The increase of fireproof function of stainless steel spheres
Usually, in pipeline system software with dual position adjustment, strict sealing performance, sand slurry, damage, safety channel shrinkage, quick opening and closing hands (1/4 turn opening and closing), high pressure cut-off (large pressure difference), low noise, air pockets and vaporization, slight leakage to the air, low actual operating torque, and low liquid friction resistance, it is strongly recommended to use stainless steel spheres. The sealing ring of high-pressure gate valves with stainless steel spheres is usually made of plastic. Therefore, when selecting the structural characteristics and performance of the ball valve, the fire prevention and fire prevention of the stainless steel sphere should be considered. For units such as crude oil in urban squares, chemical plants, and metallurgical industry, when using ball valves in machinery equipment such as Chengdu plastic extruder bearings and pipe system software for flammable and explosive substances, fire prevention and fire prevention should be paid more attention to. Under certain contact stress effects, stainless steel spherical sealing rings may undergo elastic-plastic deformation in some areas. This deformation can compensate for the production precision and surface roughness of the ball, ensuring the sealing performance of the ball valve.
Taking into full consideration the fire prevention situation, it is crucial to change the materials used for the bearings of the Chengdu plastic extruder bearings to the ones used in the rust steel ball stage. Instead, some fire-resistant raw materials should be used. Only in this way can significant losses and damages to the bearings of the Chengdu plastic extruder caused by the stainless steel ball catching fire due to other reasons or the direct influence of heat sources be ensured. Nowadays, all stainless steel spheres are made of Chengdu plastic extruder bearings made of stainless steel, which is heat-resistant. Perhaps the architectural coating on the surface of the stainless steel sphere is fireproof coating, so the fireproof of the stainless steel sphere can be greatly maintained on the outermost layer of the plastic extruder bearings in Chengdu.
