Do Not Buy an Oil Free Vacuum Pump- Changing oil is simple
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- Опубліковано 30 вер 2024
- Before buying a Freeze Dryer watch this video. Paying more money for a oil free vacuum pump is a costly mistake. Tips on vacuum pump oil changes
- Наука та технологія
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You just saved me a lot of money. I was going to buy an oil free pump. Thanks for all your wonderful advice
Very informative I bought an oil free pump in August 2020 and HR sent me a scroll pump. It ended up failing 6 weeks out of warranty! I now have a Premier pump and love it, oil changes are easy. At the time of my 5 month back and forth with HR trying to figure out why I was getting a vacuum error, I asked my tech "Which pump gets more trouble calls, oil free, or oil pump?" His answer, oil free. In retrospect, my oil free pump started throwing "unable to achieve vacuum error" probably 9 months after purchase but would always resolve by load being restarted, my husband said it was a slow leak...beware!! Note: Our troubleshooting took longer than needed to and this wasn't due to HR, it was due to us. Listen to Phil, do not buy an oil free pump.
I was just checking out an oil free pump I purchased on Ebay. I was testing it and haven't attempted to run a load in it. I'll return it.
I wish I would have known the scroll pump is vulnerable to acidic vapor. I also believe the HR FD vacuum hose suction allows fine food dust particles to pass into the vacuum pump which is devastating for scroll pumps!
HR failed their customers big with offering this pump! I just found out this morning they released a video to conduct additional maintenance on these pumps that was never mentioned in any documentation I read and certainly was omitted on first delivery! Probably too late for my dying pump! ua-cam.com/video/1osW04DwtbI/v-deo.html
@Phil I've read some posts about the oil pumps need oil drained if to be left idle for long durations. Is that true?
I don't think it's a good idea to leave organics (food) or acidic water in the vacuum pump long or short term. Best to drain and change the oil.
Too late, darn it ! Now I have to go buy one of the other pumps. I haven't used my oil-free yet.
Me too! I haven’t used it yet, but I’ve had it for over a year because I’m nervous about this whole process. What did you do with your brand new oil free pump?
@@shellystanley4902 Ditto. Unfortunately, both the FD and oil free pump are still sitting on my cart. Haven't even plugged them in, yet.
I’m just going to use it. If l have to send it in to get fixed, I’ll just have to buy an oil pump.
My mans is right
I’m thinking to buy one for my husband’s birthday. For two people do you recommend a small or medium? I was aiming for an oil free but after watching your video I’ve changed my mind. Thank you
I'm happy with my Medium. Please don't buy an oil free pump.
Im very concerned about breathing in any vapor because I will place this in my bedroom. Is this a genuine concern? Thank you so much for your informative video!
If you have any concerns you should obtain the SDS (formerly MSDS) on the oil (or product) you are using and review the risks with yourself or with your doctor. The issue is long-term effects. A dryer vent tube and internal booster fan could be placed over the demister and discharged out a window.
Is the clear jug just a regular jug or does it filter or something? I didnt see you mention it in the video
Nevermind I see it on their website. I'm new trying to figure it all out if I want one
Thank-you for sharing.
I love my oil free pump! It’s been running non stop for a year now!
Keep good care of it. Wish you well.
It’s only a matter of time. Be ready.
👍👍👍👍👍
Very informative video. Thank you
The question is what to do with the oil free pump after it starts to fail.
If it's from Scroll Labs there nothing to do. If it's from HR you could take it apart and replace bad bearings now. Individual bearings are available from Grainger and Applied Industrial but at twice the price.
ua-cam.com/video/j0JEr9gaFiQ/v-deo.html
@@Philat4800feet Thank you. It's the HR but it sits horizontal.
Phil, always love your channel. The only thing is you missed information on the oil free pumps. At least the little white one. They will not do vinegar because that’s very acidic and will destroy the diaphragms and check valve in the pump. So if you stay away from Tabasco, hot sauce or something with vinegar to try to freeze dry, you’ll be in better shape without destroying the pump. But normal freeze drying carrots celery soups etc. Once you’re done unhook your hose and when you go into the five minute run time after the freeze dry cycle. Spray five pumps of 70% alcohol in the suction side of the pump. And it will preserve and make your pump run many years longer. Learn this out the hard way. But Dave from scroll labs was very helpful. Repaired my pump for free .All I paid for with shipping. It was still under warranty. But I’ve been freeze-drying with it ever since ,as long as I spray it with alcohol after every batch. Did one year before I blew the pump up. Been running the pump for two years now since escrow lab sent it back to me. I should go check my hours but regardless. And I’m still getting my vacuum down to 300 to 325 Militar
I'd say you're the exception to the rule. HR has lost millions to Scroll Labs on refused claims. I'm glad it works for you.
Who manufactures the green pump that you used? Where did you get it from? Very good video thank you.
Harvest Right sells the pump, the manufacture is an unknown company in China.
Can u use a different vacuum pump u can buy at any brick and motor store like lowels or home depo
Yes, but find one with similar CFM and mtorr rating. Navac NP12DM is similar.
Do you ever heat the used oil on a stovetop to drive out moisture?
I have tried this but the heat reduces the life of the oil once the heat exceeds 250 degrees. You can do the same by placing the oil in your freeze drier. Moisture will boil at room temperature at 70 degrees at 20,000 mtorr
Good advice. Don’t run a freeze dry cycle on the oil. Simply put it in the chamber and run the vacuum pump to take down the pressure; which will suck out the moisture.
The irony is that, when you suck out the moisture from the “old” oil, you’ll be contacting the new oil 😂
I have been playing around with vacuum filters filled with desiccant. Perhaps this will help.
Phil, does the pump oil become acidic after freeze drying?
Not so much, but can if the same oil remains in the pump long term. Any acidity is flushed out with the oil and caught in the paper filtering element.
Thanks, I would think that any acidity would be in the water that is entrained in the oil, and so filtering oil after each batch would remove any acidic water. I filter my pump oil continuously throughout each batch and have never found any water in my oil. Using Premier pump and oil filter with a water separator. Oil is pulled through filter with a 12v diesel fuel pump and returned to the vacuum pump.
I was wondering if the Nu-Calgon Phase III refrigerant acid oil test would detect acid in vacuum pump oils. It appears to work generically on mineral oils.
I send my oil to a company called Gearhead for testing. They do not test for PH. I have a stand alone PH tester for the water. A sample of their testing can be found on this video:
ua-cam.com/video/62dIzwn07FU/v-deo.html
It would be interesting to perform your acid oil test. Another oil test can be found here:
ua-cam.com/video/qPJ1sdce0NM/v-deo.html
That's a great idea. The problem with oil free pumps is they don't have the oil coating to protect the parts