All kinds of pneumatic valve applicable occasions and advantages and disadvantages respectively

the purpose and function classification
truncation pneumatic valve is mainly used for truncation or flow through media. Including pneumatic valve, the cut-off pneumatic brake valve, pneumatic diaphragm valve, pneumatic ball valve, pneumatic valve, pneumatic valve, cock disk plunger pneumatic valve, ball plug valve, pneumatic valve needle type instrument, etc.
regulating pneumatic valve is mainly used for regulating the flow of medium, pressure, etc. Including regulating pneumatic valve, pneumatic valve, throttle pressure relief valve, etc.
check pneumatic valve classes are used to prevent backflow medium. Including all kinds of structure of the check pneumatic valve.
shunt pneumatic valve classes are used to separate, distribution, or mixed media. Including all kinds of pneumatic valve and the distribution of the hydrophobic structure pneumatic valve, etc.
security when the class in the overpressure of medium pneumatic valve safety protection. Including various types of security pneumatic valve.

(main parameters according to the classification A) According to the stress classification
vacuum pneumatic valve working pressure is lower than the standard atmospheric pressure of the pneumatic valve.
low pressure pneumatic valve PN is less than the nominal pressure. The pneumatic valve MPa.
middle pressure pneumatic valve nominal pressure PN. ~。 The pneumatic valve MPa.
high pressure pneumatic valve nominal pressure PN. ~。 The pneumatic valve MPa.
superpressure pneumatic valve nominal pressure PN is greater than that of MPa pneumatic valves.
( 2) According to the classification of medium temperature pneumatic valve t > C
high temperature pneumatic valves. Pneumatic valve C < t
medium temperature is less than the pneumatic valve C.
pneumatic valve - constant temperature The pneumatic valve C less than t less than C.
pneumatic valve - at low temperature C is less than t less than - The pneumatic valve C.
cryogenic pneumatic valve t is less than. . . The pneumatic valve C.
( 3) According to pneumatic classification
non-metallic materials pneumatic valve body material: such as ceramic pneumatic valves, pneumatic valves, glass fiber reinforced plastic plastic pneumatic valves.
pneumatic valves: metal materials such as copper alloy, aluminum alloy pneumatic valve, pneumatic valve lead alloy pneumatic valves, pneumatic valves, monel alloy titanium alloy pneumatic
cast iron valve pneumatic valve pneumatic valves, pneumatic valves, cast steel, carbon steel, low alloy steel pneumatic valve, pneumatic valve high alloy steel.
metal lining pneumatic valve pneumatic valves: such as lead-lined pneumatic valve, lining plastic pneumatic valves, pneumatic valves lining enamel.

general taxonomy this classification method is according to the principle, function and according to the structure division, is the current domestic and international the most commonly used classification method. General break-brake pneumatic valve, globe pneumatic valve, pneumatic butterfly valve, check valve, vacuum pneumatic valve, pneumatic valve safety hydrophobic pneumatic valve, pneumatic valve, throttle instrument pneumatic valve, plunger valve, pneumatic diaphragm valve, pneumatic valve, pneumatic ball valve, cock, regulating pneumatic valve, hand valve, filter, sewage, pneumatic valve, etc.