Horizontal Power Units
Power units designed with the electric motor/pump assemblies mounted horizontally are the most common found throughout industry. This design is used where floor space is available, head room is limited and in cases with a large number of pump motor assemblies where mounting the pumps vertical is not practical.
Our engineers and system designers layout the reservoir, motor/pump assemblies and other components to minimize the floor space required taking into consideration the field connections to the hydraulic system and the power feed for the electric motor. They also determine which of the components are best supplied into a hydraulic manifold to minimize the number of external connections.
In most applications our power units are constructed with an electrical enclosure that contains all the control logic for the hydraulic system. More than half are supplied with the motor starter contactor(s) mounted on the unit. The electrical enclosures are designed by our engineering staff, fabricated in our UL-508 panel shop and installed by our trained technicians. This complete hydraulic and electric capability is unique within most power unit suppliers.
Following fabrication each unit is fully function tested in a fully documented Factory Acceptance Test. Our clients are invited to attend and witness the test procedure. With testing completed the units are painted to our customers specifications and made ready for shipment.
The example shown to the right is a horizontal power unit with three (3) pump/motor assemblies, fourteen (14) explosion proof rated directional valves, three (3) air/oil coolers, full pressure side and return side filtration and an electronics enclosure housing the control logic and electric motor contactors. It is used in an Arctic Oil Drilling Rig to supply a Lift and Roll system on a 9 million pound pipe storage module.
The other examples below provide a broader cross-section of horizontal power units. A “right-click” of the mouse expands each picture and lists the specifications for each unit.
