The use of forged steel pneumatic valves

forged steel pneumatic valve often ignore the amount of fat injection problem. Note grease gun after lubrication, low temperature by the pneumatic valve selection operators after pneumatic valves and greasing connection, on the operations. There are two pneumatic valve forged steel gate: 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 pneumatic valve, pneumatic valve sealing capacity of different calculations. In pneumatic valve size and class, calculate the sealing capacity and reasonable injection amount of grease.
pneumatic valve forged steel gate often ignore the pressure problem. In greasing operation, on the pressure gauge half free ball float steam hydrophobic pneumatic valve to a peak valley variation law. Pressure is too low, pneumatic valve seal leakage or security failure, pressure is too high, on the relief valve manufacturer jams, sealed inside lipid hardening or seal and pneumatic ball valve, pneumatic valve plate lock. Usually fat injection pressure too low, injecting grease into the pneumatic valve at the bottom of the cavity, more commonly occur in small brake pneumatic valve. And grease injection flow control pneumatic valve pressure is too high, on the one hand, pneumatic valve check check insulation gate on the mouth, so fat remote-controlled floating ball pneumatic valve hole blocking. at affection springs closed a wrench and all type of be replaced; The plunger as pneumatic valve is lipid hardening on the one 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.
forged steel globe pneumatic valve attention to the problem of pneumatic valve in switch. Pneumatic ball valve maintenance generally is in open state, when special circumstances to choose shut down maintenance. Other pneumatic valves are not all in open position. Forged steel globe pneumatic valve must be closed during maintenance, to ensure the sealing ring is full of grease seal grooves, if open, sealing grease directly off the inflow, or pneumatic valve cavity, wasteful. Pneumatic valve greasing, often ignore the fat injection effect problem. Greasing operation pressure, fat injection rate, switch is normal. But in order to ensure the pneumatic valve grease injection effect, and sometimes need to open or close the pneumatic valve, check the lubrication effect, confirm the pneumatic valve pneumatic valve ball or disc surface lubrication even.
forged steel check pneumatic valve must pay attention to the body bleed and plug pressure problem. Pneumatic valve down after test, seal chamber pneumatic valve cavity gas and moisture by environmental temperature and pressure, on the drainage pressure, before for greasing work smoothly. Greasing the air and water are fully replace seal cavity. Drain off the pneumatic valve cavity pressure in time, also to ensure the safety of the use of pneumatic valve. On the end, be sure to tighten the drainage and blowdown plug, in case of an accident. Greasing, attention should be paid to the grease evenly. Normal greasing, distance on the mouth of the lipid Kong Xian recently fat, and then to low, the last is high, successive fat. If not according to the law or not fat, exist jams, QingTong processing in a timely manner. Extended end
of forged steel gate to watch the pneumatic valve size and pneumatic valve sealing ring seat level. Pneumatic ball valve, for example, if there is a interference, can be adjusted to the open a limiter, after confirm size flat lock. Adjust the limit not only the pursuit of open or GuanYiFang position, want to consider as a whole. If a flush and close does not reach the designated position, will cause the pneumatic valve is lax. By the same token, the adjustment locked in place, also want to consider to open a corresponding adjustment. Ensure that the pneumatic quarter-turn valves. Note after fat, must be sealed on the mouth. Avoid impurities to enter, or on the mouth of lipid oxidation, block to daub antirust grease, prevent rust. So that the next operation application
forged steel cryogenic pneumatic valve to consider specific treatment in oil transportation in the future. In view of the different quality diesel and gasoline, gasoline of scour and decomposition capacity should be taken into account. Pneumatic valve operation in the future, meet gasoline period of operation, timely add grease, prevent wear and tear. Greasing, don't ignore on the pneumatic valve stem position. Pneumatic valve shaft parts with sliding sleeve or packing, also need to keep the lubrication state, to reduce the operation of the friction resistance, as does not ensure lubrication, enlarging the worn parts, electric operation torque, when the manual switch.
some pneumatic ball valve pneumatic marked with arrow on valve body, if there is no attached English FIOW handwriting, seal seat direction, not to the flow direction of medium as a reference, pneumatic valve since the drain in the opposite direction. Typically, two-seater sealed pneumatic ball valve with two-way flow.