Cylinder Direction Valve of the Five Principles of Selection

The cylinder direction valve is mainly used to change the direction of compressed air flow and gas flow break state, so as to control the action and state of pneumatic components change. What are the selection principles of the cylinder direction valve? 

That today we share relevant basic knowledge for you, for your reference.

1. The selection of valve installation should be based on the quality level of the valve, the system occupying space requirements, and easy maintenance, and other comprehensive considerations.

At present, the widely used directional valve in China is a plate type installation mode, which has the advantage of being easy to install, disassemble, and maintain. The IS0 standard also adopts the board type installation mode and develops the board type installation mode. Therefore, it is recommended to adopt the plate installation mode first.

However, due to the continuous improvement of component quality and reliability, the valve of tubular installation mode occupies little space and can also be assembled and installed, so it has been applied. So, when choosing, should decide according to the actual situation.

2.  Try to choose standardized products

Because the standardized products adopt the means of mass production, the quality is stable and reliable, the degree of generalization is higher, the price is cheap.

 Marine Power Parts Valve for Weichai 160

3. The selection of valve price should be in line with the system level and reliability requirements

The price of the valve should be considered according to the advanced degree and reliability requirements of the pneumatic system. In the guarantee system advanced, reliable, easy to use under the premise of reasonable price, do not disregard the quality and the pursuit of low cost.

4. The design of a large control system, to consider the use of integrated valve and signal bus control type.

5. The selection of the flow capacity of the valve should meet the requirements of the system

In other words, according to the requirement of the pneumatic system for the instantaneous maximum flow of components, the valve size should be calculated according to the average flow speed of 15~25m/s, and then the C value (or Ky value), Cy value, pressure drop underrated flow, standard rated flow and S value of the required valve can be found out. Accordingly, the valve that meets the requirements of the system's flow capacity can be selected.