Spray apparatus and method of operation for spraying heavy viscous material

摘要: A spray apparatus and method is disclosed for spraying heavy viscous material. The includes a pressure tank containing supply of the Pressurized air supplied to upper end forcing material down through an outlet port at tank's lower into hose leading gun. follower plate floating on surface carries stopper cone which aligned with port. As level nears tank, moves against immediately positively shut flow off. cleaning tool provided valve in combination sponge adapted fitting hose. pushed by first pass, controlled hand-operated valve. then disconnected water used push least additional pass.