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Air Operated Diaphragm Pump Accessories

The driving mechanism of diaphragm pumps is compressed air. These pumps are able to operate at a low interval velocity and move liquid containing abrasive materials and heavy solids. Air operated diaphragm pump accessories start with air supply fittings. Air lines, air filters and regulators will provide a precise air flow to the pump. Siphon tubes or hoses made from plastic (PTFE, polypropylene or PVC), stainless steel or carbon steel are accessories from drawing the pumped fluid from containers to the pump. Air control and cycle actuation products enable the operator to control the pump cycle rate with an electric signal from a power line communication (PLC) and originating from a pressure or pH sensors or even a simple line on/off switch.

Three-way valves control the air supply to the pump itself. Pulsation dampeners are accessories that can reduce the pressure fluctuations that are found in diaphragm and piston pumps. They also stop the pumped material from pulsating, splashing and foaming. There is a reduction of between 60 to 80 percent of the pulsation and the pump works under a steady pressure with little noise or vibration. This way the dampener prevents damage to the fluid pipe or to downstream valves. The pulsation dampener comes in a variety of materials such as PVDF, p-polypropylene, stainless steel, cast iron, aluminium or groundable acetal.

The diaphragms cam be chosen to be compatible with the pumped fluid and are made from Nitrile, Santoprene, Viton, PTFE, Hytrel or Urethane. The dampeners are made in a bolted construction design and so ensure that the vessel remains leak free and safe to work with. A light sensor located on the diaphragm’s air side housing will send output signals when a diaphragm failure occurs. This is a vital accessory for pumps used for moving hazardous and expensive material or in any remote location where the pump monitoring has to be constant during its use.

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