Sailor Posted February 13, 2018 Share Posted February 13, 2018 Hi I am considering purchasing a double diaphragm pump to pump my mash from the mash tun to the fermenter then from the fermenter to he still then from the still to holding tanks. I will be distilling on the grain. My equipment is all just 100 gallons. I am hoping to get your opinion on this set of specs.: 1.5" inlet/outlet aluminum double diaphragm self priming pump , ball is EPDM, check seat and diaphragm santoprene, max temp 212F and maximum solids 9/16". What do you think. Thank You in advance Link to comment Share on other sites More sharing options...
Patrick F Posted February 22, 2018 Share Posted February 22, 2018 We have a very similar operation, and use a pump with very similar stats to yours. Except our maximum particle size is a little smaller at 1/4", and our diaphragms are Teflon/Santoprene, and we move 180gal at a time. It works great for us. I'm curious if you can actually use a solely Santopene diaphragm if you are moving hot stillage, but I'd leave that up to the technical people at your pump dealer. Link to comment Share on other sites More sharing options...
Sailor Posted February 22, 2018 Author Share Posted February 22, 2018 Thank You Patrick Link to comment Share on other sites More sharing options...
Sailor Posted February 22, 2018 Author Share Posted February 22, 2018 Patrick F What size air compressor are you using? Link to comment Share on other sites More sharing options...
Patrick F Posted February 22, 2018 Share Posted February 22, 2018 Ingersoll Rand Type 30. Works great. Link to comment Share on other sites More sharing options...
Southernhighlander Posted February 22, 2018 Share Posted February 22, 2018 One thing that is very important is grounding your double diaphragm pump if you are pumping ethanol. If the pump is not grounded, then static electricity created by the flow may cause a spark and massive fire and or explosion. This can occur even with pumps with non metallic parts. We have grounding kits for lots of different double diaphragm pumps. 417-778-6100 paul@distillery-equipment.com We do not have them on our web sites yet so you will need to call or email. Link to comment Share on other sites More sharing options...
indyspirits Posted February 22, 2018 Share Posted February 22, 2018 Or you can make your own grounding "kit" from about $3 worth of parts from Lowes or any other big box store. Link to comment Share on other sites More sharing options...
Southernhighlander Posted February 23, 2018 Share Posted February 23, 2018 3 hours ago, indyspirits said: Or you can make your own grounding "kit" from about $3 worth of parts from Lowes or any other big box store. Yes you can make your own grounds. Just make sure that you ground both the inlet and outlet of the pump. Some pumps like the floject G70 come with grounding terminals built in, while most other double diaphram pumps don't. Link to comment Share on other sites More sharing options...
MichaelAtTCW Posted February 23, 2018 Share Posted February 23, 2018 The reciprocating action of the pump can also create static electricity. The air motor should be composed of parts that are capable of discharging to ground. Pumps in our SimpleSpirits line adhere to this. Link to comment Share on other sites More sharing options...
HottyToddy77 Posted February 25, 2018 Share Posted February 25, 2018 Many people like the FLIP pumps for mash. Air is not as efficient as direct drive electrical. A stainless centrifugal pump also works well. Make sure your elect motor is XP rated. Link to comment Share on other sites More sharing options...
Southernhighlander Posted February 25, 2018 Share Posted February 25, 2018 Just an addendum to what hottytoddy said. Centrifugal pumps work well for wash with no solids but they do not work well for grain in mashes. For grain in mashes, patato mashes, black eyed pea mashes and grappa mashes, 3 types of pumps are best Rotary Lobe, Double Diaphragm and Flexible Impeller Pumps. Link to comment Share on other sites More sharing options...
Killbuck Creek Posted February 26, 2018 Share Posted February 26, 2018 https://www.ebay.com/itm/NEW-ARO-3-8-ACETAL-DIAPHRAGM-PUMP-TEFLON-DIAPHRAGMS-STAINLESS-BALLS-SEATS/312070630678?hash=item48a8dbed16:g:yVgAAOSwH2VaTFfQ Good deal on a groundable pump. Link to comment Share on other sites More sharing options...
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