MicroFlow F6720

  The flowmeter must be preceded by at least twenty diameters of straight
uninterrupted flow line and followed by a minimum of ten diameters. Ideally,the total length of straight pipe should be broken only where the flowmeter is inserted. Exceptions are full bore ball valves, small dead-end (no flow) pres-
sure taps and thermowells. Steam traps should be located just ahead of and Just beyond the straight run. If a bidirectional flow measuring unit has been ordered, the flowmeter should have 20 diameters of straight pipe on each
side of the flowmeter unless the everse flow accuracy is less important.