The two seem very similar, but their functions are quite different. Stainless steel metal hose, also known as metal hose, metal flexible connection and stainless steel hose, has good flexibility, temperature resistance, pressure resistance and corrosion resistance, and is suitable for transmission of steam, water, oil and various industrial gases and other media. 2 The rubber soft connection sphere is composed of a rubber tube with multiple layers of rubber scraped nylon cord fabric and outer rubber layers in the inner rubber layer and reinforcement layer. The rubber materials used vary according to the media, including natural rubber, styrene butadiene rubber, butyl rubber, butyl rubber, EPDM, chloroprene rubber, silicone rubber, fluororubber, etc. It has the functions of heat resistance, acid resistance, alkali resistance, corrosion resistance, abrasion resistance, oil resistance, etc.
The metal flexible connection plays an important role in the movement, thermal expansion absorption and vibration absorption of the pipeline system. The model length and connection mode of metal flexible connection 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 rubber part is composed of inner and outer rubber, cord layer 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. CF type single flange transmission joint is composed of body, sealing ring, gland and short pipe flange components.
It is suitable for welding with pipeline while connecting with flange. Installation is to adjust the installation length between the two ends of the product and the pipeline or flange. After installation and welding, tighten the gland bolts diagonally and evenly at one time to form one, with a certain displacement, so that it can be adjusted according to the site size during installation and maintenance. During operation, the axial thrust can be transmitted to the whole pipeline. Connectors are also called electric butterfly valves, flexible electric butterfly valves, rubber flexible connectors, shock absorbers, rubber shock absorbers, rubber expansion joints, etc.
Mainly JGD type and KXT type. This product consists of tubular rubber parts composed of inner and outer rubber, cord layer and steel ring, which are vulcanized at high temperature and high pressure and then loosely combined with metal flanges or parallel joints. This product makes use of the advantages of rubber, such as high elasticity, high air permeability, medium resistance, weather resistance and radiation resistance, to reduce vibration and noise, and to compensate for thermal expansion and contraction caused by temperature changes. It is widely used in various pipeline systems. The electric butterfly valve is generally composed of inner rubber layer, fabric reinforcement layer (reinforcement layer includes multi-layer rubber scraped nylon cord fabric), middle rubber layer, outer rubber layer, end reinforcement metal ring or steel wire ring, which is formed by high temperature and high pressure vulcanization and loosely combined with metal flange or parallel joint. This product makes use of the advantages of rubber such as high elasticity, high air permeability, medium resistance, weather resistance and radiation resistance, which can reduce the vibration and noise of pipes and compensate for the expansion and contraction caused by temperature changes. The rubber product is the rubber mixture made from rubber raw materials after mixing in an internal mixer. When mixing rubber, the formula is designed according to the characteristics of the required rubber products, and the required product hardness is determined. The product is molded by the rubber plate vulcanizer. After the product is formed, flash processing shall be carried out to make the surface of the product smooth without burrs.