APPARATUS FOR APPLYING LIQUID FOR A ROLLING MILL

摘要

An apparaus for applying liquid to mill rolls is described which has a bar (12, 14) with two longitudinally extending manifolds (28, 30). Into the bar are inserted spray nozzles (22, 24, 26) and associated diaphgragm valve structures (36). One of the manifolds (28) is for the supply of coolant and/or lubricating fluid to the nozzles via the valves (36). The other manifold (30) has a control fluid (air) under pressure which is used to operate the diaphragm valves (36) to connect or disconnect the supply of coolant/lubricant. To control the control fluid each diaphragm valve unit (36) has a solenoid operated valve (98) for selectively connecting the air at pressure in the second manifold (28) to the diaphragm valve (36).