Solutions to loud noise of regulating valve
(1) Method of eliminating resonance noise Only when the regulating valve resonates, can there be energy superposition and produce a strong noise of more than 100 decibels. Some show strong vibration and low noise, while others have weak vibration and very high noise; Some have high vibration and noise. This noise produces a single tone […]
The international demand for valve products is declining, and improving competitiveness is a top priority
Valves are an important part of large-scale complete sets of devices, which are mainly used for cutting off, throttling, regulating pressure and changing flow direction of pipeline media (materials, water, steam, air, oil, etc.).
Common faults and treatment methods of valves
On the process pipeline or equipment, the installed industrial valves often have various faults due to the nature of the medium, the use environment, the frequency of operation, the product quality and other factors, which sometimes not only affect the production, but also bring disasters. Therefore, the protection should be strengthened and the faults should […]
Simple summary of Industrial Valves
Industrial valve is an important accessory to control the flow of medium in industrial pipeline. It can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.The valve is composed of valve body, opening and closing mechanism and valve cover.This paper focuses on the structural […]
Overview of insulation pipe fittings
Insulation pipe fittings mainly include insulation elbow, insulation elbow, insulation tee and cross, insulation reducer, etc. The insulation technology of polyurethane foam is adopted. Polyurethane foam has good mechanical properties and thermal insulation performance. Generally, it can withstand 120 ℃ and 180 ℃ by modification or combination with other thermal insulation materials.
Some structure of stainless steel flange
There are many types of stainless steel flange, but the basic types can be divided into the following three types. Integral stainless steel flange usually has a tapered neck, so it is also called long neck stainless steel flange. Usually, it is integrated with the vessel or pipe, and the stainless steel flange is only […]
Differences in manufacturing process between elbow and elbow
The essential difference between elbow and elbow is mainly the difference between “head” and “pipe”. In addition, there are also great differences in manufacturing technology. Elbow is a kind of connecting pipe fitting commonly used in plumbing installation, which is used for connecting at the bend of the pipe and changing the direction of the […]
What is Threaded Flange
Threaded flange refers to a kind of flange that uses threads to connect with pipes. In design, it can be treated as loose flange. The advantage is that there is no need for welding, and the additional torque to the cylinder or pipeline caused by flange deformation is very small. The disadvantage is that the […]
Installation of stainless steel valves
1. Before daily maintenance and installation of stainless steel valves, carefully check whether the model and specification of the valves used are consistent with the design; 2. Check whether the valve can be applied under the required conditions according to the valve model and factory manual;
Common problems in the use of valves
1、 Why can’t the double seal valve be used as a shut-off valve? The advantage of the two seat valve core is the force balance structure, which allows a large differential pressure. However, its prominent disadvantage is that the two sealing surfaces cannot be in good contact at the same time, resulting in large […]
