Butterfly valve soft seal and hard seal difference
Release time：
2020-02-12
Soft seal for room temperature environment. Hard seal can be used for low temperature, room temperature, high temperature and other environments.
First, the structure
Soft seal butterfly valve is medium type, hard seal is single eccentric, double eccentric, three eccentric butterfly valve.
Two, temperature resistance
Soft seal for room temperature environment. Hard seal can be used for low temperature, room temperature, high temperature and other environments.
Three, pressure
Soft seal low pressure - normal pressure, hard seal can also be used in high pressure and other conditions.
Four, sealing performance
Soft seal and three eccentric hard seal butterfly valve sealing performance is better, three eccentric butterfly valve in high pressure and high temperature environment can keep good seal.
In view of the above characteristics, the soft seal butterfly valve is suitable for ventilation and dust removal pipeline two-way opening and closing and adjustment, including but not limited to water treatment, light industry, petroleum, chemical and other industries. Hard sealed butterfly valve is used for heating, gas supply, and gas, oil, acid and alkali environment.
Two types of sealing butterfly valve, because the applicable conditions are different, the use of material is not the same, the same caliber, hard seal butterfly valve production costs will be higher than soft seal butterfly valve.
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