Unlike water and petroleum which are homogenous Newtonian fluids, slurry is a complex fluid that could have very unstable fluid properties and are known as the Non-Newtonian fluids. Slurry rheological properties can be affected by the size of grind (fines) or the concentration of solids in the mixture. The finer the solids, the higher is the probability of producing a homogenous fluid mixture. A sample of this mixture is toothpaste where solids do not separate while in static condition (at rest). For slurry with coarser particles, a heterogeneous fluid mixture may be attained with proper agitation or in turbulent flow. The solids readily separate when fluid is at rest. In the slurry transport industry this fluid property is very important to define to ensure a safe pipeline design and avoid plugging. There are two common types of slurry transport in the mining industry. The transport of tailings and the transport of concentrates. Tailings are generally having coarser particles but with more fines due to the presence of clay. For this reason, tailings transport can either be in homogenous laminar flow when at high concentration or heterogeneous turbulent flow at lower concentrations. Whereas, concentrate slurry transport, due to the absence of clay, generally falls under heterogeneous flow. In this case, for heterogeneous fluids, it is important to consider the flow of fluid in the turbulent regime to avoid solid settling. In heterogeneous flow, heavier particles could settle if fluid velocity is below critical velocity (defined as the point where particles begins to deposit to form a moving bed) or if there is not sufficient agitation (or turbulence) to suspend solids. The flow of fluid below critical velocity is known as the deposition velocity while the flow that marks the change from laminar to turbulent is known as the transition velocity. This paper is to discuss the value of transition velocity in the transport of concentrate slurry at heterogeneous flow. Actual loop test results are evaluated to determine whether deposition or transition velocity governs in concentrate transport. It will also evaluate if calculated transition velocity (based on known published formulas) correlates with actual loop test results. Results may then be used as guideline for future concentrate pipeline design.