A custody transfer static mixer is designed to meet the special requirements and standards for custody transfer/fiscal measurement.
They are specifically designed to meet the rigorous API8.2 &ISO 3171 standards, utilizing the unique dual leading edge technology. A huge range of materials are used in this static mixer.
Custody transfer static mixer or CT mixer is installed upstream of the crude oil sampling transfer line.
CT mixers are installed in petroleum custody transfer sampling line such as ship and tank terminals or refinery transfers in combination with a unit where proper crude oil metering is an absolute must. These mixers are supplied with two inch flanged port for the automatic sampler connection.
These mixers are specially designed to solve conventional custody transfer sampling and mixing problems.
It may be installed in a horizontal or vertical pipeline. In a horizontal line, the first mixing element is set 30 degrees off the center line so the bottom mixing element ear acts as a ramp, forcing the bottom water up in to the crude.
The internal vortices or back-mixing created by the mixing elements also send a portion of the flow back upstream within the mixer, minimizing spikes of BS&W concentration. This combination of mixing helps the custody transfer sampler maximize its accuracy.
It understands smart mixing avoiding overmixing or emulsifying, and produces a very uniform distribution and droplet size of the water in the custody transfer metering process. An important feature of a custody transfer static mixer is the special exit straightening fin that cancels all the axial rotation of the flow downstream of the mixer.
Custody transfer static mixer has been in intensive development over several years. After months of product development and laboratory testing, engineers derived the CT mixer design as a recommended solution to pipeline mixing application. It is designed specifically to optimize accuracy of crude oil sampling.