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Oops I should have searched on that one... please disregard http://biodiesel.infopop.cc/ev...=128107015#128107015 | |||
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Hey Guys, Ive got a couple of local New Zealand quotes for the Wilden Original P1 Plastic diaphragm pump: Wilden ½” P1/PPPPP (Polypropylene)/TNU (PTFE W Neoprene backup)/TF (PTFE)/KTV (PVDF and PTFE Encapsulated Viton) I think these plastic/rubber compounds are the best choice for making bio? this comes to 858.83 USD The versamatic is a fraction cheaper: http://vm.salesmrc.com/pdfs/e5_brochure.pdf in regards to non sparking pumps what are you guys using these days? is there a cheaper alternative or pump technology?? im really keen to see how cheap (but safely) I can build this processor in the hope others can give it a go. theres a $100NZD Wilden with BUNA N (nitrile) internals for sale but I gather this isnt safe.. cheers Stephen | |||
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The best pump for making biodiesel in my experience is an open impeller design coupled to a TEFC motor. It laughs at fryer bits and glycerin blobs and produces top quality esters for many hours with no maintenance issues. Safe and effective. I would never consider a diaphragm pump for bio production, not the right tool for the job IMO. Cheers, Jon ___________________________ Simple schematic for a pump and heater control with a high limit Sensor for the biodiesel/glycerin layer | |||
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