Maintenance and Troubleshooting Manual
Section 1: Routine maintenance
3-9000-764 Rev F
December 2017
Pipeline cleaning maintenance
7
1.3.2
Pipeline cleaning maintenance
Straightening vanes or flow profilers must be removed during pipeline cleaning maintenance
operations (“pigging operation”). if the meter run is pigged with a flow conditioner in line,
pressure may build up and cause the pipes and flanges to burst and severely injure personnel.
The excessive pressure may damage the meter or the transducer ports may collect debris which
may impede data acquisition and flow measurement.
BURST HAZARD
Before pipeline cleaning and maintenance (“pigging operations”), remove straightening vanes or flow
conditioners. Failure to do so may cause excessive pressure in the meter system, resulting in serious injury/death
or equipment damage.
3814 Liquid Ultrasonic Flow Meter with flow conditioner for uni-directional flow
3814 Liquid Ultrasonic Flow Meter with flow conditioner for bi-directional flow
Flow conditioner
Straightening device
Flow conditioner
Straightening device
Flow conditioner
Straightening device