The electric ball valve plays an important role in the movement, thermal expansion absorption and vibration absorption of the pipeline system. The model length and connection mode of the electric ball valve shall be in accordance with the user's requirements. Internal and external threads play a direct sealing role. In order to ensure that there is no leakage at the joint, it is often filled with lead oil, linen and PTFE raw material belt; Teflon raw material belt is widely used; This material has good corrosion resistance, sealing effect, and is easy to use and store. When disassembling, it can be completely removed, because it is a non sticky film, which is much superior to lead oil and linen. According to the connection mode, it can be divided into three types: loose flange type, fixed flange type and threaded type; According to the structure, it can be divided into single sphere, double sphere, curved sphere, etc. The tubular valve part is composed of inner and outer rubber, cord fabric and steel ring, which is formed by vulcanization and then loosely combined with metal flange or parallel joint.
This product can reduce vibration and noise, and can compensate for thermal expansion and cold contraction caused by temperature changes. It is widely used in various pipeline systems. Due to its good comprehensive performance, the flexible electric ball valve is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, water heating, fire protection, and electric power. According to different materials, it can be made into various varieties, such as acid resistance, alkali resistance, corrosion resistance, oil resistance, high temperature resistance, radiation resistance, wear resistance, aging resistance, etc., which can adapt to a variety of media and environments.
The joint is also called electric ball valve, flexible electric ball valve, electric ball valve of valve, shock absorber, valve shock absorber, valve expansion joint, etc. Mainly JGD type and KXT type. This product is a tubular valve part composed of inner and outer rubber, cord layer and steel ring, which is vulcanized at high temperature and high pressure and then loosely combined with metal flange or parallel joint. This product makes use of the advantages of the valve such as high elasticity, high gas resistance, medium resistance, weather resistance and radiation resistance to reduce vibration and noise, and can compensate for thermal expansion and cold contraction caused by temperature changes. It is widely used in various pipeline systems.
The electric ball valve is generally composed of an inner rubber layer, a fabric reinforcement layer (the reinforcement layer has multiple layers of rubber scraped nylon cord fabric), a middle rubber layer, an outer rubber layer, an end reinforced metal ring or a steel ring, which is formed by vulcanization at high temperature and pressure, and loosely combined with a metal flange or a parallel joint. This product makes use of the advantages of the valve, such as high elasticity, high air permeability, medium resistance, weather resistance and radiation resistance, which can reduce the vibration and noise of the pipeline and compensate for the expansion and contraction caused by temperature changes. Raw rubber is elastic and lacks the necessary plasticity during processing, so it is not easy to process. In order to improve its plasticity, the raw rubber should be plasticated, so that the mixing agent can be easily evenly dispersed in the raw rubber. At the same time, it helps to improve the permeability of the rubber material into the fiber fabric and the molding fluidity during the calendaring and molding processes. The process of degrading long chain molecules of raw rubber to form plasticity is called plasticizing.