RUHRPUMPEN VCT PUMP-Vertical circulator pumps, centrifugal axial (diagonal-flow) and centrifugal, single-stage and multi-stage. Pumps of VCT product line are semi-submersible. These are vertically suspended pumps, single case, multi-stage with diagonal or semi-diagonal impellers. If required, they can be designed in compliance with API 610 standard latest edition (VS1 type). Also they can be made with a double case, then they become VMT model pumps (VS6 type as per API 610).