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Rubber compensator for vane pump
Some pipelines were designed with some compensating measures, such as discharge elbows, slight pipe gradients, etc., but all have become obsolete pipeline compensation methods for process equipment. The compact process equipment in the modern process technology makes these space-consuming pipe expansion compensations very limited. Therefore, people reactivated the rubber bellows compensation method. With in-depth research in materials science, people have invented many rubber-compensated joints suitable for use in process equipment, such as Stenflex rubber materials.
Choosing the right rubber material Due to the diversity of rubber shapes and the excellent elasticity, the rubber expansion compensator has a very large expansion and contraction compensation capability in the piping system of the process equipment, since its expansion compensation amount is not in practice. Restricted, it can therefore be well compensated and balanced for various types of flex and vibration. In addition, the rubber expansion compensator also has a noise-reducing function, which makes it ideal for use in connection with process pumps. The application of rubber expansion joints is limited by the conditions of the process equipment and the materials used. The current mainstream material is synthetic rubber.
Under the condition of continuous advancement and development of this technology, EPDM ethylene-propylene synthetic rubber material has emerged and has become the standard material in the process industry. It has good heat resistance, and also has good weather resistance. At the same time, it can resist the corrosion of various chemical liquid media under working conditions up to 100°C.
In addition to EPDM ethylene propylene synthetic rubber materials, NBR nitrile rubber and CIIR chlorinated butyl rubber are commonly used today. NBR nitrile rubber materials are known for their resistance to the erosion of gasoline and lubricants. CIIR chlorobutyl rubber is very suitable for the supply of drinking water. The application areas of the above materials are very extensive, including a wide range of applications between the diameters DN25~DN3600 and the highest pressures that can withstand up to 16 bar. These synthetic rubbers have a reliable operating temperature range of -30 to 110°C and can be used over a long period of time in this temperature range. Under the above conditions of use, these synthetic rubber materials can:
â– Compensation for balanced thermal expansion;
â– Compensation for errors in balanced pipe installations;
â– used as a structural member;
â– To reduce vibration and noise, such as reducing the vibration and noise of process pumps.
In the high-tech requirements of pipeline compensation, rubber compensation joints can appear in the process equipment in the form of a telescopic, vibration-damping compensation system. At this point, technical preparation and technical design are of great significance: pipelines, elbows, tees, etc. must all be integrated with rubber components. For example, pre-tightening components, steering knuckles, etc. can be used as a whole system to become The components installed in the process equipment piping system.
Summary The correct use of rubber retract compensators is a very reliable and space-saving vibration and expansion compensation and balance solution in the process equipment piping system. Variety of rubber expansion compensator materials can meet various application requirements of users.
Rubber compensator in the process industry
The process equipment pipeline technology is very important to solve the problem of compensation for expansion and contraction due to thermal expansion and pressure deformation. In solving such problems, what is the role of the rubber compensator? What shape of rubber compensator can I buy? What are the limitations when using rubber compensators? This article will give detailed answers to these and other related questions. The pipelines of the process equipment are usually assembled under normal temperature and no working load. When the process equipment is working, under the effect of temperature and pressure, the pipeline will expand, and it will shrink after stopping working. If these expansions are not compensated for, they will cause internal stresses in the pipeline and create large forces at the fixed points. These forces may cause the piping of process equipment to rupture.