Check the kinds of pneumatic valve

check pneumatic valve ( 一个- - - - - - Way valve: check pneumatic valve, also known as one-way pneumatic valve or non-return valve, its role is to prevent the backflow medium pipeline. Pump suction off hand of pneumatic valve also belong to the check valve class.
NRVG mute type check pneumatic valve
check pneumatic valve ( The Check Valve: is it can automatically prevent fluid backflow of pneumatic Valve. Check the pneumatic valve pneumatic valve under the effect of fluid pressure open, fluid flow from inlet side to side. When the import side pressure is lower than the export side, pneumatic valve in the fluid pressure difference, itself under the action of gravity factors such as automatically shut down to prevent fluid backflow check pneumatic valve ( The Check Valve: generally divided into the lift, swing, butterfly and diaphragm type several types.
lift check the structure of the pneumatic valve is generally similar to stop pneumatic valve, pneumatic disc along the channel to the line in the lifting movement, reliable action, but the fluid resistance is bigger, the occasion of light is suitable for small diameter. Aerodynamic lift check valve can be straight through and vertical two kinds. Straight-through lift check pneumatic valve generally can only be installed in a horizontal pipe, and the vertical lift check pneumatic valve is generally installed in a vertical line.
swing check pneumatic valve pneumatic disc around the axis of rotation. The fluid resistance is generally less than the aerodynamic lift check valve, it is suitable for large caliber of occasions. Swing check pneumatic valve according to the number of the pneumatic valve can be divided into single swing, more than double disc swing and swing three segments. Single swing check pneumatic valve is generally applicable to medium caliber. Large diameter single swing check pneumatic valve is used in the pipeline, to reduce the water hammer pressure, had better use can reduce the water hammer pressure slowly-closing check pneumatic valve. Double disc swing check pneumatic valve applicable Yu Dazhong diameter pipeline. The pneumatic valve, double valve swing check valve structure is small, light weight, rapid developing check is a kind of pneumatic valve; Many disc swing check pneumatic valve is suitable for large diameter pipeline.

butterfly check pneumatic valve pneumatic valve's structure is similar to a butterfly. Its simple structure, small flow resistance, water hammer pressure is small.

type check pneumatic diaphragm valve has a variety of structural form, adopt the diaphragm as open-close part, hammer due to its waterproof performance is good, simple structure, low cost, rapid development in recent years. But the diaphragm type check the use of pneumatic valve temperature and pressure is limited by a diaphragm material.

DDCV double disc non-return pneumatic valve

check pneumatic valve ( Check Valve: standard swing Check air flue Check Valve pneumatic auxiliary Check pneumatic clamp Check pneumatic Valve

slowly-closing Check pneumatic Valve vertical Check pneumatic Valve mute Check pneumatic Valve Check Valve price micro resistance slowly-closing Check pneumatic Valve

H wafer double disc swing Check Valve pneumatic Valve water hammer pressure is small, pneumatic disc shorter ones, and there is spring assisted closure,

close the pneumatic Valve speed

H flange single swing Check pneumatic Valve is very big, pneumatic disc stroke length, need longer closing time

H of the water hammer pressure is H / ~ /

ball type sewage Check pneumatic Valve: all channel structure is used in pneumatic Valve with large flow, the advantage of small resistance. Adopts pneumatic valve ball do, suitable for high viscosity, suspension of industrial and living sewage pipe network

return to pneumatic valve: check the pneumatic valve ( 一个- - - - - - Way valve, also known as a one-way pneumatic valve or non-return valve, its role is to prevent the backflow medium pipeline. Pump suction off hand of pneumatic valve also belong to the check valve class.

open-close part by medium flow and power on or off, in order to prevent the backflow medium pneumatic valve is called check pneumatic valve. Check pneumatic valve belong to automatic pneumatic valve class, mainly used for medium on the one-way flow of pipeline, only allowed to medium flows in one direction, in order to prevent accidents. （ According to the double pneumatic valves)