Stainless steel valve on the homework correct posture, come and try it!

by:AIRWOLF     2020-05-24
Stainless steel valve on the homework correct posture, come and try it! Stainless steel valves can be used to control water, steam, oil, gas, mud, all kinds of corrosive medium, liquid metal and radioactive fluid and other types of fluid flow, pressure valve operation can be from 0. 0013MPa- 1000 mpa ultra-high pressure, the working temperature Ultra-low temperature of 269 ℃ to 1430 ℃ high temperature. Stainless steel valve is a kind of widely used products, are used in almost all production areas, including stainless steel valves because of its good corrosion resistance and sufficient mechanical strength, and is widely used in chemical industry, light industry, electric power, food and other industries, to safety and economic operation of the system plays an extremely important role. Stainless steel valve water section and channel width; Ultra wide type double lifting point can be made into opening and closing. Strong adaptability of channel depth. Rubber seal, water sealing performance is good. Adopt stainless steel, anti-corrosion performance is good. Stainless steel valves in greasing operation, on the pressure changes regularly with peak valley. Pressure is too low, high pressure seal leakage or failure, on the mouth blockage, sealed inside lipid hardening or sealing ring and valve ball, valve plate lock. Usually fat injection pressure too low, injecting grease into the valve at the bottom of the cavity, more commonly occur in small gate valves. And fat injection pressure is too high, on the one hand, to check on the mouth, so fat pore blocking determine to change the situation; Is lipid hardening on the other hand, to use cleaning fluids, repeated failure sealing grease of softening, and inject new replacement grease. In addition, sealing type and sealing material, also influence on the pressure, different seal forms have different fat injection pressure, usually hard seal fat injection pressure is higher than the soft seal. Note grease gun after lubrication, the operating personnel selection valves and greasing connection, on the operations. There are two kinds of circumstances: on the one hand, on the quantity is little greasing, sealing surface due to the lack of lubricant and speed up the wear and tear. On the other hand on the excessive, resulting in waste. Is no categories depending on the type of valve, valve sealing capacity of different calculations. Can work out seal to the valve size and class capacity, then the reasonable injection amount of grease.
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