ANSI PTFE Expansion Joints, 3 convolutes (Class 150)

Our PTFE Expansion Joints are highly flexible and provide compensation of vibrations and heat-induced expansion in your production line. PTFE Expansion Joints with 3 convolutes are the standard solution for most of the applications.

Flange materials:

  • carbon steel
  • stainless steel

Lining materials:

  • PTFE (virgin or conductive)

Flanges:

  • loose-loose

Other pressure ratings:

  • on request

Special features:

  • limit bolts/hole extensions
  • earthing stud/lug

Optional extras:

  • final painting

NPS

 

 

L

 

(mm)

Stroke

±

(mm)

Lateral offset

(mm)

Angular offset

 

max. (°)

Vacuum resistance

at

d4

 

(mm)

K

 

(mm)

smin

 

(mm)

a2

 

(mm)

No. of bolts

x

thread (UNC)

Weights

 

(ca. kg/pc.)

(10Pa)

max. (°C)

(10Pa)

max. (°C)

½“

37

6

4

14

-1.00

200

-

-

34.9

60.3

3.0

11.0

4 x ½“

1.0

¾“

37

6

4

14

-1.00

200

-

-

42.9

69.9

3.0

11.0

4 x ½“

1.3

1“

46

13

6

14

-1.00

200

-

-

50.8

79.4

3.0

11.0

4 x ½“

1.5

1¼“

46

13

6

14

-1.00

200

-

-

63.5

88.9

3.0

13.0

4 x ½“

2.0

1½“

46

13

6

14

-1.00

200

-

-

73.0

98.4

3.0

13.0

4 x ½“

2.3

2“

56

15

9

14

-1.00

200

-

-

92.1

120.7

4.0

16.0

4 x ⅝“

3.8

2½“

77

19

9

14

-1.00

200

-

-

104.8

139.7

4.0

16.0

4 x ⅝“

5.1

3“

77

25

13

14

-1.00

200

-

-

127.0

152.4

4.0

16.0

4 x ⅝“

5.7

4“

91

25

13

14

-1.00

200

-

-

157.2

190.5

5.0

20.0

8 x ⅝“

9.2

5“

111

25

14

14

-1.00

150

-

-

185.7

215.9

4.5

19.5

8 x ¾“

11.0

6“

130

28

14

14

-1.00

150

-

-

215.9

241.3

5.0

23.0

8 x ¾“

14.7

8“

137

28

14

14

-1.00

50

-0.80

150

269.9

298.5

5.0

25.0

8 x ¾“

23.5

10“

190

30

14

14

-0.93

45

-0.66

100

323.8

362.0

7.5

29.5

12 x ⅞“

33.1

12“

190

30

15

14

-0.85

45

-0.33

100

381.0

431.8

6.0

31.0

12 x ⅞“

55.1

14“

190

32

18

14

-0.85

45

-0.33

100

412.8

476.3

7.5

32.5

12 x 1“

69.4

16“

190

35

20

14

-0.85

45

-0.33

100

469.9

539.8

7.5

32.5

16 x 1“

65.4

18“

190

30

20

14

-0.66

45

-0.30

100

533.4

577.9

8.0

33.0

16 x 1⅛“

79.4

20“

190

30

25

14

-

-

-0.13

100

584.2

635.0

8.0

33.0

20 x 1⅛“

82.2

The above shown diagram is only valid at neutral position of the PTFE Expansion Joint with limit bolts in place. The types of travel stroke, lateral offset and angular offset are maximum allowable movements in only one direction. For superpositioned movement the single types of travel need to be limited. The figures stated are average and apply to room temperature.

Different nominal pipe sizes

and total lengths on request.

L = Total length

d4 = Raised face diameter

K = Bolt circle diameter

smin = Minimum flare thickness

a2 = Minimum length with loose flange and smin

Technical data valid for the pressure rating Class 150.
a
2 depends on construction type and lining thickness.