Rugged low cost pumps with all parts renewable by replacement. Radial piston arrangement, with 3, 5 or 7 pumping elements. Oil immersed type, open execution, face mounting, valve controlled, fixed delivery, bi-directional rotation of shaft. Also available with extension shaft / bracket for through drive. For coupling the pumps to the electric motors standard bell housing assemblies are available. These are also available with extension shaft to couple low pressure pumps.