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ASME B16.36-2006 ORIFICE FLANGE

Views:31     Author:Lily Guo     Publish Time: 2016-01-08      Origin:Site

ASME B16.36-2006  ORIFICE FLANGE

 Special Flanges are basically identical to standard flanges, but have a number of special features. Orifice flange is one special flange.





Orifice Flanges are intended for use instead of standard pipe flanges when an orifice plate or flow nozzle must be installed. Pairs of pressure "Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary.


On the image above a set Orifice Flanges is shown, where the tappings are sealed with a plug, and where a jack screw is machined. This jack screw is used to facilitate separating the flanges for inspection or replacement of the "Orifice Plate" and gaskets.


The range of orifice flanges covers all standard sizes and ranges, and all common flange materials.Flanges are available in Welding Neck, Slip On, and Threaded form, and are typically supplied with two ½" NPT tappings in each flange.

Notes:
ASME B16.36 covers Dimensions and dimensional tolerances from orifice flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following flanges:

Drawings and dimensions:




ASME B16.36-2006 ORIFICE FLANGES


CLASS 300

CLASS 600

CLASS 900

CLASS 1500

CLASS 2500


NOMINAL
PIPE SIZE

THICKNESS
MIN

LENGTH
THRU
HUB
W/NECK

THICKNESS
MIN

LENGTH
THRU
HUB
W/NECK

THICKNESS
MIN

LENGTH
THRU
HUB
W/NECK

THICKNESS
MIN

LENGTH
THRU
HUB
W/NECK

THICKNESS
MIN

LENGTH
THRU
HUB
W/NECK

NOMINAL
PIPE SIZE

MM

INCH

T

LTB

T

LTB

T

LTB

T

LTB

T

LTB

MM

INCH

25

1

36.6

83

36.6

83

38.1

90

38.1

90

38.1

99

25

1

40

1 1/2

36.6

86

36.6

86

38.1

96

38.1

96

44.5

118

40

1 1/2

50

2

36.6

86

36.6

86

38.1

109

38.1

109

50.8

134

50

2

65

2 1/2

36.6

89

36.6

89

41.3

112

41.3

112

57.2

150

65

2 1/2

80

3

36.6

89

36.6

89

38.1

109

47.7

124

66.7

175

80

3

100

4

36.6

92

38.1

109

44.5

121

54

131

76.2

197

100

4

150

6

36.6

100

47.8

124

55.6

147

82.6

178

108

280

150

6

200

8

39.7

112

55.6

140

63.5

169

92.1

220

127

325

200

8

250

10

46.1

118

63.5

159

69.9

191

108

261

165.1

426

250

10

300

12

49.3

131

66.5

163

79.2

207

123.9

290

184

171

300

12

350

14

52.4

143

69.9

172

85.9

220

133.4

305



350

14

400

16

55.6

146

76.2

185

88.9

223

146.1

318



400

16

450

18

58.8

159

82.6

191

101.6

236

162

334



450

18

500

20

62

162

88.9

197

108

255

177.8

363



500

20

600

24

68.3

169

101.6

210

139.7

299

203.2

413



600

24


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