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Home » Products » Pipes & Pipe Fittings » Lap Joint Stub Ends

Lap Joint Stub Ends

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Product Code : 03

Product Specification

Lap Joint Stub Ends

Nominal Pipe size (NPS)

Outside Diameter at Barrel D

ANSI B 16.9 Long pattern length (2), (3), (7) F

MSS/SP-43 Short pattern length

Radius of Fillet (3) R

Diameter of Lap (4) G

Outside Diameter of Barrel

Min.

Nom.

Max

Min

Nom

Max

Min

Nom

Max

Min

Nom and max

Min

Nom and Max

Min

Max

1/2

20

21

22

74

76

78

49

51

53

2

3

34

35

20.55

27.76

3/4

26

27

28

74

76

78

49

51

53

2

3

42

43

25.88

28.09

1

32

33

34

100

102

104

49

51

53

2

3

50

51

32.61

34.95

1 1/4

41

42

43

100

102

104

49

51

53

4

5

63

64

41.38

43.59

1 1/2

47

48

49

100

102

104

49

51

53

5

6

72

73

47.47

49.94

















2

59

60

61

150

152

154

62

64

66

7

8

91

92

59.54

62.38

2 1/2

72

73

74

150

152

154

62

64

66

7

8

104

105

72.24

75.34

3

88

89

90

150

152

62

62

64

66

9

10

126

127

88.11

91.34

3 1/2

101

102

103

150

152

154

74

76

78

9

10

139

140

100.81

104.04

4

113

114

116

150

152

154

74

76

78

9

11

156

157

113.51

116.66

















5

140

141

144

201

203

205

74

76

78

9

11

185

186

140.51

144.35

6

167

168

171

201

203

205

87

89

91

11

13

215

216

167.49

171.27

8

217

219

221

201

203

205

100

102

104

11

13

269

270

218.29

222.07

10

270

273

277

252

254

256

125

127

129

11

13

322

324

272.26

277.19

12

321

324

328

251

254

257

149

152

155

11

13

379

381

323.06

327.99

















14

353

356

360

302

305

308

149

152

155

11

13

411

413

354.81

359.92

16

403

406

410

302

305

308

149

152

155

11

13

468

470

405.61

410.97

18

454

457

461

302

305

308

149

152

155

11

13

531

533

456.41

462.03

20

503

508

514

302

305

308

149

152

155

11

13

582

584

507.21

514.10

















22

554

559

565

302

305

308

149

152

155

11

13

639

641

558.01

564.90

24

605

610

616

302

305

308

149

152

155

11

13

690

692

608.81

615.70

General Notes

  • Dimensions are in millimeters
  • Sea table A1 for tolerances

Notes

  • The lap thickness T shall not be less than nominal pipe wall thickness
  • When short pattern stud ends are used with larger fanges in classes 300 and 600, and with most sizes in classes 900 and higher, and when long pattern stud ends are used with larger flanges in classes 1500 and 2500. It may be necessary to increase the length of the stub ends in order to avoid covering the weld with the flange. Such increases in length shall be a matter of agreement between the manufacturer and purchaser.
  • When special facings such as tongue and groove, male and female etc are employed, additional lap thickness must be provided and such additional thickness shall be in addition to the basic length F
  • These dimensions conform to the radius established for lap joint flanges in ASME/ANSI B 16.5, Pipe flanges and Flanged fittings.
  • This dimensions conforms to standard machined facings from shown in ASME/ANSI B 16.5. The back face of the lap shall be machined to conform to the surface on which it seats. Where ring joint facings are to be applied. use dimension K as given in ASME/ANSI B 16.5
  • Gasket face finish shall be in accordance with ASME/ANSI B 16.5 for raised face flanges
  • The long pattern shall be the standard when not specified by the purchaser. The short pattern shall be specified by the purchaser.
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