Archive for the ‘Pump Technology’ Category

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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An umpteen number of manufacturers facilitate pump technology searching

Thursday, May 24th, 2018 von admin

www.starpumpalliance.com a new selection portal for the pump users. The Star Pump Alliance has set itself the goal to assist professional users of pumps in selecting pump technology tailored to fit their specific applications. “Our portal offers extensive information about pump technologies as well as a tool for the individual selection of pumps with access to the product portfolios of different brands. This selector proposes to website visitors one or several suitable pump technologies for each specific application on the basis of the application characteristics the users have entered”, Kai Stegemann, General Manager of Star Pump Alliance GmbH.

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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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Triple the service life by a stator adjustment unit

Thursday, April 26th, 2018 von admin

The xLC unit was added to the product portfolio of the Nemo progressing cavity pump from Netzsch. This triples the service life of the pump, particularly when conveying difficult, abrasive media. When wear occurs in the rotor-stator system, this new unit allows the performance of the pump to be re-established by adjusting the preload between the conveyor elements.

 

 

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New plunger pump head reaches up to more than 1,000 bar

Friday, April 13th, 2018 von admin

The plunger pumps feature an integrated gear, which enables very compact construction with maximum efficiency.

For the purpose of upgrading a cracker in a Chinese refinery a total of five plunger pump skids should be brought into operation by Lewa. Those in charge of the project opted for three triplex and two quintuplex plunger pumps in accordance with the API 674 standard. These pumps are equipped with the new KMC-L pump head with reduced clearance volume. This head consists of a single forging: The suction manifold is integrated as a result, allowing for a reduction in the sealing surface and thus in any potential leak points. An additional advantage is the fact that the suction side can be designed to handle backpressure, eliminating the need for a safety valve in the suction line. The new design makes it possible to realize pressures up to 1,075 bar. All pumps in use have been produced in Germany and mounted to a complete system in the Chinese plant.

These plunger pumps have a drive output of 260 kW and a flow rate of 25 m3/h. The suction pressure loss of the pump heads is very low, therefore a low suction pressure is needed and it is often possible to operate without a booster pump.

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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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Pumps for wet flue gas desulfurization

Tuesday, April 10th, 2018 von admin

A cement factory in Texas was among the first in the USA  to install wet flue gas scrubbers in order to reduce the sulfur dioxide emissions. This is a demanding application for pumps because the gypsum slurry that “scrubs” the gas is highly abrasive and corrosive.

Special pumps with housings and impellers made of mineral cast prove to be a perfect solution here.

Wet Flue Gas Desulfurization Scrubber systems are a vital component in various industries due to strict environmental regulations. First applications were coal fired power plants and waste incineration plants. Today, other industries utilize wet scrubbers in their day to day operations as well to scrub flue gas emissions from burners that utilize coal as a fuel source.

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Sulzer at Achema 2018

Wednesday, March 21st, 2018 von admin

Sulzer will be offering chances to discover the latest developments in pumping technology and rotating equipment services.

At Achema in Hall 8.0, Stand A71 Sulzer offers an insight into the latest designs as well as developments in asset management and pump optimization software. One of the latest additions to the product lineup is the heavy duty axial flow CAHR pump range which is for applications involving highly corrosive liquids and slurries.

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Predicting Performance Curves of Centrifugal Pumps In the Absence of OEM Data

Wednesday, January 3rd, 2018 von admin

Technical paper by: Jayanthi Vijay Sarathy

M.E, CEng, MIChemE, Chartered Chemical Engineer, IChemE, UK

Chemical and Mechanical Engineers in the oil & gas industry often carry out the task of conducting technical studies to evaluate piping and pipeline systems during events such as pump trips and block valve failures that can lead to

  • pipes cracking at the welded joints,
  • pump impellers rotating in the reverse direction and
  • damaged pipe supports due to excessive vibrations

to name a few. Although much literature is available to mitigate such disturbances, a key set of data to conduct transient studies are pump performance curves. A pump performance curve is a plot between pump head and flow rate. In Greenfield projects, when no pump vendor data is available, a necessity arises to use performance curves to conduct pipeline/piping studies to check for parameters such as design pressure.

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