How to choose a suitable centrifugal vacuum pump? ——Shandong Linyi Localization Selection Guide

Selection Core Four Step Method

Clarify the vacuum requirements for the process

Vacuum degree: The required working pressure is determined according to the process (such as 100-200 Pa for clothing ironing and 10 ⁻² -10 ⁰ Pa for semiconductor front-end pumping).

For initial and target pressures, with a 10% -15% margin reserved to deal with leaks and fluctuations.

Key principle: The maximum vacuum degree of the pump should be half to one order of magnitude lower than the process requirements to ensure stable operation.

Identify the characteristics of gas media

Corrosive gases (such as chlorine gas, acidic vapor): Prioritize using oil-free centrifugal pumps with stainless steel 316L or PTFE coated impellers, and avoid using oil sealed pumps.

Containing particles or condensed vapor: Install a condenser or dust filter at the inlet to prevent blockage or corrosion.

Flammable and explosive environment: Select explosion-proof motor (Exd II BT4 level) and confirm that the pump body is designed without sparks.

Showcase the industrial structure of the Water King 2BE series liquid ring pump;

Demonstration of the entire installation and commissioning process for centrifugal vacuum pumps;

Take real photos of the operation of the vacuum dehumidification system for the clothing ironing machine.

Avoiding pitfalls reminder: Beware of market confusion of products

A large number of "centrifugal vacuum pumps" on the market are actually vortex fans, oxygenation pumps, or industrial blowers (such as models from Shangqi Renmin Electromechanical and Kechuang Renmin Water Pump), which work on positive pressure air supply and do not have vacuum pumping capabilities.

Key points for identification:

True centrifugal vacuum pump: suction port in the center, discharge port in the side, nominal "ultimate vacuum degree" (unit: Pa or hPa);

Confused products: Only labeled with "air volume", "air pressure", and "power", without vacuum degree parameters, mostly used for oxygenation, ventilation, and heat dissipation in fish ponds.

Please identify industrial grade equipment with clear vacuum parameters (such as ≤ 186 Pa, 18 kPa) to avoid mistakenly purchasing inefficient products.

Shandong Ruidian Environmental Protection Technology Co., Ltd. is located in the high-end equipment manufacturing base of Luozhuang District, Linyi City. It is a modern enterprise that focuses on the research and development, design, production, and manufacturing of multi-stage centrifugal blowers, centrifugal vacuum pumps, Roots blowers, pneumatic conveying systems, and soil remediation integrated special equipment