... mounted on the frame for disassembling and changing liners.4 .Suction inlets of F-1300 and F-1600 mud pumps are ... 1600 mud pumps are fitted with API#7 valve pots. The suction valve and the discharge valve are interchangeable.6 .Cylinders are made of forged ... are interchangeable.7.Cylinders, liners, pistons, valve and seats, valve springs, seal rings, valve covers and cylinder covers at the fluid end ...