DAIS GLOBAL: Industrial equipment, tank truck equipment, hoses, fittings, fuel service station equipment
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> Quick couplers
> Hose fittings
> Breakaways
> Dry Disconnect couplers
> Swivel Joints
> Nippels
> Tank truck equipment
> Bulk truck equipment
> LPG truck equipment
> Food truck equipment
> Chemi truck equipment
> ADR signs
> Gas station
> LPG station
> CNG station
> Service equipment
> Adblue equipment
> Reels & Grounding
> Level measuring systems
> Transfer pumps
> Industrial Pumps & compressors
> Flow meters
> Loading Arms
> Hoses
> Compensators
> Butterfly valves
> Ball valves
> Sight flow indicators
> Swivel Joints
> Breakaways
> Digital control valves
> Aviation
> Military
> Chemical Industry
> Soap Industry
> Manufacture of paints
> Chlorine
> Oil Terminal
> LPG Terminals
> Transportation of LPG
> Transport of chemicals
> Transport of bulk
> Tank trucks
> Rail Way tanks
> Bunkering
> American Coalition for Ethanol (ACE)
> Association of American Railroads (AAR)
> Chlorine Institute
> Federal Railroad Administration (US)
> ILTA (Independent Liquid Terminals Association)
> NAHAD (Association for Hose and Accessories Distribution)
> NPGA (National Propane Gas Association)
> NTTC (National Tank Truck Carriers)
> National Transportation Safety Board (US)
> RFA (Renewable Fuels Association)
> Railway Association of Canada (RAC)
> Railway Supply Institute (RSI)
Expansion Joints
Home > Expansion Joints
Rubber expansion joints / compensators are used as flexible connectors within pipe systems. Based on the German expression "Elastische Rohrverbinder" the type brand ERV® is being used.
ERV are single sphere type rubber expansion joints within swiveling metal flanges. The high quality bellows are produced in a mould. Starting fourty years ago, construction and length of ERV expansion joints have become reckognised standards worldwide.

Problem Solvers within Pipe Systems
  • • ERV are distinguished by a large axial, lateral and angular range of allowable movement, low reaction forces and low inherent resistance.
  • • ERV are used to absorb tensions caused by temperature changes (thermal expansion), and equalize structural settling such as basement subsiding or ground movements.
  • • They are suitable as a pipe insert / expansion piece to
    facilitate inspections of valves or other devices.
  • • ERV are perfect noise dampeners and ideally qualified to reduce vibrations. The major part of the piping's structure-borne noise and the low-frequency noise generated by fluids is eliminated.

  • • "Better safe than sorry": ERV serve to equalise assembly inaccuracies. If ERV are provided for during the planning phase there will be less problems during installation caused by inaccuracy. This saves costs.
  • • Quality production: only premium quality bellows exclusively made for us by ContiTech, Germany are used. Both ELAFLEX and ContiTech have a reputaion for reliability and longevity.
  • • Big range: for practically all media, sizes DN 25 - 1000 mm.

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