New Problem: Main relief valve keeps coming apart in manifold

摘要

A meat processor has several meat dumping machines. The machines load a tub on a lift that would rotate up and tip, dumping meat into a grinder. The processor had problems with the meat sticking to the sides of the tub. The operator would cycle the lift at the top, "banging" it against a stop created by the cylinders bottoming out fully stroke. This helped force the meat to release. They were having occasional problems with the Sun Hydraulics main relief valve that was screwed into a 2-bank valve manifold. The nose portion, where the tank flow exited the valve, was blowing off. The valve appeared to be made in two pieces with a round key holding the nose into the main body.