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PTFE Spiral Wound Gasket

PTFE Spiral Wound Gasket

Description The spiral wound gasket is made of V-shape or W-shape metallic strip and non-metallic tape; the nonmetallic belt that are superimposing in turn and producing continuously. The metal strip is fixed on the beginning and the end of the gasket by the spot welding method. Performanceand...

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Product Details

Description

       The spiral wound gasket is made of V-shape or W-shape  metallic strip and non-metallic tape; the nonmetallic belt that are superimposing in turn and producing continuously. The metal strip is fixed on the beginning and the end of the gasket by the spot welding method.


Performanceand Characteristics

1.It has wide application, resistance to high temperatures and high pressures, and can be used under the condition of ultra low temperature or vacuum. Good anti-chemical corrosion can be designed by changing the gasket's material.

2.High stress compensation , when the working temperature, pressure charged frequently, it's seal performance is still stableand reliable.

3.Good seal ability.

4.Good tolerance for flange surface finish irregularities.

5.Easy installation, low gasket preloaded pressure .


Material & Structure


Cross section of Spiral wound gasket Common used


Common DIN standard size

Tongue face/ Groove face and Concave / Convex flange Basic-type gaskets (Type A) or with inner ring (Type B) Specification

1.png1-2.png

RF (Type C & Type D)


Nominal size

DN


Inner ring size

D1


Spiral part inner Diameter

D2min

Nominal pressure   PN


Gasket's thickness

T


Inner & outer thickness

t

16~40

63~160

16

25

40

63

100

160


Spiral Windings outer Diameter

D3max

 Outer Diameter  D4

10

18

24

34

34

46

56

4.5

3

15

22

28

38

38

51

61

20

27

33

45

45

61

72

25

34

40

52

52

71

82

32

43

49

61

61

82

88

40

49

55

67

67

92

103

50

61

70

86

86

107

113

119

65

77

86

102

106

127

138

144

80

90

99

115

119

142

148

154

100

116

128

144

148

162

168

174

180

125

143

155

173

179

192

194

210

217

150

170

182

200

206

218

224

247

257

200

222

234

254

258

273

284

290

309

324

250

276

288

310

316

329

340

352

364

391

388

300

328

340

364

368

384

400

417

424

458

458

350

381

393

417

421

444

457

474

486

512

-

400

430

442

470

476

495

514

546

543

572

-

450

471

480

506

-

555

564

571

-

-

-

500

535

547

575

-

617

624

628

-

-

-

600

636

648

676

-

734

731

747

-

-

-

700

720

732

766

-

804

833

-

-

-

-

800

820

840

874

-

911

942

-

-

-

-

900

920

940

974

-

1011

1042

-

-

-

-

1000

1020

1040

1084

-

1128

1155

-

-

-

-

1200

1220

1240

1290

-

1342

1365

-

-

-

-

1400

1420

1450

1510

-

1542

-

-

-

-

-

1600

1630

1660

1720

-

1764

-

-

-

-

-

1800

1830

1860

1920

-

1964

-

-

-

-

-

2000

2030

2060

2130

-

2168

-

-

-

-

-

Common used ASME standard size

Tongue face/ Groove face and Concave / Convex flangeBasic-type gaskets (Type A) or with inner ring(Type B) Specification


Nominal  Size


Inner ring

Diameter

D1

 Spiral Windings


Gasket's thickness

T


Thickness of inner ring

t

A

B

DN

NPS

Class300~Class2500

(PN50~PN420)

Class300~Class1500

(PN50~PN260)

Class2500(PN420)


