Archive for the ‘Chemical’ Category

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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An ‘alignment free’ pump

Wednesday, November 29th, 2017 von admin

It is imperative that pumping systems are designed and operated in a way that reduces the amount of harmful stress placed on components. One area that has been difficult to achieve and maintain is shaft alignment. Failure to properly align a pump’s mating shafts will eventually lead to challenges associated with shaft fatigue and failure, resulting in compromised pumping-system uptime, reliability and safety. This can then result in costly maintenance or even knock the pump out of service and halt production.

Focused on this problem, Blackmer developed GNX Series sliding vane pumps, which are called by the manufacturer “industry’s first alignment-free”. It is a reduced-speed pump for use in both portable and stationary applications.

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Klaus Union: New twin magnetically coupled screw pump acc. API 676

Thursday, September 21st, 2017 von admin

With the proven Klaus Union magnetic drive and a modular design, the pump manufacturer offers a highly flexible and robust seal-less magnetically coupled twin screw pump: the SLM DSP-2C. Due to its seal-less design and leakage-free operation, it is especially suitable for applications in the chemical and petrochemical industry.

Due to its robust design and leakage-free operation, the new Klaus Union twin screw pump series SLM DSP-2C meets precisely these requirements. For this purpose, the pump manufacturer takes advantage of the established in-house modular pump system, which has proven itself for many years in the complete magnet drive pump range consisting of the pump hydraulic, magnet coupling and bearing bracket. High interchangeability and availability of spare parts as well as customisable suction and discharge flanges guarantee maximum flexibility to meet project requirements.

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Wilden: 13 mm (½”) Clamped Metal Pump

Friday, September 1st, 2017 von admin

This 13 mm (½”) clamped metal AODD pump PS1 is equipped with the energy-efficient Pro-Flo Shift Air Distribution System and its clamped configuration allows for easier maintenance, diaphragm replacement and cleaning.

The footprint of this AODD pump matches that of the Wilden PX1, which enables direct replacement of a PX1 with no repiping necessary. With less components and 7% more efficient than the PX1, the backward capability of the PS1 makes it an easy way to enhance and upgrade existing pump performance.

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Technical Paper: New hygenic twin screw pumps

Wednesday, August 30th, 2017 von admin

JEC LTD, leading sanitary pumps manufacturer in R.O.Korea, launched the JRZS Series of twin screw pumps gifted by extensively accumulated experience for hygienic pumping. These pumps are offering

  • a one-piece screw case with with larger radius corners and
  • a very compacted front loaded self-balanced mechanical shaft sealing system and
  • a fully drainable front cover design.

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