What gast vacuum pump would you use

[Mike's Sugar Shack]

I will have probally 600 taps what size gast vacuum pump would you use?

[maple flats]

I would use one that pulls at least 12 cfm. 50 taps/cfm is a better guide.

[heus]

Gast 3040 oilless has worked great for me.

[brookledge]

Make sure you look at the specs of the model you are considering. Gast rates their pumps at free flow.meaning 0" HG. Gast has a good website and you should be able to check the specs including the rim needed to achieve the speckled level
Keith

[unc23win]

I have a 2065 oil cooled and I like it a lot it pulls 23.5-24 on 800 taps and maxes out at 25" so its a pretty good pump. Uses very little oil. The oil less Gast are good pumps but the vacuum drops off more rapidly as required CFMs increase I have a 3080 oil less that I am not using needs a motor. Gast has a good web site with all the information and a very good Tech Support. I think they are underrated pumps. I am pretty happy having a brand new pump 2065 and motor that pulls 23-24 inches on 800 taps for $600 and it uses less than half a cup of oil in 16 hours and is not warm to the touch.

[heus]

My 3040 was $80 and has been pulling 24-26" all season.

[regor0]

I have a gast 2567, It's been running 25-26 all day. I have seen it at 27.5. But I only have around 300 taps on it.

[Jim Brown]

I have 2565 v2v and they pulled 22 inches all season long


Jim

[sapman]

I've been running a 2567 oilless. Earlier in season it was pulling 27, usually about 25 now, on only 140~ taps. Does run kinda hot, but so far so good.

[Fiddlehead]

I just picked up a Gast 2567. Looking forward to putting it in production. Anyone have diagrams or pictures of their set-up with this type of Gast pump? I would love to see how you have configured the relief valve and moisture trap. Planning to use a Johnson controls A419 thermostat to turn it on and off. Any thoughts?

[unc23win]

I wouldn't use a relief valve. At least I don't on my 2065. If you were to use one I would just use a simple spring relief valve easy to install and adjust. For a moisture trap if your pump has smaller inlets 3/4" or 1" you can just use a simple ball trap. The maple guys sell one with 1" inlets that I used with no problems. You could also make one if you wanted.

[mountain man maple]

Run a 1550 on 525 taps. System was brand new last year I was able to get 24 " with pump consistently. The pumps do run hot to touch. I use a Johnson control to start/stop pump on a motor starter.

[Fiddlehead]

Thanks for the help. I picked up a Gast 2567 on Ebay and ordered a Johnson A419 temp control. Hoping to have things set up this month and get at least 500 taps on it before sugar season, but still have to select a releaser. Thinking a Lapierre or Bernard 8" double vertical. It will leave room to expand. Any suggestions?

[regor0]

I have a 2567 with a Bernard double mechanical continuous vacuum, works great. The only thing I would do different is get the smaller manifold to help with the grade.

[Fiddlehead]

Thanks. I think I will take your advice on the Bernard double vertical. I spoke to the folks at Lapierre and that was their suggestion as well. Any pics of your set-up? What would be the benefit of the smaller manifold?

[regor0]

If your land is flat without much elevation change dropping into your tank. It gives you a couple more inches to gain that needed slope. You can get a 6" manifold or a 2" manifold. The 2" just allows you to get a couple more inches of drop on your mainline.

[Fiddlehead]

RegorO,
Any pictures you can post of your set up with the Gast 2567? Got mine rigged up this weekend with a new 1.5 motor and Jonson A419 temp control. I am new to vacuum and though a look at yours might help with set up.

[WESTMAPLES]

i run 2 gast 1023 oiless vac pumps with bender releasers and continuous vac manifolds, they do run hot but haven`t had any issue with them pulling 25 in all season long but im on a smaller number of taps, but i do have 40 gal moisture trap/ vac accumulator to make up for the smaller cfm of the pump , basically they are air compressor tanks they came with the vac pumps when i bought them, so i used them too. everything is very productive to my scale on a mild budget