Where is the high vacuum valve affordable

When the high vacuum flapper 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 valve stem The apex of the valve is used as a sign, that is, the position where it cannot be opened, as its fully open position. In order to take into account the temperature change, the lock phenomenon occurs. It is usually opened to the apex position, and then back 1/2-1 circle, as the fully open valve The position, therefore, the fully open position of the valve is determined by the position of the gate (that is, the stroke).

The rotation of the valve vacuum valve ball core intercepts the fluid or flows through the ball center. The pressure difference between the upstream and downstream causes the ball core to abut against the downstream valve seat (floating ball valve structure). In this case, the torque of the valve is operated. It is determined by the friction between the ball core and the valve seat, the valve stem and the packing. The flow of the vacuum valve flushing and the system should not be less than 3 m/s. It should be determined by the visual consistency of the water color at the outlet, The transparency is limited by the transparency of the inlet, and the vacuum valve closing part is sealed with a rubber sealing ring or a metal sealing ring.

Beipiao Vacuum Equipment Co., Ltd. specializes in the research and development, design and production of vacuum valves, vacuum chambers, molecular pumps and molecular pump units with a highly skilled team, and continues to develop new products. Products are widely used in aerospace, technology, coating, solar energy, vacuum furnace industry, energy, metallurgy, chemical industry and many other industries.

Vacuum valve Vacuum valve, determine the method of operating the valve: manual, electric, electromagnetic, pneumatic or hydraulic, electric linkage or electro-hydraulic linkage, etc., clarify the purpose of the vacuum valve in equipment or installations, and determine the working conditions of the valve: applicable medium Working pressure, working temperature, etc., according to the pipeline conveying medium, working pressure, working temperature to determine the material of the selected valve shell and internal parts: gray cast iron, malleable cast iron, ductile cast iron, carbon steel, alloy steel, stainless and acid resistant Steel, copper alloy, etc.

The main contents of the daily maintenance of vacuum valve vacuum valve should have several items (1) the inner wall of the valve body, check its pressure resistance and corrosion resistance, (2) the valve seat, due to the infiltration of the medium, the threaded inner surface for fixing the valve seat is vulnerable to corrosion To make the valve seat loose, pay attention when checking. For vacuum valves, check whether the sealing surface of the valve seat is damaged in high pressure situations. Check carefully whether all parts of the valve core are corroded and worn, especially under high pressure conditions. The valve core wears more serious, and the vacuum valve should be paid attention to.

The main service groups of Beipiao Vacuum Equipment Co., Ltd.: colleges and universities; research institutes; customers with high vacuum and ultra-high vacuum requirements. The company takes scientific development, forge ahead, the pursuit of excellence, and casting fine products as the development concept. "Customer first, service first" is the business policy.

Where is the high vacuum valve affordable

The valve is equipped with a pre-vacuum pipeline valve (called low vacuum valve) on the pre-vacuum pipeline. The high-vacuum valve on the main pump usually cannot be in a vacuum state under the valve cover, while the valve cover is opened under atmospheric pressure. This requires electrical Interlock to ensure safety. Foreline valve and pre-vacuum pipeline valve should consider that the valve itself can be opened under atmospheric pressure. The vacuum system with steam flow pump as the main pump, the main valve should cover the main pump, and the foreline valve should also To cover the main pump, the valve cover of the pre-vacuum pipeline to the vacuum chamber.

Before using the above method of screwing out the broken bolts of high vacuum valves, some conventional measures should be taken, such as soaking with kerosene and cleaning the surface oil stains and rust (this is especially important for the screwing method of spot welding, otherwise the welding is not strong). At the same time, the bolts of the vacuum valve can also be heated, and the bolts can be unscrewed under thermoplastic conditions. The broken bolts can also be unscrewed by chemical corrosion methods to properly clean the rusty and corroded bolts and screw holes. Speed up the unscrewing of the broken bolts (after unscrewing the bolts, flush the screw holes with water to prevent the remaining chemicals from corroding the valve parts).

The main products of Beipiao Vacuum Equipment Co., Ltd. vacuum valves include: ultra-high vacuum flapper valve, high vacuum butterfly valve, high vacuum baffle valve, ultra-high vacuum all-metal angle valve, ultra-high vacuum all-metal fine-tuning valve, etc. The valve diameter ranges from 10mm to 1200mm, the applicable temperature range is -80℃~~+400℃, and the applicable pressure range is 105~~10-8pa.

The main products of the vacuum chamber are: arc structure, round structure, square structure, various vacuum pipes can be processed and manufactured according to the drawings, and the cavity size ranges from 0.1 to 16m.