Armored Expansion Joint

A short armored rubber expansion joint for dredging pipelines where abrasion resistance, sealing and shock absorption are required.

Product Overview

A short armored rubber expansion joint for dredging pipelines where abrasion resistance, sealing and shock absorption are required.

Product Detail

The armored expansion joint combines a short rubber body with embedded wear-resistant rings, reinforcement layers and sandwich flanges. It is installed at pump connections, deck pipelines or other positions requiring compensation, sealing and vibration reduction under abrasive slurry conditions.

Features

  • Short flexible body for installation compensation
  • Wear-resistant rings for abrasive slurry service
  • Good shock absorption and sealing performance
  • Can be customized as reducing, offset or elbow type
  • Suitable for dredger pipelines and pump connection areas

Technical Parameters

ParameterSpecification
Nominal BoreDN500 – DN1200
Length0.3 m – 1 m
Working PressureUp to 2.5 MPa
Tolerable Vacuum-0.08 MPa
Wear Ring HardnessHB 350 – HB 500

Design Note

Customized specifications are available according to project requirements. Final design should be confirmed based on slurry density, pipeline layout, dredger type, pressure, bending radius and installation conditions.

Applications

Used at dredge pump connections, deck piping systems and pipeline joints requiring expansion compensation or vibration absorption.

Information Needed for Quotation

  • Nominal bore size, overall length and flange standard
  • Working pressure, test pressure and suction/vacuum requirement if applicable
  • Conveyed material: mud, sand, clay, silt, gravel, coral, ore or other slurry
  • Slurry density, solid content, particle size and abrasion condition
  • Pipeline arrangement: floating, submerged, shore, deck, pump inlet/outlet or bow blowing
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