, reduce the impact of equipment vibration on the pipeline. 
4, to absorb the earthquake, subsidence of the pipe deformation.

 

Structural materials

 1, bellows: stainless steel 304,316 L, 321, etc. 
 2, flange, take over: carbon steel, stainless steel 304,316 L, 321, etc. 
 3, rod bolts, nuts: carbon steel

 

Installation Precautions

 1, the medium chloride ion content ≤ 25PPM. 
 2, welding slag splash bellows. 
 3, must follow the product flow signs installed. 
 4, both ends of the bellows must be properly set guide bearing and fixed bearing. 
 5, does not allow the deformation of corrugated compensator to forcefully adjust the installation of pipe position error. 
 6, Do not use the installation rod or limit rod lifting. 
 7, after the installation is complete, remove the transport rod and limit rod with a yellow mark.

 

The main data

Nominal diameter

Wave number

Pressure level Mpa

Bellows effective area

Large outer diameter size

length

DN

0.25

0.6

1

1.6

2.5

cm2

mm

Flange (mm)

Take over (mm)

 

Axial compensation amount mm, f911 degrees N / ram

 

 

32

8

25/21

22/26

20/26

18/63

15/98

16

110

160/250

264/210

16

Nov-50

46/14

41/14

36/32

31/47

220

224/291

316/320

40

8

25/28

22/44

20/44

18/89

15/106

23

130

164/259

269/260

16

50/14

46/22

41/22

36/45

31/55

240

230/304

319/400

50

8

25/30

22/51

20/70

18/70

15/138

37

150

172/276

282/230

16

50/16

46/26

41/35

36/35

31/70

260

240/342

347/450

65

8

33/28

30/35

26/44

22/55

19/68

55

170

315/294

300/260

12

42/16

38/22

38/32

34/40

29/50

280

260/334

340/470

80

8

40/20

36/26

34/33

28/41

24/54

81

200

240/338

344/260

10

53/14

49/17

49/21

43/26

38/33

230

270/368

374/300

100

8

45/47

45/60

40/75

35/93

29/117

121

220

235/317

323/280

10

76/26

74/32

64/40

57/50

49/63

260

305/381

387/320

125

6

48/38

42/47

38/59

34/74

29/92

180

250

282/314

316/320

8

85/23

77/29

66/36

58/45

50/56

290

382/386

388/360

150

6

49/42

44/50

40/62

34/78

29/97

257

250

282/339

338/320

8

79/34

71/43

64/51

54/59

46/65

290

356/399

402/360

200

6

52/49

46/55

42/68

38/78

34/111

479

300

280/348

348/370

8

73/31

65/44

59/52

53/58

48/78

340

340/402

402/420

250

6

72/30

63/34

59/42

52/45

47/55

769

300

315/379

415/420

8

108/16

97/21

87/35

79/39

71/47

360

393/459

493/460

300

6

72/51

65/55

59/59

52/65

47/71

1105

340

366/427

466/488

8

108/32

97/35

87/37

79/41

71/45

400

464/525

564/520

350

6

72/58

65/62

59/67

52/74

47/81

1307

340

397/452

497/480

8

108/38

97/41

87/44

79/48

71/47

420

509/564

609/540

400

6

72/54

65/58

59/62

52/68

47/75

1611

340

412/478

512/480

8

108/36

97/39

87/43

79/47

71/52

420

522/588

622/560

450

6

108/32

97/35

87/37

79/41

71/45

1972

340

403/498

503/500

8

162/20

145/22

131/23

118/25

106/28

450

503/658

603/590

500

6

108/59

97/64

87/68

79/75

71/82

2445

340

431/523

531/500

8

162/34

145/37

131/39

118/43

106/48

450

531/665

631/600

600

6

108/74

97/80

87/85

79/94

71/103

3534

380

478/548

578/540

8

162/42

145/45

131/49

118/53

106/60

658/679

758/640

700

4

108/67

97/72

87/77

79/85

71/95

4717

1110

490

550

6

162/42

145/45

131/49

118/53

106/60

690

670

800

4

120/88

108/95

102/102

94/112

82/123

5822

1265

502

560

6

183/67

164/72

156/77

144/85

125/93

610

600

900

4

120/84

108/90

102/97

94/107

82/117

7620

1186

 

620

6

183/60

164/65

156/69

144/76

125/84

 

720

1000

4

120/91

108/98

102/105

94/166

 

9043

1286

 

690

6

183/59

164/65

156/71

144/81

 

 

790