Manifold valve assemblies with cleaning solution supply

摘要

A plurality of manifold valve assemblies each including pairs of generally vertical valve cylinders each cylinder having actuator rods that are coaxial with each other, the rods being independently actuatable by their respective actuators. Each cylinder has an inlet port at its top each connected to a different supply conduit and each being connected by a crossover conduit near its lower end to the lower end of the other cylinder of the pair. One of the bottom ports of each pair is connected to a drain, thereby forming a leak detector, while the other bottom port of each pair is connected to a line supplying a clean-in-place liquid. Valve seat 45 is positioned below valve plug 40 so that it is closed by extension of actuator rod 32.