Flowmeters - KVCF V-Cone Flowmeter

Since the cone is suspended in the center of the pipe, it interacts directly with the high velocity flow. The cone forces the high velocity flow to mix with the low velocity flow closer to the pipe wall. This is an important advantage of the V-cone at lower flowrate.

The V-cone primary element can be accurate to +/-0.5% of reading. The accuracy is dependent on application parameters and secondary instrument.

The V-cone primary element has excellent repeatability of +/-0.1% or even better

The turn-down ratio of the V-cone is much bigger than that of traditional DP meters. A typical turn-down ratio for V-cone is 10:1

Since the V-cone can flatten the velocity profile, so it has low straight pipe requirement. Only 0 ~ 3D for upstream;0 ~ 1D for downstream.

The contoured shape of the V-cone constricts the flow without impacting the flow against an abrupt surface. A boundary layer forms along the v-cone and directs the fluid away from the beta edge. This means the beta edge will not be subject to the usual wear by unclear fluids, as is the case with an orifice plate. The beta coefficient will then remain unchanged for long term and the meter so held accuracy for a much longer time.

Without impacting of an abrupt surface, the permanent pressure loss is lower than a typical orifice plate. Pressure loss is only 1/3-1/5 of that of orifice plate for the same β.

The unique geometry of the V-cone allows for a wide range of beta coefficient. Standard beta coefficients. range from 0.45, 0.55, 0.65, 0.75 and 0.85

Due to the contour of the V-cone not allow for stagnation area where debris, coagulum.or particles from the fluid could accumulate.

The short vortices will mix the fluid thoroughly just downstream of the V-cone. The V-cone is currently used in many applications as a mixer.

Signal fluctuation is only 1/10 of orifice plate