Coal water slurry gasification technology is one of the most advanced entrained-flow coal gasification technologies in the world, which will provide key technologies for the development of coal...
51. The absolute error It refers that the absolute error measurement results minus the measured (agreed) true value. 52. Relative error The absolute error is divided by the measured (agreed)...
The instrument is responsible for the measurement, monitoring and control of the whole factory, and tells us the operation of each device all the time. The instrument and control post guarantee the...
1. Structural length It refers to the distance between the inlet and outlet end faces of the valve, or the distance from the inlet end face to the outlet axis. 2. Structure length of...
The valve is a pipeline accessory used to open and close the pipeline. It controls the flow direction, and adjusts the parameters (temperature, pressure and flow) of the conveying medium. Do you...
As a pressure pipeline component, the pipeline ball valve bears not only the pressure of medium, but also the pressure caused by its uncertain factors, such as the bending load caused by unbalanced...
Valve is a common equipment in industrial manufacturing, which is mainly used to control the flow and cutoff of the medium. Affected by the environment, medium impact, corrosion, high-temperature...
The nodular cast iron pipe fittings include tees, elbows, couplings (such as socket types), etc. Their interfaces include socket, flange, etc. Nominal caliber ranges from DN80 to DN3000, and there...
The control valve is one of the terminal control components of the automatic control system. As there are many high-temperature and high-pressure working conditions in chemical plants, some media...
In a labyrinth, a number of circular sealing teeth are arranged around the rotating shaft in sequence, and a series of intercepting gaps and expansion cavities are formed between the teeth. When...
Production process automation is an important means to ensure efficiency and quality in large-scale industrial production. In the automation of the production process, the regulating valves used to...
1. Types of turbine valve control As the prime mover of large-scale high-speed operation of steam turbines, it is one of the main equipment in thermal power plants today. It is used to drag the...
1. Main performance parameters: It indicates the main parameters of the valve, such as nominal pressure, nominal opening and closing, and working temperature. 2. Nominal pressure: It is a...
The valve is a piece of common equipment in industrial manufacturing, which is mainly used to control the flow and cut-off of the medium. Valves are subject to environmental, medium impact,...
Valve is an important fluid control device in the industry, involving all walks of life, especially petroleum and petrochemical, liquid transportation and other industries. The emergence of CAD...
Overview of Domestic Valve Market As a key component of pipeline fluid control, plastic valves are widely used in the natural gas pipeline, heat pump heating and refrigeration pipeline system,...
The forced valve, also known as double-close double-section and relief function valve, was first used in airport oil depot, mainly used in the metering system, metering calibration system,...
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...