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Electric pneumatic valve clearance is lax in the analysis of the causes of leakage
by：AIRWOLF
2020-10-15
Electropneumatic valve widely used in metallurgy, chemical industry, building materials, power plant, glass and other professional environmental technology of ventilation, dust cool or hot body pipeline, the other as recuperated gas medium flow or block device.
electropneumatic valve many times closes lax is seal damage, cause the electric pneumatic valve in use at present sealed the phenomenon. This is common seal face long hour by liquid shock and corrosion. Liquid at must speed, tiny particles containing long impact on sealing surface, causes the performance of the local damage, makes all the untight seal, a state such as revealed.
sealing surface of materials, processing quality, are present by using this kind of situation. The quality of the sealing surface of the main table is now surface can have crack, air hole and clamp design, etc. Other, human error operation, installation is unreasonable, don't pay attention to maintenance is also incur present electropneumatic valve sealing problem of a kind of important reasons, this kind of situation can prevent off after a reasonable management.
electropneumatic valve has the following two characteristics:
1, the selection of central type disc plate and short of steel plate welding manufacture of new construction plans, compact structure, light weight, easy installation, small flow resistance, flow quantity is big, to prevent high temperature shrinkage, the effect of operation cumbersome
2, no the connecting rod, bolts, etc. , reliable operation, long use life. Can transfer installation, is not affected by flow medium to
electropneumatic valve clearance is lax in the analysis of the causes of leakage:
we from the most commonly used electric soft sealing pneumatic valve, electric hard seal pneumatic valve under the simple said.
a, electric soft sealing pneumatic valve ( The pneumatic valve materials here for iron, rubber seal)
electric soft seal pneumatic valve
the electric pneumatic valve is often used in normal temperature without corrosive water opening and closing. They show revealed that there are two reasons:
1, plate corrosion, because is iron, long time must incur pneumatic valve plate rust has revealed.
2, rubber pneumatic valve seat is damaged, long hours of opening and closing, not rubber abrasion resistance, cause damage of seal.
3, the cause of electric actuator, debugging is not in place, has revealed.
2, electric hard seal pneumatic valve ( Pneumatic valve material is carbon steel, metal hard seal)
electric hard seal pneumatic valve
the pneumatic valve is used to compare with the bad working condition, common for high temperature steam, heat conduction oil, etc. Its revealed why mainly for sealing surface revealed:
1, the damage of the sealing surface, cavitation cause high temperature steam.
2, slender long time hard particle erosion incurred,
3, pneumatic valve, pneumatic valve plate with hole.
electropneumatic valve many times closes lax is seal damage, cause the electric pneumatic valve in use at present sealed the phenomenon. This is common seal face long hour by liquid shock and corrosion. Liquid at must speed, tiny particles containing long impact on sealing surface, causes the performance of the local damage, makes all the untight seal, a state such as revealed.
sealing surface of materials, processing quality, are present by using this kind of situation. The quality of the sealing surface of the main table is now surface can have crack, air hole and clamp design, etc. Other, human error operation, installation is unreasonable, don't pay attention to maintenance is also incur present electropneumatic valve sealing problem of a kind of important reasons, this kind of situation can prevent off after a reasonable management.
electropneumatic valve has the following two characteristics:
1, the selection of central type disc plate and short of steel plate welding manufacture of new construction plans, compact structure, light weight, easy installation, small flow resistance, flow quantity is big, to prevent high temperature shrinkage, the effect of operation cumbersome
2, no the connecting rod, bolts, etc. , reliable operation, long use life. Can transfer installation, is not affected by flow medium to
electropneumatic valve clearance is lax in the analysis of the causes of leakage:
we from the most commonly used electric soft sealing pneumatic valve, electric hard seal pneumatic valve under the simple said.
a, electric soft sealing pneumatic valve ( The pneumatic valve materials here for iron, rubber seal)
electric soft seal pneumatic valve
the electric pneumatic valve is often used in normal temperature without corrosive water opening and closing. They show revealed that there are two reasons:
1, plate corrosion, because is iron, long time must incur pneumatic valve plate rust has revealed.
2, rubber pneumatic valve seat is damaged, long hours of opening and closing, not rubber abrasion resistance, cause damage of seal.
3, the cause of electric actuator, debugging is not in place, has revealed.
2, electric hard seal pneumatic valve ( Pneumatic valve material is carbon steel, metal hard seal)
electric hard seal pneumatic valve
the pneumatic valve is used to compare with the bad working condition, common for high temperature steam, heat conduction oil, etc. Its revealed why mainly for sealing surface revealed:
1, the damage of the sealing surface, cavitation cause high temperature steam.
2, slender long time hard particle erosion incurred,
3, pneumatic valve, pneumatic valve plate with hole.
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