As the advantages and disadvantages of pneumatic valve

the advantages of pneumatic valve, globe, simple structure, manufacture and maintenance more convenient.
, small work schedule, opening and closing time is short.
, good sealing, sealing surface friction between the small, long service life.
the structure of pneumatic valve pneumatic valve, globe have straight-through, straight and right Angle type. Straight-through are the most common type of structure, but the maximum resistance of the fluid. Once-through fluid resistance small, usually for containing solids or the viscosity of fluid. Right Angle type pneumatic valve forged, more suitable for smaller drift diameter, high pressure by the pneumatic valve.
, double seal design ( Bellows + packing if the bellows failure, pneumatic valve stem packing will avoid;
and external leakage, and accord with international standard seal;
, there is no fluid loss, reduce energy losses, improve the plant equipment safety;
and long service life, reduce maintenance, lower operating costs;
and durable bellows seal design, to ensure that the pneumatic valve stem zero leakage, provided no maintenance conditions.
as the types of pneumatic valve according to the location of the pneumatic valve stem threads with external thread type, internal thread type. According to the flow of medium, have straight-through type, straight and Angle. By the pneumatic valve points, the form of the seal packing seal by the pneumatic valve and pneumatic valve bellows seal globe.
the disadvantage of pneumatic valve, globe
and fluid resistance is big, opening and closing the required force is larger.
, does not apply to take larger particles, viscosity, easy to coking of the medium.
and poor regulation performance.
the kinds of pneumatic valve, globe according to the location of the pneumatic valve stem threads with external thread type, internal thread type. According to the flow of medium, have straight-through type, straight and Angle. By the pneumatic valve points, the form of the seal packing seal by the pneumatic valve and pneumatic valve bellows seal globe.
, bellows seal globe pneumatic valve adopts the design of the bellows seal, completely eliminates the ordinary pneumatic valve pneumatic valve stem packing seal aging fast easy leakage faults, not only improve the efficiency of the use of energy, increase production equipment safety, maintenance cost was decreased, and the frequent maintenance, also provides a clean and safe work environment.