Air-operated double diaphragm pumps; pump control valves; valves for pumps; positive displacement pumps; pump diaphragms; pump impellers; pumps and compressors as parts of machines, motors and engines; shafts for pumps; submersible pumps; sludge pumps; slurry pumps; air filters for air-operated double diaphragm pumps, positive displacement pumps, pumps as parts of machines, motors and engines, submersible pumps, sledge pumps and slurry pumps; flanges being structural parts of air-operated double diaphragm pumps, positive displacement pumps, pumps as parts of machines, motors and engines, submersible pumps, sledge pumps and slurry pumps; air-driven pumps for machines; centrifugal pumps; rotary pumps
Machinery