English
Currency CNY
Hydraulic valve hydraulic proportional valve buy in Zhengzhou
Buy Hydraulic valve hydraulic proportional valve
Hydraulic valve hydraulic proportional valve

Hydraulic valve hydraulic proportional valve

Products from producer
In stock
Reconfirm the price with seller
Shipping:
Seller
China, Zhengzhou
(View map)
+86( 
Display phones
Technical characteristics
  • Brand丰骐
  • Country of manufactureChina
Description

Hydraulic valve hydraulic proportional valve for controlling the flow can be divided into two types:

One is the switch control: either fully open or fully closed, traffic is either the largest or the smallest, no intermediate states, such as normal straight-through electromagnetic valve, solenoid valve, electro-hydraulic valve.

Another is the continuous control: the valve port can be turned on at any of a degree of opening, whereby the flow is controlled by the size of such a valve with manual control, such as a throttle valve, and electronic control, such as proportional valves, servo valves .

Therefore, the purpose of using a proportional valve or servo valve is: electrically controlled manner to achieve the flow throttle control (of course, after structural changes may also be implemented pressure control, etc.), since it is the throttle control, it will have a loss of energy, servo valves and other valves is different, its larger energy loss, because it requires a certain flow to maintain the pre-stage control circuit work.

Structure principle

Input signal increases, the supply solenoid valve pilot valve 1 commutation, and the exhaust solenoid pilot valve 7 in the reset state, the gas pressure from the SUP port valve 1 into the pilot chamber 5, the pilot chamber pressure rises through the gas pressure in the top of the diaphragm 2, the diaphragm 2 and 4 will be connected to the gas valve open, exhaust valve 3 is closed, generates an output pressure. This output pressure by the pressure sensor feedback control loop 6 to 8. Here, a quick comparison with the target value correction knew output pressure proportional to the input signal up to give an output proportional to pressure changes in the input signal changes. In the absence of the nozzle flapper mechanism, so that the valve is not sensitive to impurities, high reliability.

Feature

1) enables pressure, speed stepless adjustment, to avoid the impact of the phenomenon of the switching valve normally-commutation of.

2) enables remote control and process control.

3) compared with intermittent control, system simplification, reduced pass element.

4) Compared with hydraulic proportional valve, small size, light weight, simple structure, low cost, but the response speed is much slower than the hydraulic system is also more sensitive to changes in load.

5) use of power, less heat, low noise.

6) does not fire, do not pollute the environment. Little affected by temperature changes.

Contact the seller
Hydraulic valve hydraulic proportional valve
Hydraulic valve hydraulic proportional valve
Shipping method
Compare0
ClearSelected items: 0