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Try Colman Moducel (Eaton Williams) or Waterloo Air or Schako to name just a few. It depends on your application but they all seem to have reasonable data online. I use colmans a fair bit. Links below: http://www.eaton-williams.com/colmanmoducel/colman_products/...

Thanks dgallagher, that was useful. I was also put onto another manufacturer's site who make a similar product. It differed in that a single electrostatic field was used, with a saw tooth shape membrane between two electrodes. Am I right in thinking that the dividing membrane is to prevent a...

Thanks VE1BLL, I was thinking about wrapping a +ve electrode around a plastic (capped off) pipe. The interior of the pipe could be grounded. However, wouldn't this just hold -ve charge against the inside surface of the pipe? Rather than a distributed charge throughout the pipe?

Thanks, that's very helpful. I'm most interested in the induction charging process. It seems that the electric field between the HV electrode and the grounded electrode induces a charge in the particle impurities? These are then attracted to and held at either electrode right? If I wanted to...

Can anyone give me a brief explanation of this process? Thanks.

Has anyone got experience of electrostatic oil cleaning? How does it work? Thanks

Thanks JStephen & moltenmetal. Splitting hairs first: I always understood "hyperbaric" to mean greater than atmospheric pressure. Greek origins I think. OK, I get the message. To do this safely and correctly is going to take a few quid. So do you know of a good company that could suggest a...

Thanks Prex, but you have the wrong idea. No-one is going inside the chamber. Anyone else got any good constructive suggestions? Thanks

Hello All, I'm looking for a really low cost auger screw and housing about a foot in length to act as a feed screw for woodchips. So far i've thought of using: 1. 1" auger drill - too high a torque needed to drive it. 2. soil auger - too expensive. Has anyone else got any brighter ideas...

Dear all, A friend asked me how he could cheaply obtain a robust chamber that would be capable of being pressurised to 2bar, be sized at about a cubic metre (give or take 200L), be able to screw pipework connections into, and with a decent sized lid - about 500mm to 600mm diameter. An off the...