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| Forums > Talk About It! > Cannabis Concentrates > What type of pump is on the VTA wiped film? | ||
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10-27-2017, 10:50 AM
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#1 |
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Newbie
Join Date: Jun 2014
Posts: 45
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What type of pump is on the VTA wiped film?
We are looking for a pump that can remove product from a high vacuum environment for our falling film evaporator. With 15 gph flow rates, and up to 60 in the near future. We wonder if the pumps on the VTA would work, but not sure what type they are.
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10-27-2017, 05:08 PM
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#2 |
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Newbie
Join Date: Aug 2016
Location: Spaceship Earth
Posts: 20
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On the VTA for dosing and dispensing, they use gear pumps with heating jacketed head. The hard part is finding a gear pump that has low flow rates and low holdup and can handle viscosity with trace heating. VTA likes to put their brand on every piece, and they make rotulex fitted pump head for gear pump in house. Micro Precision, Wakusha, are good places to start.
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11-03-2017, 02:35 AM
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#3 |
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IC Mag Supporter
 Join Date: Aug 2015
Location: Washington
Posts: 8
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just get yourself a good diffusion pump and a good rotary pump and you'll be good to go.
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1 members found this post helpful. |
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11-03-2017, 03:38 AM
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#4 |
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Member
Join Date: Jan 2016
Posts: 246
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Can anyone with experience in both Pope and VTA chime in with some comparisons and reviews ? On my radar to pick up one of these systems in the near future is why I inquire.
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11-03-2017, 04:04 PM
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#5 | |
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Newbie
Join Date: Aug 2016
Location: Spaceship Earth
Posts: 20
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Quote:
its like B.B King once told me about guitars, The same applies here...Its kinda like cars. Volkswagon, Toyota and cadillac will all get you to the same place. Question is are you OK arriving to destination wth sweat on your brow? and broke? How much curde do you need to run/day? VTA holds about 30ml in each pump and about 125ml in the feed line, with 2 passes this ammount adds up to around 250-300ml per finished Kg. This hold-up needs to be ran out of system for each pass (light cut&deepcut=~250ml) , thrown to the side and re ran some other time, VTA says when running Kgs this is insignificant ammount, I beg to differ.Its basically a "loss" for each run. Both Pope and VTA do NOT make their own glass. Why is this important? (Glass tolerances and deadspots on evaporator) Granted VTA is better glass quality than Pope. As janky as pope looks with heat tape and such Compared o VTA, when you are counting more $tacks b/c you saved yourself 100K the Pope is not that bad. VTA is a great fabricator and machine shop. They have Rotulex fittings with glass to metal transitions only they make. This becomes an issue when you want to modify the system to fit your needs. The pope is way easier to modify, but will need a dosing pump on first day to really get your $ worth. Beaker nd Wrench make a great dosing pump and preheater system for feeding a Pope Another plus for the POPE is is countercurrent vapor flow option. Most all cocurrent systems condense lights at the unjacketed portion above the feed and wiper basket. This condensate drips onto evaporator surface and causes all kinds of issues. With pulling vapor out the top its easier to control condensation ocuuring above jackt. Also, there are other brands beside Pope and VTA, someof which make their own glass and do full custom... |
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1 members found this post helpful. |
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11-03-2017, 10:44 PM
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#6 | |
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Member
Join Date: Jan 2016
Posts: 246
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Quote:
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11-05-2017, 07:11 PM
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#7 |
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IC Mag Supporter
Join Date: Aug 2015
Location: Washington
Posts: 8
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Or just get a chemtech and build your own. You'll definitely save a lot more money, although granted not everyone has the time or skills to put one of these things together. VTA comes with training and installation, and a high price tag. Helderpad even more so. Pope is meh, but it will get you by depending on how much output you plan on doing. Chemtech is probably the way to go if you can, unless of course you can afford the big shiny caddy.
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11-06-2017, 07:10 PM
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#8 | |
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Member
Join Date: Oct 2009
Location: West Coast
Posts: 683
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Quote:
The Pumps we use are machined in house by VTA. They are absolutely fantastic pumps but you're probably not going to find them outside of a VTA system... Now, we could potentially discuss some sort of custom situation but that will be a longer conversation... hamilton@rootsciences.com |
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2 members found this post helpful. |
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11-06-2017, 08:31 PM
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#9 | |
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Member
Join Date: Mar 2014
Posts: 254
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Quote:
__________________
Think Outside of the Bhox |
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11-06-2017, 08:41 PM
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#10 |
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Member
Join Date: Oct 2009
Location: West Coast
Posts: 683
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I typically run the first pass at around 1600G/hr and the second pass around 1200 g/hr
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2 members found this post helpful. |
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