Biopowered - vegetable oil and biodiesel forum

General => Chatter => Topic started by: thatmusicman on January 22, 2021, 02:35:09 PM

Title: Rotary Barrel pump
Post by: thatmusicman on January 22, 2021, 02:35:09 PM
Just went to post on VOD, and shock horror the bandwidth has been exceeded again!

Just after a recommendation for a rotary barrel pump. Are any brands better built than others?

Cheers
Title: Re: Rotary Barrel pump
Post by: Keef on January 22, 2021, 04:17:12 PM
I've got a couple of cheap ones and they are so simple that I wouldn't worry about build quality.

One of them has a larger bore pipe and it does seem to pump a bit faster.

Mine seize up if left for any length of time after pumping veg but they're easy to pull apart and clean out.
Title: Re: Rotary Barrel pump
Post by: nigelb on January 22, 2021, 11:19:03 PM
I'm with Keef...they are a piece of piss to take apart and clean. I had one for years....incredibly efficient. Not entirely sure what happened to it. Certainly didn't make the transition to my new home.
Title: Re: Rotary Barrel pump
Post by: BANDIT2 on January 26, 2021, 10:31:12 AM
The veg tends to stick the vanes in the rotor if they are left standing. The one I had used a very thin cellophane type gasket to seal the cover, this ripped the first time I stripped it down so I made a new one from a cereal packet. It then decided it didn't want to work anymore, I realized that a close fit between the rotor and the cover was important to create suction, something I removed by using a thicker gasket. Some thin gasket paper sorted it.
I don't use one anymore but I used to play a hot air gun over it whilst frantically wanking the handle if it became gummed up from storage.