Overview of O-rings 1. Definition O-rings are rubber sealing rings with a circular cross-section. Because their cross-section is O-shaped, they are called O-form sealing rings, also known as...
Valve terminology for its structure and parts is also important in daily operation and maintenance. Valve Structure Terms 1. The structure length (face-to-face dimension, face-to-center...
Valves are pipeline accessories used to open and close pipelines; control flow direction; adjust and control parameters (temperature, pressure and flow) of conveying medium. Valve terminology is...
1. Aerodynamic noise Aerodynamic noise is caused by gas or steam flowing through the orifice. The noise of control valves encountered in the industry is mostly aerodynamic noise. Gas and steam are...
Since the reform and opening up, the valve industry has developed rapidly and made great progress in manufacturing capacity and complete sets of technologies. As an integral part of the pipeline...
1. During installation, pay attention that the direction of the medium flow should be consistent with the direction of the arrow on the valve body. 2. Check valves should be installed after the...
In the fluid pipeline system, the control valve is the control element, and its investment accounts for about 30% - 50% of the pipeline project cost. The main functions of the valve are opening and...
Installation of safety valves Safety valves are special valves whose opening and closing parts are commonly closed under the action of external force. When the medium pressure in equipment or...
Inspection before valve installation 1. Carefully check whether the valve model and specification meet the drawing requirements. 2. Check whether the valve stem and disc are open flexibly and...
Advantages of high differential pressure control valve: 1. Due to the structural principle of circulating convection and multistage pressure reduction, the valve can effectively avoid cavitation...
Stainless steel globe valves also have strong stability The globe valve is one of the most commonly used valve bodies at ordinary times, so it will have certain necessities when it is used. Of...
Stainless steel globe valves have their own performance advantages in many aspects when they are used, so what are their advantages? First of all, when they are used, they have good convenience...
Actually, the most important thing to pay attention to is its influence on the resistance for the globe valve. When the resistance increases, it will first increase the transmission power, which...
Stainless steel gate valves have good rust resistance when in use. In fact, it is necessary for a gate valve to achieve good performance in this respect. On the one hand, when it is in use, it...
There are different types of stainless steel gate valves. Generally speaking, they can be divided into two types, namely wedge gate valves and parallel gate valves. Their biggest difference lies in...
In the whole pipeline transportation process, stainless steel gate valves will be used. What role can they play in the whole process? Its main function is to adjust the shape, that is, to achieve...
Proportional integral control valves can adjust the flow of steam or hot and cold water, which is widely used in the fluid control of central air conditioning, heating, water treatment, industrial...
Bellows valves need to use a small (valve size about Φ2mm) medium and low-pressure valve with hydrogen embrittlement resistance, corrosion resistance and radiation resistance in hydrogen and...
1. The internal parts can be improved. The original design has many internal parts, a complicated structure, and unreasonable connection and fastening methods. In actual production, the failure of...
Weld neck flanges refer to the flange with neck, round pipe transition, and butt-welding connection with pipes. The weld neck flange is a kind of disk-shaped part, which is common in pipeline...