Inner Diameter

D2


Outer Diameter

D3


Inner Diameter

D2


Outer Diameter

D3


Inner Diameter

D2


Outer Diameter

D3

15

1/2

14.3

25.4

34.9

25.4

34.9

20.6

34.9

4.5

3.0

20

3/4

20.6

33.3

42.9

33.3

42.9

27.0

42.9

25

1

27.0

38.1

50.8

38.1

50.8

31.8

50.8

32

11/4

34.9

47.6

63.5

47.6

63.5

41.3

63.5

40

11/2

41.3

54.0

73.0

54.0

73.0

47.6

73.0

50

2

52.4

73.0

92.1

73.0

92.1

60.3

92.1

65

21/2

63.5

85.7

104.8

85.7

104.8

76.2

104.8

80

3

77.8

108.0

127.0

108.0

127.0

95.3

127.0

100

4

103.2

131.8

157.2

131.8

157.2

120.7

157.2

125

5

128.6

160.3

185.7

160.3

185.7

146.1

185.7

150

6

154.0

190.5

215.9

190.5

215.9

171.5

215.9

200

8

203.2

238.1

269.9

238.1

269.9

222.3

269.9

250

10

254.0

285.8

323.9

285.8

323.9

273.1

323.9

300

12

303.2

342.9

381.0

342.9

381.0

330.2

381.0

350

14

342.9

374.7

412.8

374.7

412.8

-

-

400

16

393.7

425.5

469.9

425.5

469.9

-

-

450

18

444.5

489.0

533.4

489.0

533.4

-

-

500

20

495.3

533.4

584.2

533.4

584.2

-

-

600

24

596.9

641.4

692.2

641.4

692.2

-

-

Class 150~Class 600

RF-(Type C or Type D)  Specification 


Nominal Size

 Nominal pressure  Class(PN)


Gasket's thickness

T


Inner & outer thickness

t

Class150(PN20)

Class300(PN50)

Class600(PN110)

DN

NPS


Inner ring Diameter

D1


Spiral Windings

Inner Diameter

D2


Spiral Windings

Outer

Diameter

D3


Outer Diameter

D4


Inner ring Diameter

D1


Spiral Windings

Inner Diameter

D2


Spiral Windings

Outer

Diameter

D3


Outer Diameter

D4


Inner ring Diameter

D1


Spiral Windings

Inner Diameter

D2


Spiral Windings

Outer

Diameter

D3


Outer Diameter

D4

15

1/2

14.3

19.1

31.8

46.5

14.3

19.1

31.8

52.5

14.3

19.1

31.8

52.5

 

 

4.5

 

 

3.0

20

3/4

20.7

25.4

39.6

56.0

20.7

25.4

39.6

66.5

20.7

25.4

39.6

66.5

25

1

27.0

31.8

47.8

65.5

27.0

31.8

47.8

73.0

27.0

31.8

47.8

73.0

32

11/4

38.1

47.8

60.5

75.0

38.1

47.8

60.5

82.5

38.1

47.8

60.5

82.5

40

11/2

44.5

54.1

69.9

84.5

44.5

54.1

69.9

94.5

44.5

54.1

69.9

94.5

50

2

55.6

69.9

85.9

104.5

55.6

69.9

85.9

111.0

55.6

69.9

85.9

111.0

65

21/2

66.7

82.6

98.6

123.5

66.7

82.6

98.6

129.0

66.7

82.6

98.6

129.0

80

3

81.0

101.6

120.7

136.5

81.0

101.6

120.7

148.5

81.0

101.6

120.7

148.5

100

4

106.4

127.0

149.4

174.5

106.4

127.0

149.4

180.0

106.4

120.7

149.4

192.0

125

5

131.8

155.7

177.8

196.0

131.8

155.7

177.8

215.0

131.8

147.6

177.8

239.5

150

6

157.2

182.6

209.6

221.5

157.2

182.6

209.6

250.0

157.2

174.8

209.6

265.0

200

8

215.9

233.4

263.7

278.5

215.9

233.4

263.7

306.0

209.6

225.6

263.7

319.0

250

10

268.3

287.3

317.5

338.0

268.3

287.3

317.5

360.5

260.4

274.6

317.5

399.0

300

12

317.5

339.9

374.7

408.0

317.5

339.9

374.7

421.0

317.5

327.2

374.7

456.0

350

14

349.3

371.6

406.4

449.5

349.3

371.6

406.4

484.5

349.3

362.0

406.4

491.0

400

16

400.0

422.4

463.6

513.0

400.0

422.4

463.6

538.5

400.0

412.8

463.6

564.0

450

18

449.3

474.7

527.1

548.0

449.3

474.7

527.1

595.5

449.3

469.9

527.1

612.0

500

20

500.0

525.5

577.9

605.0

500.0

525.5

577.9

653.0

500.0

520.7

577.9

682.0

600

24

603.3

628.7

685.8

716.5

603.3

628.7

685.8

774.0

603.3

628.7

685.8

790.0

Class 900~Class 2500

RF-(Type C or Type D) Specification 

 

