ROTAN - Model MD101EFDK-1U33 - Magnetic Driven Pumps
From Marine & Offshore
Pumping Molten Sulphur is most challenging. Sulphur temperatures must be controlled within a 120-155o C range. Outside this temperature sulphur solidifies. Sulphur has a distinct odour and is highly corrosive in the presence of moisture. Where leakage from common packed style pumps was unacceptable, a ROTAN magnetically driven pump unit was offered on a trial basis where the chemical is used in the production of soap and shampoo.
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Although we were concerned with sulphur solidifyin...
Although we were concerned with sulphur solidifying and closing the internal circulating pathways, our first fully jacketed ROTAN® model MD33EFDK-1U33 proved successful. Additional sales followed among leading soap manufacturers.
Following our initial success, ROTANP pumps have been placed in more aggressive service where sulphur is delivered under higher pressures and burned in the production of Mercaptan. Mercaptan is used as an odorant within natural gas and used in the production of plastics. In this service, stainless steel materials were required along with tungsten carbide bearings and thrust washers. Following success here, the same ROTANP model was chosen within a sister plant operation.
Molten Sulphur is burned to produce S02 in a process that conditions flue gas in coal burning power plants. Although small diaphragm metering pumps (.19 to .42 gpm) deliver sulphur to the process, a ROTAN* model MD101EFDK-1U33 is used to transfer sulphur from trucks and rail cars.
We have recently uncovered another market where sulphur is used as a crosslink agent in the production of modified asphalt formulations and the search continues where flow ranges from 2-150 gpm. Diaphragm pumps are used in lower flows and specialized centrifugal pumps are selected when higher flows are required. Care should be taken since some sulphur products are corrosive and some include abrasive contaminants. When necessary, stainless steel and abrasive resistant tungsten carbide should be considered.
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