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Expansion Joints

We are leaders in the market for providing best range of Expansion Joints and PTFE Expansion Joints

Expansion Joints

Expansion Jointsare used for compensation of pipeline movements and vibrations Similar to a tyre it has layers of high-quality elastomers reinforced with steel wires and synthetic fabrics. The inner layer forms a tube that extends through the inside of the joint, and across the face of the end flanges. This layer is chemically compatible with regards to its abrasion resistance and temperature rating to the process material. The middle layer of the joint contains the bias-ply synthetic fabric reinforcement that gives the joint its form and pressure rating, with wires used for added strength.

The outer layer is environment compatible usually made of Neoprene, which allows the joint to stand up to contacts with oils, corrosion and weathering. Galvanized or stainless steel retaining rings are provided to protect the flange and distribute forces evenly.

RUBBER EXPANSION JOINTS : NYLON REINFORCED FABRIC WITH RUBBER (ANY GRADE)

Joints Size I.D. Inches

Recome-
nded F.F
Inhces

Flange O.D.
Inches

Bolt Circle Diam Inches

Bolt Holes

Number

Diam Inches

Ring
I.D.
Flange
Inches

Flange
Thickness
Inches

Max Working Pressure

Style
140

Style
150

Style
200

Deflection Limits
Inches

Comp-
ression

Exten-
sion

Lateral

1/2

3 1/2

2 3/8

9/16

1 5/8

1/2

165

200

7/16

1/4

1/2

3/4

3 7/8

2 3/4

9/16

1 7/8

1/2

165

200

7/16

1/4

1/2

4 1/4

3 1/8

5/8

2 3/8

9/16

165

200

7/16

1/4

1/2

1 1/4

4 5/8

3 1/2

5/8

2 5/8

9/16

165

200

7/16

1/4

1/2

1 1/2

3 7/8

5/8

2 7/8

9/16

165

200

7/16

1/4

1/2

4 3/4

3/4

3 5/8

9/16

165

200

7/16

1/4

1/2

2 1/2

5 1/2

3/4

4 1/8

9/16

165

200

7/16

1/4

1/2

7 1/2

3/4

4 5/8

9/16

165

200

7/16

1/4

1/2

7 1/2

3/4

5 7/8

9/16

165

200

7/16

1/4

1/2

8 1/2

7/8

6 7/8

9/16

140

200

7/16

1/4

1/2

9 1/2

7/8

7 7/8

5/8

140

200

7/16

1/4

1/2

13 1/2

11 3/4

7/8

9 7/8

3/4

140

100

190

7/16

1/4

1/2

14 1/4

12 1/8

3/4

140

100

190

7/16

1/4

1/2

14 1/2

3/4

140

100

190

11/16

3/8

1/2

18 3/4

1 1/8

16 1/2

7/8

130

11/16

3/8

1/2

23 1/2

21 1/4

1 1/8

18 1/2

7/8

110

11/16

3/8

1/2

22 3/4

1 1/4

20 1/2

7/8

110

11/16

3/8

1/2

27 1/2

1 1/4

22 5/8

110

13/16

3/8

1/2

29 1/2

27 1/4

1 3/8

24 5/8

100

13/16

7/16

1/2

29 1/28

1 3/8

26 5/8

100

15/16

7/16

1/2

34 1/4

31 3/4

1 3/8

28 7/8

15/16

1/2

36 12

1 3/8

30 7/8

15/16

1/2

38 3/4

1 3/8

32 7/8

15/16

1/2

43 3/4

40 1\2

1 5/8

15/16

1/2

42 3/4

1 5/8

15/16

1/2

50 3/4

47 1/4

1 3/4

15/16

1/2

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PTFE Expansion Joints

Expansion joints are used for compensation of pipeline movements and vibrations. PTFE Expansion Joints are used in highly conentrated acidlines, as PTFE is chemically inert & flexible. They are designed to withstand 10kg/cm of pressure with moulded steel ring on the each corrugation / arch with steel flanges at both ends.

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