Expansion Joints

Expansion Joints

Northeast Rubber, a Division of Niantic Seal Performance Materials group, is a custom fabricator and specialty distributor of Metal and Rubber Expansion Joints.

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  • Power Generation
  • Steam
  • Engine Exhaust
  • Plastic / FRP
  • Water & Waste Water
  • Marine
  • HVAC
  • Industrial Pumps
  • Vacuum Systems 

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Rubber PipeMaterials

  • Stainless steel, 304, 316, 321
  • Nickel based alloys
  • Titanium
  • Copper
  • Neoprene
  • Butyl
  • EPDM
  • Teflon 

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Performance Material Partners

With over 47 years of experience working with high-performance, tight tolerance sealing applications, Niantic Seal has worked with more than 100 top quality vendors worldwide. Our Performance Material Partners include:

  • American Boa
  • Microflex
  • Proco
  • Garlock  

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PipeCustomized Expansion Joints

Expansion joints absorb movement and vibration in systems that convey high temperature commodities such as steam or exhaust gases. A typical type of expansion joint for pipe systems is a bellows style which can be manufactured from metal (most commonly stainless steel), Teflon, or an elastomer such as Neoprene or EPDM.

A bellows is made up of a series of one or more convolutions, with the shape of the convolution designed to withstand the internal pressures of the pipe and flexible enough to accept the axial, lateral, and/or angular deflections.

Expansion joints are also designed for other criteria, such as noise absorption, anti-vibration, earthquake movement, and building settlement. Pipe expansion joints are also known as compensators, as they 'compensate' for thermal movement.


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Fabrication Capabilities

  • Welding
  • Brazing
  • Crimping
  • Swaging
  • Cleaning
  • Helium Leak Testing
  • PVC Coating 

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Value Add

Niantic Seal delivers superior sealing solutions by applying extensive technical expertise and fabrication capabilities to the world’s best sealing products.

  • Bar Coding
  • Custom Labeling
  • Custom Packaging
  • Custom Wrapping
  • EMI/RFI Testing
  • Hydro & Helium Hose Testing
  • Kit Assembly
  • Managed Inventory & Forecasting
  • Material Color Coding
  • Mil-Spec Packaging 

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Quality Standards

  • ISO 9001

  •  ITAR Registered

  •  SAE AS9100

  •  MIL STD 45662 for calibration

  •  ANSI ASQLZ 1.4-1993 for sampling procedures

  • MIL I 45208 for military inspection purposes

  • Welding per ASME Section IX Boiler/Pressure Vessel Code

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NahadFor additional information:

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