Flange Weights
 
Dimensions for Class 300 Flanges

Weight (L.B.S.)***

Flange Types

Pressure Class

Nom. Size Pipe

Weld Neck

Slip-On

Thd.

Lap Joint

Blind

Socket

300

 

1/2

2

1.5

1.5

1.5

2

3

3/4

3

2.5

2.5

2.5

3

3

1

4

3

3

3

4

3

11/4

5

4.5

4.5

4.5

6

4

11/2

7

6.5

6.5

6.5

7

6

2

8

7

7

7

8

7

21/2

12

10

10

10

12

10

3

18

13

14

14.5

16

13

31/2

20

16

16

16

21

 

4

26.5

23.5

24

24

28

 

5

36

29

31

26

37

 

6

45

36

36

38

48

 

8

69

56

56

55

79

 

10

100

77

80

88

122

 

12

142

113

110

139

183

 

14

206

159

164

184

241

 

16

249

210

220

234

315

 

18

306

253

280

305

414

 

20

369

307

325

375

515

 

24

579

490

490

530

800

 

All dimensions given in inches.

Dimensions & tolerances in accordance with ANSI B16.5. Carbon steel flanges mechanical properties and chemistry conform to ASTM A105.

Flanges are furnished faced, drilled and spot faced or back faced.

*1/16 in. raised face included in dimensions Q, Y and YY.

**Bolt hole diameter 1/8 in. larger than bolt diameter.

***Weights listed are approximate values.

**** To be specified by the customer.