Which vacuum valve is reliable

As an important component in the vacuum system to connect or cut off the pipeline and adjust the gas volume, the vacuum valve is often encountered in the construction of the vacuum system. In today’s small class, we will popularize the quick identification method of the vacuum valve model. Before understanding the vacuum valve model, you can review the general classification of vacuum valves in "Screw Vacuum Pump Manufacturers Breaking Down the Components of Vacuum System". According to so many types of vacuum valves, JB/T7673-95 specifies the specific preparation of vacuum valve models. rule.

Technical transformation of high-vacuum valves lags behind: old factories, old equipment, and old technology still dominate. Although several companies have moved in recent years, they have improved, but the overall manufacturing level, process level, and testing level are still lagging behind. Enterprises cannot be compared. The technical transformation problems left over from the old system may be difficult to eliminate in the short term. The obsolete equipment, the backward technology and the low product level, exist in almost every enterprise in the industry. The overall technology of the vacuum pump is not behind.

Beipiao Vacuum Equipment Co., Ltd. (formerly Beipiao Vacuum Valve Factory) was established in 1966 and is a designated enterprise of the former Ministry of Machinery and Electronics. The total area of the plant is over 50 acres. The main plant is located in the Taiji Management Zone of Beipiao City. The new plant is located in the Light Textile Industrial Park of the Economic Development Zone of Beipiao City. The total investment exceeds 100 million yuan. There are 62 employees, including 12 engineers and technicians. The company has more than 100 sets of various processing and manufacturing equipment and nearly 20 patented technologies. Over the years, it has been innovating and making progress. It has grown into a professional vacuum acquisition, A high-tech enterprise engaged in vacuum application technology development and equipment manufacturing.

After the high vacuum flapper valve test, the joint and the sealing part of the valve body are deformed at the same time, and the sealing surface of the valve body will produce indentation, which is not conducive to multiple sealing. If the joint and the outer nut are rotated together during the tightening of the outer nut, it will be damaged On the sealing surface of the valve body of the product, foreign matter of the vacuum valve is embedded between the diaphragm and the valve seat, compressing or abrading the diaphragm; prevention and elimination method: do not force to close during operation, and open and close repeatedly up and down several times. After the foreign matter is washed away, the valve is officially closed. ; Replace in time when the diaphragm is damaged.

Vacuum valve 1. Unique sealing structure design, leakage rate can reach <1×10-10Pa, M3/S, which changes the status quo that ball valves cannot meet high vacuum and ultra-high vacuum; 2. Small switching torque, small electric actuator, Stable and reliable work; 3. Compact structure, light weight, simple and beautiful appearance; 4. The valve can be used under high vacuum and a certain positive pressure; 5. Because the ball valve is fully conductive, it can reach super High vacuum requirements, so it can also be applied to accelerator vacuum systems.

The company is located in Beipiao City, Liaoning Province, in the west of Liaoning Province, with the Bohai Sea in the south and Inner Mongolia in the north. It is an important part of the Bohai Rim Economic Circle. Beipiao City is rich in fossil resources and mineral resources. 44 types of mineral resources have been proven. Among them, gold mineral reserves are very rich, and the fossil industry is prosperous and diverse. It is known as "the world's first bird flying and the first flower blooming." The reputation of "place".

Which vacuum valve is reliable

Before using the above method of screwing out valve bolts, some conventional measures should be taken, such as kerosene soaking and cleaning the surface of oil stains and rust (this is especially important for the screwing method of spot welding, otherwise the welding is not strong), if necessary, It is also possible to heat around the bolts of the vacuum valve and unscrew the bolts under thermoplastic conditions. For the unscrewed bolts, chemical corrosion methods can also be used to properly clean the rusty and corroded bolts and screw holes, which will accelerate the breaking Unscrew the head bolts (after unscrewing the bolts, flush the screw holes with water to prevent the remaining chemicals from corroding the valve parts).

The sealing performance test of the high vacuum flapper valve The opening and closing force and opening and closing torque of the vacuum flap valve refer to the force or torque that must be applied to open or close the valve. When closing the valve, it is necessary to make the sealing surface of the opening and closing part and the seat A certain seal specific pressure is formed between them, and the friction between the valve stem and the packing, between the thread of the valve stem and the nut, the end support of the valve stem and other frictional forces must be overcome, so a certain closing force and Closing torque, the required opening and closing force and opening and closing torque of the valve change during the opening and closing process, and the maximum value is at the final moment of closing or the initial moment of opening.

The transportation in Beipiao City is very convenient. The Beijing-Shenzhen high-speed railway can directly connect to Beijing, Shenyang and other cities. National highways 101 and 305 and Changshen Expressway run through urban and rural areas. The central city is 45 kilometers away from Chaoyang Airport and 150 kilometers away from Jinzhou Port.