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FryeFan
Comentado en los Estados Unidos el 28 de febrero de 2025
Great quiet vacuum pump. No it will not move 15L of liquid through a fine-frit filter in a minute, not even close (I believe the spec refers to the volume of air moved when it's not connected to anything (ie not fighting a vacuum), but it does build a vacuum very quickly (at least in a 1L flask), doesn't leak pressure when turned off, and is very quiet and easy to move around. Very practical shape and design and comes with a high-quality hose. The pressure gauge is a great feature also and it's nice, for safety, that there's an external power supply that sends a low voltage to the pump itself. Zero complaints. If you're thinking about buying one of those $30 pumps and plan on using it more than a few times, or want something that works really well and that you can verify is actually working (thanks to the gauge), buy this one instead.
Cranky Old Woman
Comentado en los Estados Unidos el 14 de mayo de 2024
This review is for the LACHOI Lab Diaphragm Vacuum Pump 15L/min Flow Rate Oil Free Vacuum Positive and Negative Pressure for Filtration Distillation Laboratory with Rubber Tube (Filtering Flask not Include).I use the LACHOI for vacuum filtration, as shown in the attached photograph. I would also like to use the LACHOI for removing air from vacuum food containers but I have not figured out how to make the hose connection.I am not using the LACHOI supplied rubber tubing, because I doubt that it is food safe. I purchased other tubing that is specified to be food safe silicone.Five stars.
S A Perret-Gentil
Comentado en los Estados Unidos el 27 de noviembre de 2024
The pump works great, but I needed more capacity and had to return it.Very quiet and smooth.
David
Comentado en los Estados Unidos el 18 de septiembre de 2024
I recently purchased this oil-free vacuum pump, and I couldn't be more satisfied with its performance. The fact that it operates without any grease is a huge plus, especially in environments where cleanliness is crucial. I love that I don't have to worry about oil contamination, making it perfect for delicate processes.The pump operates incredibly smoothly, and I’ve noticed no impact from temperature or humidity changes, which is a huge win. The advanced control system really shines through, providing consistent and stable vacuum pressure. The pressure gauge is clear and easy to read, and I appreciate the dual-use design for positive and negative pressure. It’s versatile and works exactly as advertised.
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