as the name implies it is using pneumatic valve solenoid to control the industrial equipment, it can effectively control of hydraulic, pneumatic and other fluid.
Can adjust the direction of the medium in the whole industrial system, flow and other parameters.
Electromagnetic air valve model has a lot of kinds, each model has its own characteristics, the following we will introduce several kinds of electromagnetic characteristics of pneumatic valve type.
A pneumatic valve, electromagnetic
the P O symbol said inlet, T said oil return, A and B said oil mouth.
Structure features: during a median, the oil mouth closed, oil circulation.
Function characteristics:, into a working device, oil return all closed, working organs can be fixed in any motionless, even with external force can make work organization to move or go around, and therefore cannot be used with hand.
, from stop to start smoothly, because of work in the oil return cavity filled with oil, can be a buffer role, when the pressure oil to promote job agencies began to exercise, because of the influence of the oil resistance and make its speed is not fast, brake when motion inertia cause hydraulic impact is bigger.
, oil pump cannot be unloaded.
And the reversing precision is high.
2, solenoid pneumatic valve H symbol structure features: during a median, the oil mouth open, no oil pressure system.
Function characteristics:, inlet, oil return T P with oil mouth of A and B all connected, make work institutions into A floating state, the action of external force can exercise, can be used with hand.
Can, hydraulic pump unloading.
And from stop to launch a shock.
Because work stops oil return cavity of the oil has flow back to the fuel tank, no oil buffer role.
When braking oil mouth, so the brake is type O smoothly.
, for single pole double oil cylinder, due to the effective area on both sides of the piston, and use the function of pneumatic valve can not completely piston in a stopped state.
3, M type pneumatic valve symbol structure features: in the median, the working oil mouth shut down A, B, inlet P, oil return T directly connected.
Function characteristics:, because working oil A and B closed mouth, working organs can remain static.
Can, hydraulic pump unloading.
And cannot be used with hand device.
, from stop to start smoothly.
, braking when motion inertia cause hydraulic impact is bigger.
, can be used in the oil pump unloading and hydraulic cylinder lock hydraulic pressure in the back.
4, Y type pneumatic valve symbol structure features: in the median, the oil inlet P closed, working oil port A and B and the oil return port T is same.
Function characteristics: mouth, because work oil A and B and return oil mouth T are interlinked, working organs in A floating state, can follow the effect of external force and movement, can be used with hand.
, from stop to start some impact, from static to the impact of the startup and braking performance between type and H type.
, oil pump unloading.
5 and P type pneumatic valve symbol structure features: in the median, the oil return T closed mouth, inlet oil mouth with work P A and B is same.
Function characteristics:, for equal diameter double pole double-acting cylinder, piston at both ends of fluid pressure balance each other, can stop the fixed work institutions.
Can also be used to with hand device.
But for a single pole or double pole ranging in diameter double oil cylinder, of job agencies were dormant and differential.
, from stop to start smoothly, brake cylinder when both cavity pressure oil so smooth braking.
, oil pump unloading.
, directional change smaller than H, wide application.
Six pneumatic valve, electromagnetic
X symbol structure features: during A median, A, B, P oil mouth with T oil mouth is same.
Function characteristics: mouth, the oil and oil return T connected, is in a state of half, because of the existence of throttling mouth, P oil mouth still maintain a certain pressure.
, in A moment in the pneumatic valve moves to make P, A, B and T oil mouth and A half on, so that you can avoid in the process of reversing caused by pressure oil mouth P suddenly block and the reversing impact.
Oil pump unloading.
, commutation performance between type and H type.
7, solenoid pneumatic valve symbol U structure features: A, B work oil through mouth, inlet P, oil return T mouth closed.
Function characteristics: mouth, because working oil A and B, working device in A floating state, the action of external force can exercise, can be used with hand device.
, from stop to start smoothly.
And when braking is more stable.
, oil pump unloading.
Eight pneumatic valve, electromagnetic
K type symbol structure features: in the median, the oil inlet P and work with A mouth to mouth T connect with, and the other working oil mouth closed B.
Function characteristics: can, oil pump unloading.
And two different direction reversing time performance.
9, J type pneumatic valve symbol structure features: oil inlet P and work A closed mouth, another work oil outlet connected to the oil return mouth T B.
Function characteristics: can't, oil pump unloading.
And two different direction reversing time performance.
10 pneumatic valve, electromagnetic type C symbol structure features: inlet P oil mouth A connected with work, work and the other oil mouth B and oil return T connected.
Function characteristics: can't pump unloading;
From stop to start smoothly, brake have a larger impact.
through the above all kinds of electromagnetic analysis of the characteristics of the pneumatic valve type, we can choose the suitable solenoid pneumatic valve.
Electromagnetic pneumatic valve has many advantages such as: system is simple, cheap;
Leakage is easy to control, the use of safety;
Appearance is lightweight, low power and so on.
A variety of models to meet the needs of various customers, this is also the reason of electromagnetic pneumatic valve is widely used.