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188asia

    The high-performance dedicated sequencing valves is also called pneumatic program controlled valve or flat valve. It is one of the widely used valves in the PSA unit. It has the following characters:

    a) Fast switching and operating flexibly and safely

    b) On-line maintenance without removing from pipes

    c) Stuffing box which adopts the wearable V-shaped self-tightening compensate seal ring has a long lifetime of sealing.

    d) The spool adopts special structure and material has the advantages of souring-resistance, zero leakage, and long lifetime.

    e) Low flow-resistance with stream-line shape valve body

    f) Keep excellent sealing performance even in the condition of frequently switching (more than 300000 times per year).

    g) For high-pressure difference and mass flow rate requirement process, balancing system is adopted to remove pressure difference before and after the valve. In this condition, common compressed air-driven valve can be used.

    With all the above properties, the valve is considered to have high-performance and it has been widely used in pressure swing adsorption (PSA) gas dehydration, pressure swing adsorption (PSA) air separation, and pressure swing adsorption (PSA) gas separation.