Posts Tagged ‘stainless steel’
Critical applications of conveying mixtures of acidic hydrocarbon/water to the washing system are a challenge for any pump manufacturer. This was also the case in one recent project Lewa handled in the Emirate of Abu Dhabi. Lewa have designed and supplied 16 pumps to a major construction company in Abu Dhabi specifically designed to handle this critical application. Two processes required to pump
- liquid hydrocarbons from the flare knock-out drum or the blow-down drum respectively and
- convey the acidic hydrocarbon/water mixture back into the oil line to the washing system
Since the differences in these two processes are only minor, it was possible to supply 16 mechanically identical pumps of the Ecoflow series, driven by 55 kW electric motors.
The new Wilden air-operated double-diaphragm (AODD) pump series 430 and 830 Advanced FIT is produced of 316 stainless steel for higher corrosion resistance in aggressive chemical applications. These sieries have been specifically designed to be direct replacements for existing Wilden 38 mm (1-1/2”) and 51 mm (2”) Advanced pump installations.
- bolt-to-bolt and
- 316 stainless steel and
- polypropylene plastic materials of construction,
- joining the original aluminum and nickel-plated aluminum offerings.
The introduction of the stainless steel and plastic options allows Wilden AODD pumps to be offered for a greater number of applications, including
- sanitary (food & beverage, personal care products and pharmaceuticals),
- hazardous chemicals and
- corrosive environments.
In all processes for steel degassing under vacuum gases and vapors are formed that might be dangerous. Essentially CO and H2 as well as the vapors of volatile metals are released from the steel surface. Explosion protection in vacuum plants especially those that generate a large quantity of CO by the use of oxygen for decarburization so far has been assured by overpressure flaps at the metallurgical reaction vessels, alarm devices for water leakage, sensors for pressure and temperature as well as emergency venting with nitrogen. With the introduction of mechanical vacuum pumps efficient installations for gas cooling and dust separation became necessary.
Special eye-catcher at the KSB stand at drinktec in Munich from 16 – 20 September 2013 will be the new SuPremE pump motor. Developed by KSB, it is a real highlight where saving energy is concerned. With its synchronous reluctance principle the motor provides users with a technology that is ideally suited to fulfil all future requirements for energy-efficient drives of pumps. It meets the planned IE4 efficiency requirements to IEC/CD 60034-30 Ed. 2 already today.