The function of general pneumatic valves often encountered problems

why double valve pneumatic valve, small open degree of easy oscillation when work?
for single core, when the medium is away, pneumatic valve stability is good; When the medium is flow closed type, poor stability of pneumatic valve. Two-seater pneumatic valve has two pneumatic valve core, the pneumatic valve core in the flow close, pneumatic valve core in the flow, in this way, when you are working in a small open degree, the flow of the closed type pneumatic valve core is easy to cause the vibration of the pneumatic valve, pneumatic valve that is double disc cannot be used for small open degree of work.
, why double seal pneumatic valve cannot be used as a cut-off pneumatic valve?
two-seater pneumatic valve pneumatic valve core has the advantage of force balance structure, allow the pressure difference is big, but its disadvantage is that the two seal face not good contact at the same time, cause leakage. If it is used to cut off at artificially, mandatory, obviously the result is bad, even as it made many improvements ( Such as pneumatic valve, double sealing sleeve is not desirable.
why, desalted water medium using line with rubber butterfly pneumatic valve, short service life of lining fluorine pneumatic diaphragm valve?
desalted water medium containing low concentration of acid or alkali, they have larger corrosion in rubber. Rubber corrosion performance for expansion, aging, low intensity, with rubber lining the pneumatic butterfly valve, pneumatic diaphragm valve use effect is poor, its essence is the rubber is not caused by corrosion. Hong feng think after pneumatic valve rubber lining pneumatic diaphragm valve to improve corrosion resistance of good lining fluorine pneumatic diaphragm valve, but lining fluorine pneumatic valve diaphragm and diaphragm are folded up and down and were broken broken, mechanical damage, the service life of pneumatic valve. Now is the best way to deal with water special pneumatic ball valve, it can be used to ~ years.
pneumatic valve should choose as far as possible, why to cut off the hard seal? Rubber disc check pneumatic valve, and the aerodynamic lift check valve, butterfly buffer
check pneumatic valve leakage is lower, the better to cut off the pneumatic valve requirements, soft seal leakage of pneumatic valve is the lowest, to cut off the effect of course good, but I don't wear. From small leakage and sealing and reliable double standards, soft seal cutting is not as good as hard seal cut off. As a fully functional ultra light regulating pneumatic valve, sealing and pile has wear-resisting alloy protection, high reliability, can satisfy to cut off the pneumatic valve.