The welded flange is a part that connects pipes, and is connected to the pipe end. There are holes in the welding flange, and bolts make the two flanges tightly connected. So how should we all...
The valve relies on the cooperation of the valve body and the disk to control the conveying medium. After the valve is closed, the pressure at the inlet end and the outlet end are different,...
Hot-dip galvanized flanges have good corrosion resistance. They are immersed in molten zinc solution at about 500℃ after the flanges are made, formed and derusted, so that zinc layer is attached to...
Different appearance The end of the integral flange is thicker than that of the weld neck flange. The inner diameter of the integral flange is the same as the nominal diameter except for PN1.6 MPa...
The quick exhaust (inlet) valve is suitable for the pipeline with water as the working medium, so as to improve the efficiency of water conveying equipment and protect the pipeline from deformation...
Specialized production is an important basis for the practical function of flanged gate valves. The installation and operation of flanged gate valve matching the pipelines must be paid attention...
Many people want to buy something like stainless steel gate valves to help the engineering process and facilitate the operation. However, they don't know enough about the advantages and...
FQ41F flanged discharge ball valve is mainly used for the bottom discharge, discharge, sampling and no dead zone shutdown operation of reaction kettle, storage tank and other containers. The...
As we all know, there is an inevitable connection between the diameter of the valve and the size of the pipeline. Generally speaking, the diameter (outer diameter) matches the valve. The valve...
High temperature and high pressure gate valves have three obvious advantages and better service performance There are many kinds of gate valves in the market. When we choose to use...
2.4 Pay attention to the flow direction of valve medium to prevent valve failure. For valves like globe valve, throttle valve, pressure reducing valve and check valve, the medium has a certain flow...
2. Main measures to prevent leakage 2.1 Reasonable material selection to reduce the occurrence of corrosion As the carrier of the medium, the corrosivity of the medium has a critical impact on the...
1. Cause analysis of valve leakage 1.1 There are some quality problems for the valve itself. The parts of the valve which are prone to cause quality problems are divided into two parts. One is the...
As a common valve type in our daily industrial production, the high temperature butterfly valve has received the most attention in industrial production. High temperature butterfly valves are...
As the carrier of fluid in pipeline system, it is necessary to control the flow rate, pressure and flow direction of fluid. The equipment required in use is valve. As an important part of pipeline...
Taking elbows as an example, if long radius elbows are made, the specifications and materials should be selected at first. It can be calculated by theoretical method, and then cut as per this as...
Process control As the functionality of the valve becomes better, its structure becomes more complex. Therefore, higher processing technology is required to ensure the function. Now, each key part...
Abstract This article introduces the processing characteristics of residual oil, heavy oil, wax oil and gasoline desulfurization in chemical plants. In view of the leakage problem in the use of a...
Operating principles and functions The bypass hydraulic pressure relief valve with the above-mentioned structure is used in the fluid pipeline system. It is installed on the bypass pressure relief...
In the water pump pipeline system, when the pump is suddenly stopped, the check valve at the outlet of the pump is quickly closed, causing the circulation flow rate in the valve outlet pipeline to...