Company news

We have passed the ISO9001:2015 international quality system certification and are a member of the China Vacuum Equipment Industry Association, a group member of the China Vacuum Society, a quality management unit in Ningbo City, and a three-level enterprise (machinery) for safety production standardization.


Ningbo Instrument Valve Factory Conducts Outdoor Expansion Training for Employees

On the morning of May 22, 2022, facing the booming sunrise and accompanied by laughter, the one-day outdoor expansion activity of Ningbo Instrument Valve Factory was kicked off at Jiuchengyan Outdoor Expansion Training Base. All participants were divided into three groups, and a team leader and a deputy team leader were recommended and selected from their respective teams. After everyone gathered their ideas, they developed a highly creative team name and resounding slogan: Flame Team, Star Dream Team, and Surpass Team. This slogan is not just a slogan, but will also lead everyone to constantly strive and strive for it in the upcoming expansion training and competition.


Current Status and Development Prospects of Vacuum Valve Standards

The countries with advanced vacuum valve technology in the world mainly include Russia, the United States, France, the United Kingdom, Germany, Japan, etc. From the early 20th century to the present, the varieties and specifications of vacuum valves in these countries have developed rapidly. Major vacuum equipment manufacturers in the world, such as Balzais, Raybold Hylas, Western European Nuclear Center and German Institute of Electronic synchrotron, are all professional manufacturers of vacuum valves and can develop various vacuum valves according to international standards.


The importance of vacuum valves in vacuum systems

In a vacuum system, the vacuum system components used to change the direction of airflow, adjust the size of airflow, cut off or connect to pipelines are called vacuum valves.


survival through quality, development through quality

The company always adheres to the path of "survival through quality, development through quality", using advanced design and manufacturing testing equipment as a means to achieve high standards and reliability throughout the entire process of product design and manufacturing, so that every product can become a high-quality product. All products adopt advanced design methods such as CAD design software. The products have undergone more than ten processes such as precision casting, hot forging, welding, heat treatment, precision machining, and assembly. Various main production equipment such as fully automatic CNC machine tools, sophisticated welding equipment, and material chemical composition analyzers have fully realized CAD digital engineering, becoming a leading enterprise in the industry.


The difference between manual/pneumatic/electric ultra-high vacuum plug-in valve

It is driven by a handwheel with a screw, and the connecting rod mechanism is pushed (pulled) by a transmission rod to drive the valve plate to move axially, achieving the opening or closing of the valve, thereby achieving the purpose of connecting or cutting off the airflow in the ultra-high vacuum system. Reasonable in structural design, beautiful in appearance, and with advantages such as smooth operation, small volume, large flow channel, reliable use, good sealing performance, and long service life, it can be widely used in ultra-high vacuum equipment


Structure and Working Principle of Vacuum Flapper Valve

The working principle of a vacuum baffle valve is that the valve plate seals by moving up and down through the valve stem. There are three types of transmission components that drive the valve stem to move: manual, electric, and pneumatic. The manual transmission components are mainly threaded in structure, and can also use a flat cam structure. Figure 1 and Figure 2 are schematic diagrams of the structure of right angle and straight through vacuum flapper valves, respectively. The manual dual purpose transmission component consists of an electric motor, worm gear, and worm, and is equipped with a travel switch.


Structure and working principle of vacuum ball valve

Vacuum ball valve is a type of vacuum valve developed in the 1990s. Its working principle is similar to a vacuum butterfly valve, which opens and closes the valve by rotating a ball fixed on the rotating shaft by 90 °. Vacuum ball valves have a faster opening and closing speed than vacuum butterfly valves, while their volume and leakage rate are larger than those of vacuum butterfly valves.


Take you to understand the relevant technical parameters of vacuum butterfly valves

The working principle of a vacuum butterfly valve is to open and close the valve by rotating the butterfly plate fixed on the rotating shaft by 90 °. Compared with other vacuum valves of the same caliber, vacuum butterfly valves have the advantages of simple structure, large conductivity, short valve body structure length, and fast opening and closing speed. There are three types of vacuum butterfly valves produced in China: manual, pneumatic, and electromagnetic. Manual vacuum butterfly valves are suitable for small diameter (nominal size DN32-300) vacuum extraction systems, connection of extraction pipelines, or cut-off of airflow. Pneumatic and electric vacuum butterfly valves can have a maximum nominal size of DN5000.


Vacuum Knowledge | How to Protect Molecular Pumps Well?

1. The molecular pump cannot exceed the usage environment and scope specified by the manufacturer.


Vacuum Knowledge | The Relationship between Vacuum Degree and Absolute Pressure

Vacuum degree, as the name suggests, refers to the degree of vacuum. In a closed space, the fewer gas molecules there are, the higher the vacuum degree. Absolute pressure refers to the pressure exerted by gas molecules on the container wall in a closed space, and there is a close relationship between the two.

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