7 Pumps being machines; pump diaphragms; pump heads, namely, machine parts specially adapted for pumps being machines; valves being parts of machines; valves for pumps; safety valves being parts of machines; ball return valves being parts of machines; machine parts, namely, pistons and plungers specially adapted for pumps being machines; pump impellers; machine parts, namely, pump ducts specially adapted for pumps being machines; comminutors for solid materials, namely, power operated tools in the nature of grinders, electric good grinders; wheels being parts of machines, namely, cutting wheels for pumping stations; shutter valves, namely, valves being parts of machines; separators, namely, machines for separating solids from liquids; shock pressure attenuation ball valves, namely, ball valves being parts of machines; pump control valves; shafts for pumps; pump installations, namely, sump pumps, sludge pumps, wastewater pumping stations, bilge pumps, electric pumps, hydraulic pumps, vacuum pumps, lubricating pumps; pump diaphragms, namely, diaphragm pumps for liquid material; pump diaphragms, namely, diaphragm pumps for pumping liquid material; pump diaphragms, namely, diaphragm pumps for pumping semi-liquid material; machines for conveying solids; pump-motor assemblies, namely, electric motors for machines, electric starter motors; filter presses for chemical processing, namely, machines for separating liquids from solids, filtering machines for chemical processing; transmission cases, other than for land vehicles; gear boxes, other than for land vehicles; submersible motor pumps, namely, electric pumps; pumping station assemblies, namely, housings specially adapted for pumps being machines, housings specially adapted for pumping stations in the nature of pumps being machines; control valves for regulating the flow of gases and liquids being parts of machines; pulsation dampeners specially adapted for pump diaphragms; hydraulic, hydropneumatic and reflective sound, vibration and pressure dampers, namely, machine parts in the nature of dampeners specially adapted for pumps being machines; wastewater pumping stations; homogenizors, namely, machines for homogenizing solids-contaminated liquids and fluids; machines for wastewater treatment, in particular separators, in particular for light or heavy materials, in particular machines for separating fat, petroleum, sediment, mineral light liquids, starch and coalescence separators being machines for separating liquids from solids