lv-pneumatic
Pneumatic industry,Diaphragm Valves of Bag House Filter, Personalized Customization
Latest products
Soft seal pneumatic valve and hard seal pneumatic valve have what different place?
by：AIRWOLF
2020-10-15
Pneumatic valve can be divided into pneumatic valve and soft sealing pneumatic valve, hard seal for the following this two kinds of seal have what different place.
hard seal: both sides of the sealing ring are metal material or hard other material referred to as' hard seal. This seal sealing performance is poor, but high temperature resistance, wear resistance, good mechanical performance. Such as: steel + steel; Steel + copper; Steel + graphite; Steel + alloy steel; ( The steel may also be cast iron, cast steel, alloy steel can also be surfacing welding, spraying alloy) 。
soft seal, seal on both sides of the side is the metal material, on the other side is elastic non-metallic materials known as' soft seal. This seal sealing performance is good, but not high temperature resistant, easy to wear and poor machinery. Such as: steel + rubber; Steel + four fluorine polyethylene, etc. Soft seal USES a certain strength, hardness and heat resistance properties of non-metallic materials, sealed performance is good, can achieve zero leakage, but with poor life and adaptability to temperature. Hard seal made of metal sealing performance is relatively poor, despite the manufacturers claim to achieve zero leakage. Soft seal part of corrosive material can't meet the technological requirements, hard seal can solve! The two seal can complement each other, in terms of sealing soft seal is relatively good, but now hard seal sealing can also meet the requirements of corresponding! The advantage of soft seal is sealed performance is good, defect is easy ageing, wear and short service life. Hard seal service life is long, but the sealing is relatively worse than soft seal.
the difference of the structure mainly include the following:
1, the difference of structure: soft seal pneumatic valve is used in linear hard seal for more eccentric eccentric single, double, triple eccentric pneumatic valve
2, heat resistance, good sealing used in normal temperature environment. Hard seal can be used in low temperature, normal temperature and high temperature environment
3, pressure: soft seal low-pressure - Atmospheric pressure, hard seal can also be used in high pressure working conditions, such as
4, sealing performance: soft sealing and three partial hardness sealing pneumatic valve sealing performance is better, triple eccentric pneumatic valve in high pressure high temperature environment can maintain a good seal.
in view of the above characteristics, sealing pneumatic valves open and close and is suitable for ventilation and dust removal pipe two-way adjustment, water treatment, light industry, petroleum, chemical industry, etc. Hard seal pneumatic valve used for heat supply, gas supply, and gas, oil, acid and alkali environment.
with the pneumatic valve features easy installation, convenient maintenance, the characteristics of simple structure is more obvious, which is widely used. Electric soft seal pneumatic valve, pneumatic sealing pneumatic valve, hard seal pneumatic valve began to replace the electric brake in more and more occasions pneumatic valve, globe pneumatic valve, etc.
hard seal: both sides of the sealing ring are metal material or hard other material referred to as' hard seal. This seal sealing performance is poor, but high temperature resistance, wear resistance, good mechanical performance. Such as: steel + steel; Steel + copper; Steel + graphite; Steel + alloy steel; ( The steel may also be cast iron, cast steel, alloy steel can also be surfacing welding, spraying alloy) 。
soft seal, seal on both sides of the side is the metal material, on the other side is elastic non-metallic materials known as' soft seal. This seal sealing performance is good, but not high temperature resistant, easy to wear and poor machinery. Such as: steel + rubber; Steel + four fluorine polyethylene, etc. Soft seal USES a certain strength, hardness and heat resistance properties of non-metallic materials, sealed performance is good, can achieve zero leakage, but with poor life and adaptability to temperature. Hard seal made of metal sealing performance is relatively poor, despite the manufacturers claim to achieve zero leakage. Soft seal part of corrosive material can't meet the technological requirements, hard seal can solve! The two seal can complement each other, in terms of sealing soft seal is relatively good, but now hard seal sealing can also meet the requirements of corresponding! The advantage of soft seal is sealed performance is good, defect is easy ageing, wear and short service life. Hard seal service life is long, but the sealing is relatively worse than soft seal.
the difference of the structure mainly include the following:
1, the difference of structure: soft seal pneumatic valve is used in linear hard seal for more eccentric eccentric single, double, triple eccentric pneumatic valve
2, heat resistance, good sealing used in normal temperature environment. Hard seal can be used in low temperature, normal temperature and high temperature environment
3, pressure: soft seal low-pressure - Atmospheric pressure, hard seal can also be used in high pressure working conditions, such as
4, sealing performance: soft sealing and three partial hardness sealing pneumatic valve sealing performance is better, triple eccentric pneumatic valve in high pressure high temperature environment can maintain a good seal.
in view of the above characteristics, sealing pneumatic valves open and close and is suitable for ventilation and dust removal pipe two-way adjustment, water treatment, light industry, petroleum, chemical industry, etc. Hard seal pneumatic valve used for heat supply, gas supply, and gas, oil, acid and alkali environment.
with the pneumatic valve features easy installation, convenient maintenance, the characteristics of simple structure is more obvious, which is widely used. Electric soft seal pneumatic valve, pneumatic sealing pneumatic valve, hard seal pneumatic valve began to replace the electric brake in more and more occasions pneumatic valve, globe pneumatic valve, etc.
Custom message
