Vacuum valve of classification and application scope 1. Vacuum valve of classification What is a vacuum valve? The valve with nominal pressure lower than standard atmospheric pressure is called vacuum valve. Vacuum valve can be divided into three categories according to working pressure, i.e. vac...

Resistance vacuum gauge is one of the heat conduction vacuum gauges. The pressure is reflected by the change of the resistance of the hot wire. In the process of measuring the change of hot wire resistance, according to the different methods of measuring the change of hot wire resistance, the res...

The ionization vacuum gauge is a vacuum measuring instrument based on the principle that the pressure of the gas to be measured is proportional to the ion flow produced by gas ionization under certain conditions. The utility model is composed of a cylindrical collector, a grid and a filament in t...

There are three kinds of shaft end seals commonly used in Roots blower: gland type, frame type and mechanical seal. What are the characteristics of these sealing methods? 1、 Gland type This is a simple and commonly used sealing form, most of which are used for conveying air. There are four gland...

SSR150 roots blowers for desulfurization and oxidation If the blowers diameter is 300 caliber according to the standard, but the connecting pipe is less than this caliber, then the blowers may face overpressure. Sometimes it is inconvenient for equipment maintenance, monitoring and piping arrange...

Vacuum drying, also known as analytical drying, is a method of drying materials by placing them under negative pressure and heating them to boiling point properly under negative pressure, or cooling them to solidify them, and then drying them through melting point. Vacuum drying technology has be...

Many customers will encounter the problem of low vacuum when using the rotary vane vacuum pump. What is the reason? How to solve it? Here EVP vacuum pump manufacturer summarizes some methods to improve vacuum degree of vacuum pump, and provides reference for everyone to learn, hoping to help you....

Roots blower is a kind of high-speed machine, which will produce slight vibration during operation. To ensure a stable working environment, it must be fixed on a stable floor during installation. First, you should choose a quiet, low-income environment for installation. If you install it in a cro...

Vacuum pouring technology of FRP and its advantages Vacuum perfusion technology is a kind of process technology using vacuum pressure to make molding. The concept is to directly lay fiber reinforced materials and foam materials on the mould, then close the positive and negative mould (Yin Yang mo...

Excimer and gas laser When using gas lasers or excimer lasers, it is essential that the gas mixture be pure. Therefore, the correct exhaust chamber is the key step in the manufacturing process of gas laser and in the normal operation of excimer laser. In the excimer laser, the used premixed gas n...