Where is the good high vacuum flapper valve

If the high vacuum valve is classified according to the working pressure of the actual starting system, there can be rough vacuum system, low vacuum system, high vacuum system, ultra-high vacuum system and extremely high vacuum system. According to the cleanliness of the vacuum system, there will be oil Vacuum systems and oil-free vacuum systems. Due to people’s habits, the above-mentioned different categories are often integrated in practical applications, such as "large dynamic metal high vacuum systems", "oil-free ultra-high vacuum systems", etc. Therefore, the above The classification method is not strictly constant.

High-vacuum flapper valve solenoid vacuum with charging valve and solenoid vacuum differential pressure valve are vacuum valves specially used to prevent oil from returning to mechanical vacuum pumps. They are installed at the inlet of mechanical vacuum pumps and open and close synchronously with the pump. Generally, they cannot be used. In other places, that is to say, it cannot be used for venting in the vacuum system. The advantage of using the Nivel electromagnetic vacuum differential pressure valve is that it consumes very little power and saves energy; the valve body with DN≤50 is made of aluminum alloy and weight Light weight, small size, fast closing speed of the valve plate.

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 factory is over 50 acres, the main factory is located in the Taiji Management Zone of Beipiao City, and the new factory is located in the Light Textile Industrial Park of the Economic Development Zone of Beipiao City, with a total investment of over 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 of vacuum application technology development and equipment manufacturing.

When the vacuum valve opens the valve, when the lift height of the gate is equal to 1:1 times the valve diameter, the fluid passage is complete, but during operation, this position cannot be monitored. In actual use, the apex of the valve stem is used as The mark, that is, the position that cannot be opened, is used as its fully open position. In order to take into account temperature changes, the lock phenomenon occurs. It is usually opened to the apex position and then rewinded by 1/2-1 turn as the fully open valve position. , The fully open position of the valve is determined by the position of the gate (ie stroke).

When the vacuum valve of the high vacuum flapper valve leaks, the leak location and cause should be identified first. Under normal circumstances, there are two types of leakage and external leakage. External leakage is divided into leakage at the packing and leakage at the valve cover and valve body according to its external structure. As well as the leakage of sealing surface or fabric materials, the operator should judge that if he can solve it, he should deal with it in time, and if it can’t be solved, the maintenance worker should deal with it in time. The vacuum valve packing gland should not be pressed too tightly, and the valve stem should be able to rotate sensitively. , Pressing too tightly will increase the friction of the valve stem and increase the operating torque.

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".

Where is the good high vacuum flapper valve

Vacuum valve storage and maintenance methods The purpose of storage and maintenance is to prevent damage to the valve during storage, or reduce the quality. In fact, improper storage is one of the important reasons for valve damage. Vacuum valve valve storage should be organized and small valves On the shelf, the large valves can be neatly arranged on the floor of the warehouse. They should not be stacked in a random manner. Do not let the flange connection surface touch the ground. This is not only for aesthetics, but also to protect the valves from damage due to improper storage and handling. Broken, the valve stem is crooked.

The vacuum part of the valve vacuum valve is mainly composed of the interlayer between the inner valve body and the outer valve body. The more gas in the interlayer, the more intense the convective heat transfer. In order to reduce the influence of convective heat transfer, the interlayer should be vacuumed. The heat transfer of gas belongs to the migration of gas. For the gas heat conduction of the vacuum interlayer, with the strength of the interlayer, the heat conduction mechanism of the vacuum valve gas is different. The sealing structure of the inlet and outlet ends of the vacuum valve and the pressure test joint are commonly used conical surfaces and Spherical contact.

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.