The difference between servo pneumatic valve and proportional solenoid

proportion servo pneumatic valve and the difference between pneumatic valve are no strict rules, because the proportion of pneumatic valve performance is getting better and better, gradually to be near servo pneumatic valve, so in recent years the proportion servo pneumatic valve. Now is to introduce the proportion of pneumatic valve and what is the difference between servo pneumatic valve.
proportion of pneumatic valve and servo pneumatic valve difference mainly reflects in the following:
. Different driving devices. Proportion of pneumatic valve drive is proportional electromagnetic valve; Motor servo pneumatic valve drive is force or torque motor;
。 Performance parameters are different. Hysteresis, in a dead zone, character such as bandwidth, filtration precision is different, so different applications, servo pneumatic valve and servo proportional pneumatic valve is mainly used in closed loop control system, the proportion of other structural pneumatic valve is mainly used in open-loop control system and the closed loop speed control system;
。 No dead zone, proportion in the servo pneumatic valve in the pneumatic valve has a dead zone;
。 The frequency response of the servo pneumatic valve ( Higher response frequency, can be as high as about Hz, the proportion of pneumatic valve is generally highest dozens of Hz;
。 Servo pneumatic valve of hydraulic oil demand higher, need to fine filtering, otherwise easy to jam, low proportion of pneumatic valve;
。 Pneumatic valve core structure and machining accuracy are different. Proportion of pneumatic valve adopts pneumatic valve core + pneumatic valve body structure, pneumatic valve and a pneumatic valve sleeve. Pneumatic valve adopts pneumatic servo pneumatic valve and servo proportional valve core + the structure of the pneumatic valve set.
。 The median function of different kinds. Proportional reversing pneumatic valve is similar to ordinary reversing pneumatic valve of a function, and the servo pneumatic valve function only O ( E Rexroth products.
。 Rating of the pneumatic valve pressure drop is different.
and proportion servo pneumatic valve performance between servo pneumatic valve and proportional solenoid. The proportions of the
the reversing pneumatic valve belongs to a kind of pneumatic valve, used to control flow and flow.