FABRIC EXPANSION JOINTS Technical Brochure
FABRIC EXPANSION JOINTS Fabric expansion joints have found a wide range of applications, in all industry branches due to their adaptability for different conditions: withstand to wide range of temperatures, high movement capability, apability, requires minimal maintenance, suitability for abrasive or corrosive applications. applications We design and manufacture textile expansion joints for a wide field of applications pplications: - Fresh air blowers - High temperature air or gas ducts. - Special multi-wave joints for high mechanical requirements Fabric Expansion Joins can be found in a wide range of industries: Oil & Gas, Petrochemical Industry Marine & Offshore Applications Power Generation Plants Thermal Power Plants CCGT Combined Cycle Gas Turbine Plants Mining & Metallurgical Industry Metal Foundries Iron & Steel Industries Paper & Pulp Industry Water & Waste Industry Food & Beverages Sector Pharmaceutical Industry Automotive Industry For us quality meaning is more than certificated raw-materials materials or modern engineering programs, after all it is our people, our team of professionals, professionals every one of the company who contribute to produce the highest quality products, trough exhaust engineering analysis to production process itself. Cement Industry
Fabric Expansion Joints Product Lines ECO LINE High quality Expansion Joints for Low Temperatures Cost-Effective Quality ECO Line Expansion Joints are recommended for low-temperature applications in plant installations, where the ability to absorb vibration is required. ECO Line Expansion Joints have different design and construction characteristics: single Layer or two- layer configurations of first range special materials, additional reinforcement in the attachment zone are few of the available solutions for your specific requirements. Comdiflex has developed special designs which combine the ability of vibration and movement absorption, especially suitable for ventilation and extraction systems. Temperature Range: -40ºC to 200ºC HIGH TECH LINE Multi-Layers Versatile Expansion Joints for High Temperatures Resistance, Adaptability and Versatility Comdiflex HIGH-TECH Line includes a range of multi-layer expansion joints suitable for applications with high temperatures and heavy conditions. Mechanically robust compensators, elaborated from the last generation technical fabrics are developed especially for demanding applications, where resistance and ability to compensate large movements are required. Additional insulation pillows can be used to protect the flexible element from the system s heat and prevent fly ash from filling the gap between the compensator and metallic deflector. Temperature Range: up to 1000ºC INNOVA LINE Maximum Resistance Expansion Joints for Highly Demanding Applications Custom Made Solution for Extreme Conditions Comdiflex INNOVA Line products are engineered and manufactured using special technical fabrics and particular metal/ptfe foils in order to provide excellent resistance in highly aggressive applications with extreme temperatures or corrosive fluids. Our highly skilled and experienced engineering team develops custom made solutions for wide range of critic situations. Special extra reinforced types are available for large movements and special extra-resistant models for corrosive applications.
Fabric Expansion Joints Types of Fastening Expansion Joints with different types of connections on each side Expansion Joints with variable dimensional forms (circular to rectangular and vice versa) Special Extra Reinforced Types engineered for extra intense axial and lateral movements
Fabric Expansion Joints Types of Fastening - Details Special Designs
Custom designed to suit a client's individual specifications The type of expansion joints is chosen based on the important criteria which affect the selection of the materials and its engineering design: Ambient conditions, Dust loading and velocity, Moisture content, condensation and washing, Movement, Noise, Pressure, Temperature and Tolerances. Only first line raw materials that pass our quality inspection are used for the manufacture of our fabric expansion joints. Common used types: Simple duct attachment - For standard applications - Effectively used for circular ducts operating at moderate temperature and load - Absorb motion and vibrations - Easy to handle and install Belt type expansion joint (with/ without bolster) - Work within high temperature and high pressure situations - Ability to absorb simultaneous movements easily in more than one plane - Temperature and corrosion resistant insulating fabrics available - Perfect for applications requiring noise reduction and sound absorption - Depending on the application and temperature additional insulation bolsters can be used. Flanged expansion joint U Type - Can be used for compensation of axial, angular, lateral expansion movements in pipes or additional movements - Recommended for temperatures up to 350ºC 450ºC and moderate pressures - Engineered and built to specific customer requirements - Most advance materials to ensure long life and predictable performance - Possibility to complement the installation with metallic inner sleeve Because of the diversity of applications and operating conditions, Comdiflex has developed a series of special designs in addition to the standard models. These include: Expansion Joints with different types of connections on each side Expansion Joints with variable dimensional forms (circular to rectangular and vice versa) Special Extra Reinforced Types engineered for extra intense axial and lateral movements
Materials The materials selection for Fabric Expansion Joints is a critical factor in the successful design and construction of each product. The materials are chosen based on the important criteria and operating conditions of the installation: chemical resistance, temperature limitations, abrasion resistance, tensile strength and susceptibility to vibration or movements are major considerations when selecting materials and designs of fabric expansion joints. The construction of Fabric Expansion Joints is generally made of several layers, those necessary for controlling the operating conditions. Insulation layers are necessary if the temperature of the media is higher than the maximum allowable sustained temperature of the sealing layers. The different types of insulation layers vary widely in their mechanical stability and their resistance to temperature and chemicals. They are therefore selected based on conditions in which they will be used. The table shows the resistance to sustained and temporary temperatures of various insulation elements used in compensator s manufacturing. Resistance to acids, bases and solvents are given in this catalogue in terms of tendencies: Temperature and media resistance of sealing elements The table shows the resistance to sustained and temporary temperatures of various foils and coated fabrics used compensator s manufacturing. Resistance to acids, bases and solvents are given in this catalogue in terms of tendencies:
Required torque and determination of thickness for the counter-flanges Important note All the technical data contained in this catalogue is based on many years of experience and tests. However, the diversity of possible situations makes them serve as guide values only. For your specific requirements, please do not hesitate to contact our engineering team