Industry News
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Introduction of valve materials for seawater desalination
In recent years, with the improvement of people’s living standards and industrial development, the consumption of fresh water has increased year by year. In order to solve the water problem, many large-scale desalination projects are under intense construction in the country. In the process...Read more -
The operating temperature of the valve
The operating temperature of the valve is determined by the material of the valve. The temperature of commonly used materials for valves is as follows: Valve operating temperature Gray cast iron valve: -15～250℃ Malleable cast iron valve: -15～250℃ Ductile iron valve: -30～350℃ High nic...Read more -
Installation of common valves
Installation of gate valves Gate valve, also known as gate valve, is the use of gate to control the opening and closing of the valve, by changing the cross section to adjust the pipeline flow and opening and closing pipeline. Gate valves are mainly used for the pipeline of full open or full ...Read more -
Valve selection instructions
1. Selection of gate valve In general, gate valves should be preferred. Gate valves are not only suitable for steam, oil and other media, but also for medium containing granular solids and large viscosity, and suitable for vent and low vacuum system valves. For media...Read more -
About the use of check valves
Usage of check valve 1. Swing check valve: The disc of the swing check valve is disc-shaped, and it rotates around the shaft of the valve seat passage. Because the inner passage of the valve is streamlined, the flow resistance ratio increases. The drop check valve is small, suitable for low flo...Read more -
What conditions need to be met when stainless steel valves are sealed
Valves are used as a complete set of air separation equipment in chemical systems, and most of their sealing surfaces are made of stainless steel. In the grinding process, due to improper selection of grinding materials and incorrect grinding methods, not only the production efficiency of the val...Read more -
Regulations and requirements for pipeline valve installation
1. When installing, pay attention to the direction of medium flow should be consistent with the direction of the arrow voted by the valve body. 2. Install a check valve before the condensate after the trap enters the recovery main pipe to prevent the condensate from returning. 3. Rising stem valv...Read more -
What are the valves for sea water
Reasonable selection of valve type can reduce material consumption, reduce local resistance and energy consumption, facilitate installation and reduce maintenance. In this article, Dongsheng Valve has introduced to you which valves are used for seawater. 1.Shut-off valve...Read more -
General requirements for the installation of seawater valves
The installation position of the valve should be arranged centrally on one side of the device area, and the necessary operation platform or maintenance platform should be provided.Valves that require frequent operation, maintenance and replacement should be located on th...Read more -
Valve material: what is the difference between 304, 316, 316L?
Valve material: what is the difference between 304, 316, 316L? "Stainless steel" "steel" and "iron", what`s characteristics and the relationships are they? How is 304, 316, 316L come, and what is the difference between each other? Steel: Material with iron as the pr...Read more
