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The control valve structure is divided into the following: single seat control valve, sleeve control valve, cage control valve, double seat control valve,3-way control valve, angle control valve and other common mechanisms. The Specific control valve application is as follows: 1. single seat control valve application: suitable for strict leakage, low pressure difference before and after valve and a certain viscosity occasion. 2. […]

What is the difference between full lift and low lift safety relief valve?we give you a brief introduction about the full lift and low lift safety relief valve. Full lift safety relief valve: when the static pressure at the entrance of the safety relief valve reaches the setting pressure, the disc will rise to the maximum height and discharge the over-pressure medium in the maximum

How to reduce the air leakage rate of pneumatic vacuum ball valve: 1. pump and pneumatic vacuum ball valve connected to the pipeline, the use of arc transition, so that the gas road is not blocked, can be unimpeded. 2. as far as possible to avoid dead corners, should use high precision polishing, fully meet the

Pneumatic control valve error verification method 1. Pneumatic control valve Basic error verification The specified input signal is input actuator (or positioner) steadily in the direction of increasing or decreasing, the corresponding stroke value of each point is measured, and the error of each point between the actual “signal-stroke” relationship and the theoretical relationship is

Floating ball valves are a type of ball valve where the closing system stays suspended, which means it has a very simple design and operation, so it can be used for applications where the most important factors are the speed to open or close the flow, easiness to change the direction of such flow or

Trunnion mounted ball valve is an essential device for regulating the flow of fluids- steam, gas, or oil in pipeline. It is quarter-turn designs with a ball capable of rotating 90 degrees on its axis to either block or allow the flow of fluid. These valves have a spherical disk design at the center, which

With the continuous development of petrochemical industry and other professions, China’s valve industry has been advancing. Over the past decade, the domestic policy and economic situation have improved, which has provided favorable conditions for the development of the valve profession, and its rising space is infinite. At present, domestic petrochemical and other companies are facing

Jacketed ball valve is a type of ball valve with constructed or welded jackets on the valve body. The jackets are used for heating or cooling the media flowing through the valve to prevent crystallization or seizing. Jacketed ball valve used in heating applications are designed with heating jackets that help to provide high-temperature steam

Valve positioner is an important accessory in pneumatic valve to regulate flow. It is usually used with pneumatic actuator to control the opening of valve by receiving 4-20mA signal from controller or control system, so as to control the process parameters of pipeline media accurately. Valve positioner and pneumatic actuator are matched, and then connected

In the traditional concept, butterfly valves can only be used in situations with low temperature, low pressure, and low sealing requirements. With the continuous development of modern process technology and material industry, the application range of butterfly valves has far exceeded the past, and can almost replace most traditional valves, widely applicable in various fields