Complex operation under the condition of pneumatic valve adjusted 2)

pneumatic valve under the condition of complicated operation, will produce severe corrosion, cavitation, erosion, intercepting, scratch, pneumatic control valve sealing surface will produce significant damage, lead to unreliable valve oil seal, seal life short, become a pneumatic valve didn't break the long-term problems for decades. Fully functional ultralight pneumatic valve and pneumatic valve dysfunction of trouble, we are committed to a complex and difficult conditions sealed breakthrough.
in the first place, what is the problem caused by the complexity of the
working conditions, high pressure, high pressure - A serious erosion and cavitation, the influence of the seal life.
, the high temperature, large temperature difference Serious at room temperature, the nature of the thermal expansion and contraction change conference, cause leakage, serious intercepting, make difficult, or even 'stuck. '
- not clean medium Cause serious erosion, intercepting, cut the core block, affect the movement and seal.
- corrosive medium Make contact with the material corrosion damage.
closed - Ⅵ level Especially the big pressure, core, the seat must be closed tight, when you turn on the sealing surface friction, is a strain.
summary: in the severe cavitation and erosion, corrosion, expansion and contraction, intercepting, scratch, poor working conditions, such as the level Ⅵ harder to block, and become the regulating pneumatic valve without breaking a decade of chronic disease.
second, traditional sealing structure reliability analysis
) Soft seal soft seal - soft materials Easy to seal, poor reliability, because the soft material.
) Soft seal of stainless steel - Ratio ( ） Slightly better, but it is still not reliable sealing.
) Stainless steel to stainless steel - Ratio ( ） A little bit better, but still very low hardness stainless steel ( 人权组织? ) Is still a reliable sealing performance.
) Multi-layer seal pneumatic seat - Stainless steel plate, use soft material overlap, sealing reliability and above ( ) （ ) The same, but the improved heat resistance.
) Resistant alloy - Usually surfacing too made of alloy, is the best sealing material. But it is still not high hardness ( 人权组织? ) And still not adapt to the harsh conditions of complex conditions.
) Ceramic seal - Toughness, high hardness, lack brittle crack don't even from the first crack.
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