Posted 11/5/2026 07:23 (#11794983 - in reply to #11794902) Subject: RE: 3" fertilizer flow meter part 2 Dura Meter
Near Intersection of I-35 & I-90 Southern Mn.
DREWSDAD - 11/5/2026 06:24
if it was me, i would put at least 3 ft. of straight piping both in and out of the meter.
The old rule of thumb for a flowmeter is to have 10 times the diameter of straight flow on both the inlet and outlet of a flow meter. So for a 3" flowmeter, the rule would suggest 30" of straight flow so the 3' suggested would be adequate according to the rule.
I have broken this rule many times due to space restrictions and gotten by with it. It is still a good rule to follow if at all practical. The idea of the straight pipe is to reduce turbulence. In certain situations with good back pressure, a shorter path is acceptable.
3" fertilizer flow meter part 2 Dura Meter
