Dear Philip,

If you address the problem of leakage, are you then referring to air leakage in a pneumatic conveying system or just material leaking?

In case of an application in pneumatic conveying, it is a well-known issue that leaking rotary locks create problems such as fluctuating conveying and conveying pressures.

Special design and extensive maintenance can reduce (or eliminate) those problems.

A low-pressure drop pneumatic conveying system reduces the problems also.

A leak-free solution is a screw feeder, but this solution comes with extra power demand.

Have a look at:

http://www.bulk-online.com/Cat/rotar...feeder-333.htm

for some suppliers.

To comment on the rotor feeder that causes your problems, it is necessary to suplly more information.

Have a nice day,

Teus ■