Selection criteria of ball valve: 1. For the main line of oil and natural gas transmission, pipelines to be cleaned and buried underground, ball valves of full-size and all-welded structure shall be selected; For ball valves embedded in the ground, select full-size welded or flanged ball valves; ...

1.  The application of 2xz rotary vane vacuum pump should be in accordance with the rules, and it is not suitable for removing the gas with high oxygen content and destructive effect on metal and oil. 2. The limit vacuum of the pump is that when the container is not connected and the pump reache...

Although the soil remediation event has gradually subsided, people’s attention to the remediation and utilization technology of toxic land has not decreased. What we want to introduce today is the technology of soil remediation and reuse. 1、 Microbial remediation technology: Equipment: mix...

The roots blower is a kind of equipment that can transfer the oxygen in the air to the aquaculture water quickly by driving the working parts by the power source such as electric motor or diesel engine. It can make comprehensive use of physical, chemical and biological functions. It can not only ...

Various work of vacuum metallurgy must meet certain vacuum degree, and different operations have different requirements for vacuum degree. At present, a variety of vacuum pumps have been produced, which are composed of different pumping principles, have different characteristics, achieve differen...

With the development of urban sewage treatment technology, China’s water environment has been greatly improved, at the same time, sewage treatment process is also facing some new problems. According to statistics, nearly 1 / 2 of the sewage treatment plants in our country do not meet the re...

Rotary vane vacuum pump presents a trend of design improvement 1, material selection: to improve the rotary vane vacuum pump speed, reduce wear, reduce temperature, to ensure the normal performance of the pump, one of the keys is how to properly select the stator and rotary vane of the main frict...

Are roots blowers used in chemical industry the same? Chemical industry is just a general term, or divided into many specific uses. Therefore, the use of Roots blower is not the same. According to different chemical plants and different uses, the use model of Roots blower is also different. Use o...

Product details: The 6p motor is used with low speed of 965r / min More stable operation, low noise and longer service life Large flow design, exhaust capacity up to 1500 L / min Motor power: 2.2kw Displacement: 700L / min Limit vacuum degree: 90kpa Performance curve Installation dimensions Oi...

As the matching equipment of mask production, the melt blown roots blower plays an important role in providing the air injection of melt blown cloth. Compared with air compressor, roots blower has large air volume and stable pressure. Compared with flotation machine and multi-stage centrifugal ma...