LycanMister
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Haskel pneumatic seems to be king shit now but requires a very expensive screw compressor, and that requires 3 phase power to run.
Cmep-ol is one im seeing a lot more of. Oil free, explosion proof, and solid construction. Haven't really read up much on it personally.
cm-ep is one from ecogreen that uses hemp seed oil for lube and seems to do a good job. Hearing many reports of people getting hemp seed oil in their hash though.
Cps tr-21, they might have a newer stainless version? This pump combined with cold trap (mt-69) seem to be working for many users too no personal experience with it though.
Thanks for the responses, I'm very psyched for this system and get more antsy every day! Unfortunately the recovery pump is the biggest bank breaker and last piece I need for production! if I cant find a good deal locally on a quality long-life pump, there will be no choice but to order a Robinair RG6000 or equivalent. The CPS tr-21 was my first choice but I cant find any hard evidence to support its superiority, and the convenience and price of the Robinair is very tempting.
Cheers
My understanding of recovery machines leads me to believe that as long as you pressure test your system before each use to ensure that your pumps seals are intact and that there are no leaks, a sparkless model would be unnecessary, but rather a safety precaution. I haven't found any other technical differences between the TR models other than power and regional requirements. I have found no reference to the stainless steel or motor upgrades you mentioned. However, I'm just a novice. So please GW, fill me in as I'm planning on buying a new machine on Wednesday. I am currently eyeing a TR19 ($464.55) or TR21 ($567) or TRS19 ($695) and am leaning towards the TR19 because of my very modest system and budget sizes and the fact that the rebuild kit is the same one for all of these. Which is the best deal GW?The Appions work for the purpose, but are not rated for flammable refrigerants, and Appion has made it clear that they do not intend build one to fill that need.
CPS TR-21 works in conjunction with an external heat exchanger, and demonstrated that they did want our business by offering the TRS-21, which has a stainless pump section, a Totally Enclosed Fan Cooled (TEFC) motor, with potted electricals, to eliminate sparks from the control switch,
We've supplied only Haskel Model 59025-3 pneumatic pumps on WolfWurx turnkey systems, which do require 40 scfm of air to drive, but it can be accomplished using either single or three phase. Haskel has also risen to the occasion with their stainless EXT-420 pump, which can be plumbed to operate either single or double stage.
We are still testing the CM EP using hemp seed oil as the lubricant, but it does require after filters to remove residual oil in the discharge. It is about three times as fast as the Appion and significantly quieter.
We haven't gotten our hands on their new Oil Less yet, but have been promised one for testing and look forward to doing so.
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