These Multistage Centrifugal Surface Pumping Systems are Suitable for High Pressure Applications

Building on downhole electric submersible-pump technology, the SPS (Surface Pumping System; photo, p. 32D-4) is a low-maintenance, cost-effective alternative to plunger (triplex, quintiplex), split-case centrifugal, high-speed centrifugal and canned vertical turbine pumps in a variety of industrial surface-fluid-movement applications. The SPS systems feature a directly-coupled, multistage centrifugal design ideally suited for most high-pressure, low- to medium-volume, and environmentally sensitive applications. System design engineers frequently specify SPS units because of their low maintenance requirements, the reliability of their single low-pressure mechanical seal, their lower whole-life-cost, and the ability to easily repair or replace the units as needed, says the firm. — Wood Group ESP, Inc., Houston, Tex.