Abstract: Aspects of the disclosure relate to pumping systems, apparatus, end related methods for longer strong lengths and reduced footprints. In one aspect, pumping systems facilitate increased horsepower generated at lower cycle rates and a lesser number of pumps. In one implementation, a pump system comprises a hydraulic power end coupled to and located in between a first fluid end and a second fluid end. The hydraulic power end comprises a hydraulic cylinder assembly having a piston, a first rod coupled to the piston and to the first fluid end, and a second rod coupled to the piston and to the second fluid end located on the opposite side.

Abstract: An injector for flexible tubing has endless drive conveyors on opposite sides of a pathway for the tubing. The drive conveyors include gripper blocks that work in opposing pairs along the tubing pathway. The pairs of gripper blocks are clamped to the tubing and moved along the tubing pathway to either inject the tubing into a well or withdraw the tubing from a well. The gripper blocks are clamped to the tubing by way of skates, which work in opposing pairs. The skates have rollers, with rollers contacting the gripper blocks. Each roller has two ends, which ends are received by bearings inside of mounts on the respective skate.

Abstract: A valve and fitting apparatus to control flow of fluid. The apparatus includes a main line to allow fluid flow therethrough and a branch line in fluid communication with the main line to allow fluid flow through the branch line in a single direction. A plate is pivotally operable to move between an open position and a closed position at an acute angle to the flow in the branch line. A stem assembly mechanism pivots the plate between the open position and the closed position.