What are the typical features of bellows seal single-seat pneumatic control valve

Bellows seal single-seat pneumatic - valve structure is a kind of orientation of the pneumatic control valve, the valve structure is compact, the fluid channel in an s-shaped streamlined, small pressure drop loss, large flow, adjustable range. Its cover adopt wave tube lines on the sealing structure, can eliminate process medium movement clearance from the stem to the possibility of a leak, it is one of the significant characteristics of bellows seal valve. Because of the corrugated pipe deformation element itself and its aging resistance, the pneumatic - valve completely overcome the packing seal valve usually packing aging and temperature sensitive weaknesses. Secondly, using the corrugated tube & ndash; Packing double sealing structure, better safety and reliability. Bellows seal single-seat pneumatic control valve in the highly toxic, corrosive, radioactive and other special medium rare is widely used in automatic control system. Valve core area is large, good vibration resistance, with many spring loaded diaphragm actuator, its compact structure, big output force.