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    Safety Valve Medium Discharge
    time:2013-07-09  |  visits:1319  |  tags:safety valve,relief valve,,,
    Detail:

    According to the medium discharge method, safety valve or relief valve can be divided into three types, including full closed type safety valve or relief valve, semi-closed type safety valve or relief valve and non-closed type safety valve or relief valve.
    1. Full closed type safety valve or relief valve
    When full closed type safety valve or relief valve discharges mediums, the mediums are discharges fully through exhaust pipe, without leaking into the atmosphere, because these mediums are poisonous and inflammable mediums.
    2. Semi-closed type safety valve or relief valve
    Some mediums discharged by semi-closed type safety valve or relief valve are through exhaust pipe, at the same time that some mediums are leaked through the space between the valve bonnet and valve stem. Semi-closed type safety valve or relief valve is normally applied to the mediums which will not pollute the environment.
    3. Non-closed type safety valve or relief valve
    The bonnet of non-closed type safety valve or relief valve is open, making the spring chamber open to the atmosphere. This structure is good at reducing the spring temperature. Non-closed type safety valve or relief valve is mainly applied to steam and high temperature gas which does not pollute the environment.

     
       
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