eccentric reducers

Eccentric reducers are always used in horizontal lines. Reg. pump suction, this is what I have been taught: 1) In horizontal pump suction lines, use eccentric reducers with flat top unless the liquid is viscous. This is to prevent air getting trapped.
2) With viscous liquids, use eccntric reducers with bottom flat to prevent pocketing as pocketing ia apparently more critical than trapped air, in such cases.
RVRamachandran Received on Sun Feb 27 06:43:00 2005