In terms of operational efficiency and energy savings, the use of automatic control valves is an indispensable part of the traditional industry commonly used manual valves, pneumatic valves, in terms of installation costs and efficiency are not as good as electric valves.

If there is a slight leakage at the packing, the stem nut must be locked again. But do not lock too tight, usually lock again 1/4 turn ~ 1 turn, the leakage will stop.

Ball valves are divided into: floating ball ball valves, fixed ball ball valves, orbital ball valves, V-shaped ball valves, three-way ball valves, stainless steel ball valves, cast steel ball valves, forged steel ball valves, ash discharge ball valves, sulfur-resistant ball valves, pneumatic ball valves, electric ball valves, ferrule ball valves, welded ball valves.

Domestic market valve manufacturers about more than 2300, can provide the valve products have several categories, more than 3500 varieties, more than 40,000 specifications. Here's an introduction to the classification of valves!

The so-called pneumatic valve, specifically refers to the cylinder as an actuator, with compressed air as the power source to achieve the valve drive, in order to achieve the adjustment of the switch. When the regulating pipeline receives the control signal from the automation control system, it will adjust the temperature, pressure, flow and other related parameters. In general, pneumatic valves are characterized by reliability, fast response and simple control. In the specific operation process, the regulating air chamber input 0.02-0.10MPa signal pressure, the film will appear thrust, in the process of thrust disc downward movement will be compressed spring, to achieve the valve stem, push rod and spool downward movement, to achieve the purpose of valve adjustment.

Gate valve is the closing member (gate) along the vertical direction of the axis of the channel to move _ the valve, in the pipeline mainly as a cut-off medium with, that is, fully open or fully closed use. In general, the gate valve may not be used as a regulating flow. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and can be different materials according to the valve. But the gate valve is generally not used in the pipeline for transporting slurry and other media.