The application range of the pressure controller is very wide, at present, in the oil pumping equipment in the field, the application of the beam type beam pumping unit is the most common, the number is also the most. The main features of the pressure controller are as follows:

1, the use of British pipe thread, quick joint or copper tube welding installation, installation is flexible and convenient, without special installation fixed.

2, fixed pressure switch at the beginning of the plug and wire type two connection mode for users to choose.

3, the pressure range can be selected according to the user's value of the value of manufacturing.

Working principle of pressure controller is relatively simple, mainly when the system pressure is higher or lower than the rated pressure of the safety, occurrence of disc instantaneous motion sensors, by connecting rod push switch connector connected or disconnected when pressure drop or rise rated recovery value, disc instantaneous reset, automatic reset switch, or simply that is when the measured pressure exceeds the rated value, resulting in displacement of elastic element free end, directly or after comparing push switch element, change switch element to control the on-off state of the measured pressure to. The elastic components used in pressure switch are single coil spring tube, diaphragm, bellows and bellows.

In practical applications, the pressure controller can be classified according to the specific application of the selection, the common can be divided into two types of mechanical and electronic type, mechanical pressure switch and a variety of electronic type is also divided into various. Now the pressure controller used for gas pressure controller, gas pressure controller is used to control the engineering machinery walking brake braking system, the air pressure is maintained at 0.70Mpa, to meet the driving requirements of the components supporting system.