ANSI PTFE Expansion Joints, 2 convolutes (Class 150)

Our PTFE Expansion Joints are highly flexible and provide compensation of vibrations and heat-induced expansion in your production line. The possible absorption of movement is increased by a higher number of convolutes.

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.)

(105 Pa)

max. (°C)

(105 Pa)

max. (°C)

½“

28

4

2

7

-1.00

200

-

-

34.9

60.3

3.0

11.0

4 x ½“

1.0

¾“

28

4

2

7

-1.00

200

-

-

42.9

69.9

3.0

11.0

4 x ½“

1.2

1“

35

6

3

7

-1.00

200

-

-

50.8

79.4

3.0

11.0

4 x ½“

1.5

1¼“

35

6

3

7

-1.00

200

-

-

63.5

88.9

3.0

13.0

4 x ½“

1.9

1½“

35

6

3

7

-1.00

200

-

-

73.0

98.4

3.0

13.0

4 x ½“

2.3

2“

40

6

3

7

-1.00

200

-

-

92.1

120.7

4.0

16.0

4 x ⅝“

3.7

2½“

57

9

5

7

-1.00

200

-

-

104.8

139.7

4.0

16.0

4 x ⅝“

5.0

3“

57

9

5

7

-1.00

200

-

-

127.0

152.4

4.0

16.0

4 x ⅝“

5.7

4“

67

13

6

7

-1.00

200

-

-

157.2

190.5

5.0

20.0

8 x ⅝“

9.0

5“

83

13

6

7

-1.00

150

-

-

185.7

215.9

4.5

19.5

8 x ¾“

10.8

6“

75

13

6

7

-1.00

150

-

-

215.9

241.3

5.0

23.0

8 x ¾“

14.2

8“

102

13

6

7

-1.00

50

-0.80

150

269.9

298.5

5.0

25.0

8 x ¾“

23.1

10“

145

15

6

7

-0.93

45

-0.66

100

323.8

362.0

7.5

29.5

12 x ⅞“

32.1

12“

145

20

10

7

-0.85

45

-0.33

100

381.0

431.8

6.0

31.0

12 x ⅞“

54.2

14“

145

20

10

7

-0.85

45

-0.33

100

412.8

476.3

7.5

32.5

12 x 1“

68.1

16“

145

25

10

7

-0.85

45

-0.33

100

469.9

539.8

7.5

32.5

16 x 1“

63.9

18“

145

25

10

7

-0.66

45

-0.30

100

533.4

577.9

8.0

33.0

16 x 1⅛“

77.6

20“

145

25

10

7

-0.20

45

-0.13

100

584.2

635.0

8.0

33.0

20 x 1⅛“

80.2

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.