Stainless steel ball of the pneumatic valve maintenance methods

stainless steel ball pneumatic valve is a commonly used instrument pneumatic valve, mainly used for cutting, distribution, and change the flow direction of medium, has simple structure, small volume, light weight, small fluid resistance, easy maintenance, etc. Stainless steel ball pneumatic valve in use need to be certain maintenance, to ensure the normal operation of stainless steel ball of the pneumatic valve. The stainless steel ball pneumatic valve how to maintain? Small make up today is to introduce specific stainless steel ball of the pneumatic valve maintenance methods.
stainless steel ball of the pneumatic valve maintenance methods:
the first: blank after finished product, after pickling, must want to rinse, if there is a sand hole or perforation, should use the argon arc welding gas shielded welding on it. Solid fusion processing and grinding, then;
the second: the finished product, processing after the completion of the test. Should use add rust powder to wash water.
the third: as far as possible to pack the goods in wooden cases, in the process of transportation is not contact with metal products.
4: pipe after installation, regularly carries on the maintenance and maintenance, such as pneumatic valve stem often painted the lubricating oil. Appropriate pneumatic valve opening and closing a few times. Make the ball, pneumatic valve stem, sealing surface is not easy to assimilate.
stainless steel ball pneumatic valve with reducing and generally not reducing channel two structures. No matter the structure, pneumatic ball valve flow resistance coefficient is small.
in particular, the so-called full flow type, that is, not reducing pneumatic ball valve, due to its channel diameter equal to the inner diameter pipeline, local resistance loss only equivalent length of pipe friction, namely in all pneumatic valves, the pneumatic ball valve minimum flow resistance. In rocket and its experimental system, the requirements of pipeline resistance as small as possible.
there are two ways to reduce the resistance of piping system: one is to reduce the fluid velocity, therefore need to increase diameter and pneumatic valve size, for the efficiency of pipeline system tends to produce adverse effect, especially for conveying system at low temperature ( Liquid hydrogen is extremely unfavorable.
( Reduce the local resistance of pneumatic valve, therefore, pneumatic ball valve have naturally become the best choice.
( Pneumatic ball valve opening and closing the switch quickly and conveniently.
since only the pneumatic ball valve in the general case rotates ° completes the fully open or close the action, it is easy to realize rapid opening and closing. Can realize the rapid opening and closing, only for some of the structure of the opening and closing time. ~。 S to ensure that can be used to test the automation system. Pneumatic valve rapid opening and closing, no impact on the operation.
( Pneumatic ball valve sealing performance is good.
most of the pneumatic ball valve pneumatic valve seat is made of elastic material such as ptfe, sealing pair of metallic and non-metallic materials, often referred to as soft seal. In general, soft seal sealing easy to guarantee, and the machining accuracy and surface roughness on the surface of the sealing requirement is not high.
( Pneumatic ball valve long service life.
because ptfe have good self-lubrication, with small sphere of friction and wear, and because the ball processing technology improvements, reduce roughness, thereby improving the service life of the pneumatic ball valve.