Traditionally used as a cement binder for hot-slab paving, liquid bitumen must be handled at very high temperatures in order to keep it at a workable viscosity. However, even at high temperatures liquid bitumen can be an extremely viscous and shear-sensitive product. Therefore, shipyard operators and tanker owners demand a pumping technology that has been specifically designed to transfer highly viscous liquids over great distances. Realizing the importance for pumping equipment that feature the design and performance characteristics required for transferring highly viscous liquids, Blackmer offers its S Series Twin Screw models for these marine applications.
Posts Tagged ‘screw pump’
The pump casing of Fristam FDS pumps comes in three parts, consisting of an intermediate flange, the screw casing and the pump cover. This enables individual adaptation of the connections to any conceivable production system requirement. Thanks to central positioning of the gearwheels inside the bearing support area, the entire pump comes in a very compact design. Moreover, its massive shaft has reinforcements in the area of critical diameters to ensure maximum rigidity. Further stability is achieved through a combination of particular large bearings and an increased bearing distance. The result is smooth running with minimal wear.
S Series are self-priming double-ended positive displacement pumps available with or without external timing gears and bearings. Twin and triple screw designs provide complete axial balancing of the rotating screws and their timing technologies eliminate metal-to-metal contact with the pump.
S Series pumps are Atex-certified for use in explosive or dangerous environments, and have been specifically designed to address the difficult pumping challenges found in the oil & gas, process and marine industries. S Series pumps provide solutions that can meet the toughest application challenges regardless of temperature, viscosity or pressure.
Maag presents a new S Series of screw pumps that offer the process industries a variety of options for conveying challenging fluids. These rotary positive-displacement pumps provide numerous advantages over conventional technologies including
- Atex-certified for use in explosive or dangerous environments.
- Self priming capability, good suction performance
- Excellent speed/output linearity
- Low pulsation
- Constant flow even at considerably different pressures and volumes
- Compact footprint and ease of maintenance.
Wangen Pumpen, German manufacturer of high quality progressing cavity pumps and hygienic twin screw pumps has partnered in distribution with Flowtrend Inc., USA, an ISO 9001 certified manufacturer of high-quality fluid handling. Flowtrend Inc. will distribute the state-of-the-art hygienic twin screw pump within the United States and Canada. The hygienic twin screw pump adds to Flowtrend’s already extensive line of products that cover the food, beverage, and pharmaceutical industries. Wangen Pumpen serves this distribution channel to penetrate new markets and develop their international presence.
Six sizes cover a capacity range from 40 to 880 l/min. (8.8 to 232.5 GPM) with a maximum discharge pressure of 100 bar (1450 psi).
The temperature of the liquid may be as high as 100 °C (212 °F); permissible viscosity is between 3 and 760 mm2/s.