Principles and parameters of high vacuum valves

High vacuum flapper valve vacuum diaphragm valve, due to its simple structure, small size, light weight and good sealing performance, it is suitable for pre-stage and pre-pumping pipelines and non-corrosive gases with a temperature of -25℃～80℃. Glass vacuum piston, ( Also known as Cork) are mostly used for vacuum measurement calibration systems and glass vacuum systems. For the same vacuum valve, it should be selected after comparing the structure, performance, parameters, scope of application, leakage rate, sealing material, use method and other comprehensive factors. Valve model.

The high vacuum baffle valve determines the geometric parameters of the selected valve: structural length, flange connection form and size, valve height dimension after opening and closing, connecting bolt hole size and number, overall valve outline size, etc., determine and The nominal diameter and connection method of the valve connected to the pipeline: flange, thread, welding, etc., determine the valve parameters: for automatic valves, first determine the allowable flow resistance, discharge capacity, back pressure, etc. according to different needs, and then determine the nominal flow of the pipeline Diameter and the diameter of the valve seat hole.

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.

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

For vacuum valves operating at high temperatures, when the temperature rises above 200°C, the bolts will be stretched by heat, which will easily make the valve not tightly sealed. When necessary, the bolts should be "hot tightened". Proceed to avoid the valve stem from topping dead and difficult to reopen. When the low temperature is below 0℃, the vacuum valve should be protected against freezing first, and the valve bottom wire plug should be opened in time to drain the condensed water inside. And continuous operation valves should be kept warm.

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.

Principles and parameters of high vacuum valves

After the valve vacuum valve is assembled, the welding seam cannot be exposed to the outside. my country's vacuum equipment industry has made great development and considerable improvement since its opening for more than 20 years. This is not only reflected in the substantial increase in output value and output, but also in types, The specifications have achieved considerable achievements in terms of comprehensive technology. China's vacuum equipment industry has made great development and substantial improvement since its opening for more than 20 years. This is not only reflected in the substantial increase in output value and output, but also in In terms of types, specifications, and comprehensive technical levels, considerable achievements have been made.

High vacuum baffle valve tightness: as a stop valve for use in a vacuum environment, the tightness of a vacuum ball valve is a condition. Only by accurately achieving a reasonable seal can the air flow be managed to achieve an effective purpose, and the service standard, On the basis of professionalism, it is possible to improve the rational standard and the basic principles and characteristics of the service. Only when the basic conditions of sealing are truly met, can it be used in actual production and have a good function. It is also an actual production application. Important quality standards.

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.