Archive for November, 2017

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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Extensive additions to Siemens pump converter

Monday, November 27th, 2017 von admin
The Sinamics G120 is the universal drive to address the widest range of application requirements such as pump drives. Siemens is extending its portfolio of Sinamics G120 converters to include a new frame size, the FSG with voltage ranges from 380 to 480 volts (V) and from 500 to 690 V.
This addition means that the innovative PM240-2 Power Modules now cover the entire power range up to 250 kilowatts (kW). The extremely compact design and standard integrated optional features such as integrated DC link reactor or integrated filter to achieve category C2, enable substantial space and cost savings in the control cabinet.

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Bubble-free filling of oil dampers

Monday, November 27th, 2017 von admin

Filling of oil dampers in low-volume and pilot production is mostly manual work. There is a lot of potential for improvement by a compact, flexible dosing system which includes a micro metering pump. This self-priming micro annular gear pump can work without an application of compressed air to the reservoir.

On the one hand, this saves the cost of compressed air including the necessary devices and, on the other hand, avoids the introduction of compressed air into the silicone or hydraulic oil. The medium can be filled bubble-free, gently and without loss of quality.

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Technical Paper: API-all-steel coupling with optimised performance

Friday, November 24th, 2017 von admin

Marc Egelwisse

In the Arpex all-steel multi-disk coupling the Flender GmbH, a 100 %-held Siemens subsidiary, is marketing a coupling that has proved itself over many years. Marc Egelwisse, product manager for Arpex couplings, and his team have further developed this series with a focus on three aspects:

  • increase in the specific power,
  • optimisation of the areas of application and
  • reduction of complexity of the type series.

The results show it was worth it:

  • 70 to 100 % higher torque,
  • 40 % greater angular misalignment,
  • 10 % higher maximum speed and
  • 14 instead of the 42 design variants existing hitherto.

“Because of the high torque capacity and the optimised speed and bore capacity of the new N-Arpex we are confident that we are offering what is at present the world’s best-performing coupling”, says Egelwisse.

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Inspection software for explosion-protected plants – paperless, seamless

Thursday, November 23rd, 2017 von admin

PEC-EX is the latest software module the company R. Stahl introduces exclusively for the plant managers working in the explosion-protected plants. The primary objective of this solution is to optimise the planning execution and documentation of the inspections and tests conducted periodically in a plant.

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Technical Paper: Vacuum solutions for the European XFEL

Thursday, November 23rd, 2017 von admin

View inside the XFEL accelerator tunnel (© European XFEL / Heiner Müller-Elsner)

The beginning of September 2017 marked a milestone in the history of nanotechnology research: With the inauguration of the European XFEL (X-Ray Free-Electron Laser), the world´s largest and most powerful X-ray laser was officially put into operation. It will open up completely new areas of research and insights into the nanocosmos that were never achieved before.

The European XFEL is a new international research facility, in which 12 European countries participate. The non-profit society European XFEL GmbH is responsible for the construction and operation of the X-ray laser.

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Tailor-made Slurry Pumping Solutions

Thursday, November 23rd, 2017 von admin

After the took over of almost complete solid matter pump programme for abrasive and abrasive/corrosive media from the insolvent company Arthur Habermann the Aurum Pumpen GmbH has set itself the objective of improving both the design and the materials engineering of its pump series. In initial orders for a major customer, newly designed pump solutions have already been developed, implemented and built.

Because the Aurum-Habermann heavy duty pumps are true solids handling pumps in terms of impeller geometry and design, these cannot conform to the lightweight construction of a standardised pump, and are thus individually adapted to requirements. In terms of materials, Aurum supplies the Habermann heat-treated steel qualities that have proven themselves over decades.

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Sulzer in Glasgow Sets the Standard in Maintenance and Repairs

Wednesday, November 22nd, 2017 von admin

Increasing pressure to reduce costs and optimise performance is causing many industries to reassess the way in which they tackle maintenance issues. Sulzer’s Glasgow facility has been quick to expand the capabilities and expertise of its staff to ensure additional benefits for customers and help meet these demands.

Scott Tyre took on the Glasgow service centre manager’s role in early 2017, after joining Sulzer as Contracts Manager in June 2016. He comments: “The Glasgow Service Centre is continuously improving to keep pace with its customers’ demands and the staff pride themselves in delivering the best possible technical service. Our challenge is to provide expert engineering support along with concise customer communication and dialogue, 100% of the time.”

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The basis of rotary positive displacement pump technology

Tuesday, November 21st, 2017 von admin

This is a tale of two pump curves in storage and terminal applications: one steadily bending downward from pump shut-off head, the other barely a curve at all. Both curves match two different pump technologies used in the oil & gas industry. Only one of those pump technologies can achieve certain critical objectives for reliably pumping hydrocarbons with highly variable fluid properties and under varying operating conditions.

The nearly vertical “pressure stiff” performance curve of rotary positive displacement (PD) pumps stems from a basic principle: As a volumetric fluid handling technology, rotary PD pumps create flow and are insensitive to system pressure changes. They deliver a nearly constant volume of liquid over a range of discharge pressures. If your flow or pressure demands change frequently, or even occasionally, on any given day, keep this fact in mind when selecting pump technology for hydrocarbons.

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John Crane: Metallic membrane coupling

Tuesday, November 21st, 2017 von admin

The Metastream T Series are metallic membrane couplings acc. API 610 and API 671 for pump drives

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