The inside of the expansion joint consists of a seamless natural synthetic rubber layer extending up to the rubber flange. This prevents the circulating fluid from coming into contact with the reinforcement mesh. Different rubber materials can be used on the internal layers for giving service to almost any installation using chemical products, petroleum, waste disposal waters, gaseous and abrasive products and many others.
Depending on the application, the outer surface of the Joint is made of natural or synthetic rubber. The primary function of the outer layer is to protect the Joint against external influences. We supply special polymers for chemical products, oils, sunlight, gases, acids and ozone.
A high-quality mesh of synthetic material, incorporated between the outer layer and the internal layer, permits the Joint to function at the pressures for which it is designed.
Metal rings or wire, embedded in the middle layers, are used to reinforce the Joint and allow it to support the required working pressure and provide it with the stiffness necessary for operating under vacuum conditions.
SHORTER JOINT LENGTH
Compared to expansion elbows and rings the rubber expansion joints present considerable space advantages. The costs of the complete installation are reduced by the saving of space in the plant, quicker assembly of the installation and supports and lesser loss of pressure.
The relatively light weight of the Rubber Expansion Joints and the fact that no special equipment is required for their positioning contribute to a large extent in the saving of labour hours during assembly.
LESSER FORCE REQUIRED TO ACHIEVE FLEXIBILITY
The inherent flexibility of Rubber Expansion Joints allow almost unlimited flexibility for recuperating from the imposed movements thus protecting the unit motor from possible breakdowns.
RESISTENCE TO CORROSION AND EROSION
A large variety of natural and synthetic elastomers and special meshes are available in the industrial market. These materials are treated and combined to offer service under the most diverse working conditions of pressure, temperature, corrosion, abrasion and erosion.