The performance of the reference to buy pneumatic valves

strength performance of pneumatic valve strength is the ability to pneumatic valve under media pressure. Pneumatic valve is under pressure of mechanical products, and therefore must have sufficient strength and rigidity, to ensure the long-term use without damage or deformation.

sealing pneumatic valve sealing performance is pneumatic valve sealing, to prevent the ability of the medium leaking, the most important technical performance index of pneumatic valve parts. Pneumatic valve seal has three parts: the opening and closing the points of contact between the parts and the pneumatic valve seat sealing surface; Packing and the distribution of pneumatic valve stem and packing and office; Pneumatic valve connected to the pneumatic valve cover. This is before the internal leakage, it is often referred to as loose leakage, affect the media's ability to cut off the pneumatic valve. To truncate the pneumatic valve, leakage is not allowed to leak, after two so-called leak, that is, from outside the pneumatic valve, pneumatic valve leakage of media. Leakage would cause material loss, environmental pollution, also can cause serious accidents. For flammable and explosive, toxic or radioactive medium, leakage is not allowed, therefore, pneumatic valve must have a reliable sealing performance.
mobile media

medium by a pneumatic valve can produce pressure loss ( Both before and after pneumatic valve pressure difference) Traffic is pneumatic valve has a certain resistance to the flow of medium, medium to overcome the resistance of the pneumatic valve will consume a certain amount of energy. From the consideration on the energy saving, design and manufacture of pneumatic valves, pneumatic valves to minimize resistance of liquid medium.

opening and closing force and closing torque opening and closing force and open-close torque is open or close the pneumatic valve must be imposed by force or moment. Close the pneumatic valves, need to open the sealed fat with certain pressure pneumatic seat sealing surface is formed between file, overcoming the pneumatic valve stem and stem between the friction between bearing and other parts of the pneumatic valve stem nut thread end packing friction, and thus must be shut down force and close moment, in the process of opening and closing of pneumatic valves, need to open/close force and open and change the last minute of its maximum is in the closed end transient or open the initial transient. Design and manufacture of pneumatic valves should strive to reduce the closing force and close moment.
speed

opening and closing speed is used to complete an open or close the pneumatic valve action to represent the time required. Pneumatic valves to open and close without strict with speed, but some of the operating mode of opening and closing speed have special requirements, such as some requirements quickly open or closed, to prevent accidents, slowly closing some requirements, to prevent water hammer, etc. The selection of pneumatic valve type should be considered. Sensitivity and reliability

this is medium parameters of pneumatic valves, and make corresponding response sensitivity. For throttling pneumatic valve, pneumatic valve decompression, used to adjust the pneumatic valve and safety valve, pneumatic valve with specific functions hydrophobic parameters of pneumatic valve, pneumatic valve medium it is very important to its function of sensitivity and reliability of the technical performance indicators. Life


the pneumatic valve, pneumatic valve is one of the important performance index of durability and economic significance. Usually to ensure that the required to open and close to the use of seals can also be used to represent the number of time.