Expansion Joint

Overview

Expansion joints are also known as bellow hose and compensator. They are designed primarily to reduce the vibration, movement, and noise of the piping system. The expansion joint is installed between the pump and pipeline connector, which is used to reduce the vibration.

  • Absorbing vibration and noise.
  • Compensates for misalignment.
  • High Wear-resistance, good flexibility.

Due to the different dredging conveyance, we usually have different requirements for the wear resistance of hoses. 

In order to meet the requirements of different dredging projects, Expansion joints are lined with rings and ceramics to improve the wear resistance. You can choose the appropriate type according to your need.

Rubber Expansion Joint

Armoured Expansion Joint

Ceramic Expansion Joint

Normal Diameter Length(mm) Axial displacment Horizontal movement(mm) Deflection angle
mm inch compression(mm) Extension(mm)
32 1 1/4 95 9 6 9 15°
40 1 1/2 95 10 6 9 15°
50 2 105 10 7 10 15°
65 3 115 13 7 11 15°
80 2 1/2 135 15 8 12 15°
100 4 150 19 10 13 15”
125 5 165 19 12 13 15°
150 6 180 20 12 14 15°
200 8 210 25 16 22 15”
250 10 230 25 16 22 15°
300 12 245 25 16 22 15°
350 14 255 25 16 22 15°
400 16 255 25 16 22 15°
450 18 255 25 16 22 15°
500 20 255 25 16 22 15°
600 24 260 25 16 22 15°
700 28 260 25 16 22 15°
800 32 260 25 16 22 15°
900 36 260 25 16 22 15°
1000 40 260 26 18 24 15°
1200 48 260 26 18 24 15°
dredging pipeline

If you have other dredging needs, we also provide customization of dredging products.

Testing

testing of expansion joint-3
testing of expansion joint-1
testing of expansion joint-2

From manufacture to inspection, we strictly follow ISO 28017:2011 Standards to ensure quality.

iso

Packaging

packaging of expansion joint-2
packaging of expansion joint-3
packaging of expansion joint-1

Looking for the most suitable dredging hoses?
We Nanjing Deers supply flexible solutions for dredge hoses at dredgers

Scroll to Top