It is a parallel connectionsystem and this system USES the high-speedvalve as apilotvalvetocontrolthe twinthrottle which controls thepressure and the flux of the hydrauliccontrolsystem.
In a paper in the Journal of Immunological Methods, Wendy Dittmer of Philips claims to have achieved a 100, 000-fold increase in detection speed by hurrying magnetically tagged molecules of parathyroid hormone towards the spin valve with an electromagnet instead of allowing them to diffuse there.