Nominal Size

 Nominal pressure Class(PN)

Gasket's thickness

T

 

Inner & outer thickness

t

Class900(PN150)

Class1500(PN260)

Class2500(PN420)

DN

NPS

 

Inner ring Diameter

D1

 

Spiral Windings

Inner Diameter

D2

 

Spiral Windings

Outer

Diameter

D3

 

Outer Diameter

D4

 

Inner ring Diameter

D1

Spiral Windings

Inner Diameter

D2

 

Spiral Windings

Outer

Diameter

D3

 

Outer Diameter

D4

 

Inner ring Diameter

D1

 

Spiral Windings

Inner Diameter

D2

Spiral Windings

Outer

Diameter

D3

 

Outer Diameter

D4

15

1/2

14.3

19.1

31.8

62.5

14.3

19.1

31.8

62.5

14.3

19.1

31.8

69.0

 

 

4.5

 

 

3.0

20

3/4

20.7

25.4

39.6

69.0

20.7

25.4

39.6

69.0

20.7

25.4

39.6

75.0

25

1

27.0

31.8

47.8

77.5

27.0

31.8

47.8

77.5

27.0

31.8

47.8

84.0

32

11/4

33.4

39.6

60.5

87.0

33.4

39.6

60.5

87.0

33.4

39.6

60.5

103.0

40

11/2

41.3

47.8

69.9

97.0

41.3

47.8

69.9

97.0

41.3

47.8

69.9

116.0

50

2

52.4

58.7

85.9

141.0

52.4

58.7

85.9

141.0

52.4

58.7

85.9

144.5

65

21/2

63.5

69.9

98.6

163.5

63.5

69.9

98.6

163.5

63.5

69.9

98.6

167.0

80

3

81.0

95.3

120.7

166.5

81.0

92.2

120.7

173.0

81.0

92.2

120.7

195.5

100

4

106.4

120.7

149.4

205.0

106.4

117.6

149.4

208.5

106.4

117.6

149.4

234.0

125

5

131.8

147.6

177.8

246.5

131.8

143.0

177.8

253.0

131.8

143.0

177.8

279.0

150

6

157.2

174.8

209.6

287.5

157.2

171.5

209.6

281.5

157.2

171.5

209.6

316.5

200

8

196.9

222.3

257.3

357.5

196.9

215.9

257.3

351.5

196.9

215.9

257.3

386.0

250

10

246.1

276.4

311.2

434.0

246.1

266.7

311.2

434.5

246.1

270.0

311.2

476.0

300

12

292.1

323.9

368.3

497.5

292.1

323.9

368.3

519.5

292.1

317.5

368.3

549.0

350

14

320.8

355.6

400.1

520.0

320.8

362.0

400.1

579.0

-

-

-

-

400

16

374.7

412.8

457.2

574.0

368.3

406.4

457.2

641.0

-

-

-

-

450

18

425.5

463.6

520.7

638.0

425.5

463.6

520.7

704.5

-

-

-

-

500

20

482.6

520.7

571.5

697.5

476.3

514.4

571.5

756.0

-

-

-

-

600

24

590.6

628.7

679.5

837.5

577.9

616.0

679.5

900.5

-

-

-

-

Q&A:

1. Q: Are you a factory or trading company?

A: We are a factory and have more than 20 years' manufacture & sales experience.

2. Q: Would you customize the products?

A: Yes, if customers need, we are glad to offer the customized service.

3. Q: How is quality ensured? 

A: All our processed strictly adhere to ISO9001:2008 procedures, we have strict quality control from producing to delivery.

4. Q: what's your company's payment term?

A: We normally accept the 30% deposit, and the balance before the shipment by T/T.

5. Q: How can I get some samples?

A: We are glad to offer samples to customers, samples is free if its value not above our regulatory cost limits, but the freight charges will be collected by customers.

6. Q: What's your delivery time? 

A: We have very big stockpile, for the regular order, our delivery time is 7~10days, for big order, our delivery time is 20~30 days.

7. Q: Do you have any certificates? 

A: Yes, we have ISO9001, ISO14001, SGS, RoHS and FDA.

Warehouse:






ptfe spiral wound gasket - CONCEPTFE, established in 1989, is known as one of the leading PTFE products manufacturer and suppliers. Welcome to buy cheap and customized products from our factory or check the price and quotation with us.

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