Hello Stefan,
01. October 2003, 15:56:05, you wrote:
ST> but you need to fully compress the hose.
ST> otherwise the liquid flows back in the gap left open.
ST> would be hard with thick hose to fully compress (and have it expand
ST> afterwards).
ST> or do you think of a pump that uses one way walves and does not fully
ST> compress the hose?
ST> (bellow or membrane type)
ST> i just had another idea.
ST> if dry compressed air is availabe it would be easy to make a venturio pipe
ST> pump.
ST> (the principle of bottom-tank color spraying or water vacuum pump)
ST> is simple, no moving parts, very high pressure, but you need to release the
ST> air blown in again...
ST> (without propelling fumes out).
ST> stefan
And I replied:
For more details on operation principle, max flowrates, max pressures on
peristaltic pumps (the ones that are using rollers combined with silicone
or other tubing) visit thye following site: www.masterflex.com
My small business is the maintenance and repair of various medical
equipment and I can assure you that no liquid is flowingback!
--
Best Regards,
Zoran
mailto:
zasto@...