7 pumps, namely, centrifugal pumps, positive displacement pumps, compressed air pumps, electric pumps, hydraulic pumps, pneumatic pumps, reverse osmosis pumps, rotary pumps, screw pumps, sewage pumps, silt pumps, sludge pumps, submersible pumps, suction pumps and sump pumps and vertical turbine pumps; valves being parts of machines, valves for pumps, steam turbines; mechanical seals and mechanical seal assemblies for use with rotating machinery, and accessories therefor, namely, buffer fluid reservoirs, separators, barrier gas panels, seal coolers and seal flushing apparatus; cyclone separators; pneumatic rack and pinion actuators, pneumatic and hydraulic valve actuators and positioners for machines; electric motors for machines, filters for machines used in the chemical and fluid process industries, namely, filters for external flushing systems associated with mechanical seal assemblies, and component parts of the foregoing