Our vacuum pumps offer reliability, durability, and performance for diverse applications.
Better corrosion resistance with longer service life.
Main Data
Available for 4 operators to use it simultaneously.
Main Data
Fluorine rubber material gas pipeline for superior corrosion resistance.
Main Data
GWSI is the leading water circulating vacuum pump manufacturer in China. We have been in the manufacturing industry for more than 34 years. GWSI has established a unique brand value with more than 200+ workers and engineers in lab equipment industry.
You can import glass reactors, rotary evaporators and more scientific instruments from GWSI. GWSI can provide one-stop solution for petroleum, chemical and more process need.
As leading water circulating vacuum pump manufacturer, GWSI focus on each manufacturing step detail to ensure you receive a reliable water circulating vacuum pump.
There has laser cutting machine, auto production line and more equipment in GWSI factory to guarantee qualified water aspirator vacuum pump.
GWSI quality control is executed during the whole water circulating vacuum pump manufacturing process. GWSI will not let unqualified water circulating vacuum pump come to customer’s hand.
GWSI has dependent QC team to check and test water circulating vacuum pump from raw materials to final package step.
Professional vacuum pump workshop
precisely shape process
High technology drilling machine
Check quality carefully
Anti-collison package for delivery
Work with famous forwarder
You can learn the complete rotary evaporators parts list from this article.
You will get to know how to operate the rotary evaporators in quick time.
You will find practical ways to solve the common technical problems.
You can check list of Top 50 Rotary Evaporator Manufacturers from this post.
You can check how to install the rotary evaporators and do it by yourself.
You will know the ways to maintain your rotary evaporators in this guide.
Water circulating vacuum pump also known as water ring vacuum pump, it is a kind of vacuum pump.
The water circulating vacuum pump improve the space and appearance with transparent anti-corrosion water tank, anti-corrosion shell and stainless steel shellaccording to the characteristics of the small laboratory area.
Water circulating vacuum pump feature in small size, light weight, beautiful appearance, etc.
The water circulating vacuum pump can also be used as a compressor, called a water ring compressor, it is a low pressure compressor.
The working pressure of the water circulating vacuum pump should meet the ultimate vacuum and working pressure requirements of the vacuum equipment.
Usually, the vacuum degree of the water circulating pump is selected to be half to an order of magnitude higher than the vacuum degree of the vacuum equipment.
You should confirm the composition of the pumped gas, whether it contains condensable vapor, whether there is particle dust, and whether it is corrosive.
Correctly select the working point of the vacuum pump.
Each pump has a certain working pressure range, such as: 10-3~10-7mmHg, in such a wide pressure range, the pumping speed of the pump changes with the pressure, and its stable working pressure range is 5 × 10 -4~5×10-6mmHg.
Therefore, the working point of the pump should be selected within this range, and it cannot be allowed to work for a long time under 10-8mmHg.
We have got an exceptionally passionate team here at Greatwall ready to help you find possible solutions for optimum performance.
Have any questions about our products or services? Our well-trained personnel is at your disposal.
GWSI is a manufacturer of rotary evaporators, glass reactors, and temperature control units for laboratory and industrial applications.
Sign up to get regular product updates and promotion offer.
English English 
Spanish
German
French
Dutch
Italian
