VITAL Butterfly Valve…

What are the three types of swing check valves? A valve that opens and closes with the force of the medium flow to prevent the backflow of the medium is called a check valve. Check valves belong to the category of automatic valves. Mainly used in pipelines where the medium flows in one direction, allowing the medium to flow in only one direction to prevent accidents.…

As one of the indispensable equipment in industrial production, valves may encounter many problems from selection to use to maintenance.…

The difference between rubber lined butterfly valve and rubber butterfly valve, the difference between rubber lined butterfly valve and plastic lined butterfly valve The rubber lining in rubber lined butterfly valve is to use high temperature to vulcanize rubber and valve body at high temperature, which has very high corrosion resistance. It is used to control some corrosive fluids with strong aci…

1: The sealing surface leaks 1. There are sundries in the butterfly plate and sealing surface 2. The closing position of the butterfly plate and the sealing surface is not properly matched 3. The flange bolts on the outlet side are not uniformly stressed or not according to the requirements of Figure 1 4. The pressure test direction is not as required in Figure 1…

Electric butterfly valve is a kind of regulating valve device used in automatic control system. The control principle of the valve is that it can lead and control the closing of the valve according to the signal of the power supply. Electric butterfly valve has many functions. It is a multi-functional valve that integrates check valve, control valve and shut-off valve.…

With the wide use of butterfly valves, the characteristics of convenient installation, convenient maintenance and simple structure are becoming more and more obvious. Electric soft-seal butterfly valves, pneumatic soft-seal butterfly valves, and hard-seal butterfly valves have begun to replace electric gate valves and globe valves in more and more occasions. Valves are commonly used equipment for …

Metal valves can be said to be the key component structures that are most prone to corrosion and failure in engineering equipment. Usually, the sealing surface, valve stem, diaphragm, small spring and other valve parts of metal valves are generally made of first-class materials, and the valve body and valve cover are suitable for For secondary or tertiary materials, for valves used in high pressur…