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Technical Article

Technical characteristics of special hydrophobic control valve for alumina

In the alumina production process, the steam trap is the key valve in the high pressure dissolution production. In the past, due to the large volume of the alumina hydrophobic level control …

Technical characteristics of special hydrophobic control valve for alumina

April 29, 2019

Level control valve accessories introduction complete works

The level control valve positioner is the main accessory of the pneumatic actuator. It is used with the pneumatic actuator to improve the position accuracy of the valve and overcome the infl…

Level control valve accessories introduction complete works

April 23, 2019

Model Characteristics and Fault Analysis of 3-Way control valve

The ZJHF(H) type 3-Way control valve produced and sold by Datian Valve has two modes of three-way combined flow and three-way splitting. In some cases, it can be widely used instead of two t…

 Model Characteristics and Fault Analysis of 3-Way control valve

April 22, 2019

The reason and treatment of the pneumatic control valve is not tight

Pneumatic control valves often present some troublesome problems during use. For example, if the pneumatic control valve is not tight and the door is not tight, what should I do? Under no…

The reason and treatment of the pneumatic control valve is not tight

April 22, 2019

Leakage and solution at the level control valve packing

External leakage of pneumatic control valve The external leakage of the pneumatic regulating valve is easy to find. For example, the packing gland is not pressed, the PTFE packing is dete…

Leakage and solution at the level control valve packing

April 18, 2019

How to correctly choose the positive and negative ways of pneumatic control valve

The working mode of the pneumatic control valve is air opening and gas closing. The opening of the air opening valve increases with the increase of the signal pressure. When there is no pres…

How to correctly choose the positive and negative ways of pneumatic control valve

April 18, 2019

What are the general requirements for the installation of the globe type control valve?

The installation position of the globe type control valve should meet the requirements of the process design, and should be close to the one-point indicating instrument related to it, so tha…

What are the general requirements for the installation of the globe type control valve?

April 18, 2019

Three-way control valve structure and use characteristics

3-Way control valve structure The three-way control valve has three inlets and outlets connected to the pipeline, which is equivalent to the integration of two single-seat valves. Accordi…

Three-way control valve structure and use characteristics

April 12, 2019

Cavitation in Control valve

From Wikipedia, the free encyclopedia Cavitation is the formation of vapour cavities in a liquid, small liquid-free zones ("bubbles" or "voids"), that are the conseque…

Cavitation in Control valve

June 20, 2018

About Control Valve

From Wikipedia, the free encyclopedia A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller.[1] This enab…

About Control Valve

June 20, 2018

Usage of Valve Standards in China

Valve products have been widely applied in petroleum, chemical engineering, nuclear power, metallurgy, electric power, hydraulic power, large coal chemical industry and other industries. Tot…

Usage of Valve Standards in China

May 14, 2018