What kind of heating system is commonly used to pneumatic valve?

of pneumatic valves used by heating system are: as pneumatic pneumatic valve, gate valve, Pneumatic valve or gate) , butterfly pneumatic valves, pneumatic ball valve, non-return valve ( Check the pneumatic valve) , safe and pneumatic valve, pneumatic valve, pneumatic valve, decompression balance pneumatic valve, regulating valve and a variety of self regulating pneumatic valve and electric pneumatic valve adjustment.
with the pneumatic valve: used for cutting medium flow, transfer performance has a certain section, the pressure loss is big, often used for blocking the flow of steam heating system, in the pneumatic valve figure number with 'J' said by the pneumatic valve pneumatic valve gate: for truncation medium flow, when the pneumatic valve fully open, medium can be like by general pipe, through, do not need to change the direction of flow, pressure loss of the so small. The adjustment of the brake pneumatic valve performance is very poor, in the pneumatic brake valve figure number with 'Z' said pneumatic valve.
non-return pneumatic valve, also known as check pneumatic valve or one-way pneumatic valve, it allows the single direction of medium, if after pneumatic valve pressure is higher than before the pneumatic valve, pneumatic valve, non-return will automatically shut down. There are many types of non-return pneumatic valve type, mainly including: lift, swing, etc. Elevating the outside image by the pneumatic valve, pneumatic valve pressure loss is big, less so in the new type of heat exchanger station system. Marked 'H' in the pneumatic valve figure number.
butterfly pneumatic valve: by changing the Angle of the pneumatic valve can adjust and switch, the pneumatic disc is always in a liquid medium, so the formation of the resistance is larger, and therefore less to choose. Marked 'D' in the pneumatic valve figure number.
security pneumatic valve: overpressure is mainly used for medium pressure, in order to protect the equipment and systems. In some cases, the rev type pneumatic hydraulic safety valve improved constant pressure pneumatic valve can be used as a system. Security in the structure of pneumatic valve has a lot of, pneumatic valves are marked 'Y' type.