Archive for the ‘Chemical’ Category

Large rotary lobe pump for sensitive products

Tuesday, June 19th, 2018 von admin

Gea is expanding its Novalobe Hilge pump range with the large-volume. This rotary lobe pump is specifically designed for pumping and dosing highly viscous media with large particles. This new development meets the hygiene standards of the EHEDG guidelines for

  • aseptic and sterile applications
  • in the pharmaceutical,
  • chemical and
  • food industries.

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Elbow pump made from plastic

Monday, June 18th, 2018 von admin

The use of elbow pumps is always indicated when large flow rates are to be pumped to low heads. This requires a propeller-like impeller with both axial inlet and outlet, which guides the out warding flow into a pipe bend. This geometry then allows the introduction of a long projecting pump shaft in the pipe bend up to the impeller. The bearing of the pump shaft takes place outside the pumping chamber and must be generously dimensioned in the axial direction. The adjustment of the delivery head is usually done with a belt drive between the pump shaft and motor. The new ROPP model – showcased at Achema 2018 – of the Germany based pump manufacturer Wernert is also based on this classic pump concept, but with a few additional technical features that should be of interest to the experts and pump users in the chemical industries:

New 3-Inch AODD pump

Tuesday, June 12th, 2018 von admin

At Achema 2018 Aro introduced the new EXP Series three-inch non-metallic, air-operated diaphragm pump for chemical and water processing applications.

These pumps can transfer up to 20,000 liters of fluid in 30 minutes. That equates to a 47 percent increase in flow compared to the Aro two-inch pump, and a flow rate of up to 270 gallons per minute.

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Suspended pumps with hydraulic system of standardised chemical pumps

Friday, May 18th, 2018 von admin

The Estigia type series extends KSB product portfolio for the chemical and petrochemical industries and other applications. It will be showcased at Achema 2018 trade fair in Frankfurt.

The low-pressure suspended pumps are designed for vertical wet installation in a closed tank under atmospheric pressure. For the installation depth, various lengths ranging from a minimum of 852 mm to a maximum of 6402 mm are available and three discharge pipe diameters can be selected for each pump size.

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Low flow with high head pump applications

Friday, May 18th, 2018 von admin

Side Channel Pumps are self-priming pumps that operate in low NPSH conditions & have the ability to handle up to 50% entrained gas. These pumps run at very low flow rates, while generating medium to high differential pressures.

Side Channel Pump specialist, Sero PumpSystems, will showcase these capabilities and the operation of multifunction pumps with their Mini Pump Lab (Fig.) at 2018 Achema  trade show in Frankfurt. Sero will demonstrate an affordable, easy and effective control of side channel pumps utilizing “Industrie 4.0”, as well as duty point monitoring within the pump’s performance range.

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High-speed metering gear pumps for complex applications

Friday, May 4th, 2018 von admin

Oerlikon Barmag pumps are used in processes at the chemicals, plastics, paints and lacquers industries as well as in PUR applications. One of the biggest challenges is metering poorly-lubricating media. The pump manufacturer wil show at Achema in Frankfurt the GM and GA ranges an a high-speed pump with sealed product space.

The main advantage of the high-speed pump is the sealed product space. The space within the pump that comes into contact with the media is therefore limited to the area around the gears. The external, ball-bearing support points in the high-speed pump are externally lubricated, hence ensuring that the product to be metered does not cause damage as a result of poor lubrication.

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Pump monitoring with Atex certification

Monday, April 23rd, 2018 von admin

At this year’s Achema, Allweiler will exhibit its intelligent condition and operation monitoring system (hall 8.0, booth D63). Known as IN-1000, it is now also available with Atex certification for use in EX zones. IN-1000 was developed specifically for Allweiler pumps that are used in operationally-critical and environmentally-sensitive applications in chemical engineering.

The IN-1000 can be used for a wide range of condition monitoring applications, from simple, single-pump installations to complex, multi-pump systems while improving safety and reducing operating costs simultaneously.

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Pumping hazardous liquids with environmental safety in mind

Wednesday, April 11th, 2018 von admin

Fig. 1

Sero PumpSystems GmbH is a German based manufacturer of side channel pumps.  These pumps are designed for low flow and medium to high pressure / head applications.  Side channel pumps are self priming, able to handle up to 50% entrained gas and require low NPSH.  Sero provide reliable solutions for oil and gas production / processing, petro-chemical / chemical services, marine applications and many other industrial pump requirements.

  • The flow range is 0.3 to 42 m³/h with heads of 30 to 1,100 m.
  • Temperature range is – 60 to + 220 °C.

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What To Consider When Selecting a Filter-Press Pump

Friday, February 2nd, 2018 von admin

Fig. 1 A typical chamber filter press being fed by a Almatec high-pressure air-operated double-diaphragm (AODD) pump

Technical paper by Peter Schüten:

High-Pressure Air-Operated Double-Diaphragm (AODD) Pumps Deliver The Operational Advantages Necessary For Optimized Operation Of Chamber Filter Presses.

In many industrial processes that feature the handling of liquids, the substances that are being transferred may occur in an aqueous or “muddy” state, with the liquid portion needing to be removed. This liquid-removal stage may take place during the production process – for example, in the filtration of edible oils or yeast solutions – but it more frequently occurs at the end of a process like wastewater treatment when the waste sludge that has formed must be withdrawn. Since the disposal of such sludges is calculated based on weight and volume, their thickening and drying is particularly lucrative for the processor. During the thickening and drying process, the sludges are treated using chemicals and/or physical processes so that the waste sludge forms into flake-like solids. After adjusting the pH level to neutral or alkaline via the use of milk of lime, the subsequent dewatering process separates the water for disposal, with the remaining volume of sludge significantly reduced.

The simplest technology for this process involves collection and thickening of the sludge through the use of gravity. However, it is significantly more effective to use technical drying methods via processes such as centrifuges and evaporators, or more commonly, chamber filter presses (Fig. 1).

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Heat transfer oil circulation pump acc. to DIN EN 733

Saturday, December 9th, 2017 von admin

Fig.1 The new NKX heat transfer oil circulation pump

The pump manufacturer Dickow has developed a new pump line NKX for circulation of thermal oil. The pump casing is designed for 16 bar and 350 °C. The new pump line extends the application limit of the previous NKLs-type. The new NKX will replace the series NKLs with exactly the same dimensions in future.

The NKX is used as a circulation pump for hot oils in industrial heating plants/units. The performance range covers capacities up to 400 m3/h and differential heads up to 90 m in 50 Hz services; and capacities up to 2,500 US-gpm and differential heads up to 400 ft in 60 Hz services. The dimensions and performance range of these centrifugal pumps are according to DIN EN 733, that means range is subdivided into different pump sizes in order to achieve best efficiency for all service conditions inside the envelope.

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