Enerpac’s ZA4-series of high-pressure hydraulic air-driven pumps is designed for in-plant, industrial applications and medium to large construction projects. It claims that its Z-Class pump design offers higher oil flow and bypass pressure – and the potential to improve productivity in any application. Because of their Atex 95 certification, the pumps are safe for use in environments such as refinery, petrochemical and oil & gas processing.
Reservoirs have capacities of 4-40 litres. A sight gauge on the 4- and 8-litre models and a level gauge on the larger reservoirs allow quick and easy oil level monitoring. The manual control valves come with a built-in user adjustable pressure relief valve. Standard models fit most applications, while many custom configurations are available.
The optional heat exchanger warms exhaust air to prevent freezing and cools the hydraulic oil.
Accurate flow
Smartflow is a sensorless flow measurement function that can calculate the flow of a centrifugal pump within 5% of the pump-rated flow – without the need for any external instrumentation. It is fitted as standard on the version 5.0 of Pumpsmart PS200 from ITT.
This function mathematically models the pump power curve with only four points of CDS pump performance curve data: BEP flow, BEP power, shut-off power and rated speed.
There are other new features. Advanced Pump Protection takes into account the hydraulic and mechanical loses associated when changing the speed of a centrifugal pump. A self calibration feature allows for an accurate representation of the pump to ensure it is protected at all speeds.
Positive Displacement Pump Protection (PDPP) is a sensorless function that protects a constant torque load such as a positive displacement pump. Because PDPP is used with constant torque loads it does not take into account changes in speed – as APP does. PDPP monitors for conditions such as high and low torque which can indicate that the pump has a blocked discharge or a starved suction.
Source and more info: eurekamagazine
The Hydraulic Institute today announced plans to offer a new opportunity for engineering consultants and pump users to participate as “Standards Partners” beginning in 2007.
Since 1917, the Hydraulic Institute has worked as the largest association of pump industry manufacturers in North America. North American corporations, partnerships, sole proprietorships and government agencies that are engineering firms, provide engineering services, or are end-users of pumps are eligible to receive a valuable package of HI products and services.
The Institute is pleased to announce that Mechanical Solutions, Inc. (www.mechsol.com), a 25-person engineering research and consulting firm active in the pump compressor and turbine industries, is the first company to become an HI Standards Partner. The company performs analysis, testing, and troubleshooting services for OEMs and end-users.
“Being associated with the Hydraulic Institute is useful for a company that wants to be a significant pump industry player,” said Bill Marscher, President and Technical Director of Mechanical Solutions, Inc. “Through participation in the standard development discussion process, middle management and senior staff are able to contribute while being able to network with the engineers and CEOs who are the movers and shakers of the industry. The new ‘Standards Partner’ website links and consultants directory also provide substantial support to our future business growth.”
Source and more info: waterandwastewater
Pumps & Systems Magazine, the magazine for pump users worldwide, announces the release of PumpCalcs, a new set of basic and expert calculators for plant, engineering, and maintenance professionals.
Users can reach PumpCalcs through a link on the home page of the P&S website, www.pump-zone.com. There visitors will find a variety of basic and expert calculators for applications involving centrifugal pumps; positive displacement pumps; vibration; electrical; pressure, head, and flow; pump design; and vibration. The site also features a unit converter and financial calculators to compute future value and payback time.
Robert Perez, P&S Contributing Editor and PumpCalcs.com website editor, describes one way to use the site: “Pumps & Systems’ new website PumpCalcs.com offers users an Expert Calculator that takes typical pump specifications and provides key hydraulic parameters that are useful in the pump selection process. By simply inputting flow, pressures, rpm, specific gravity, number of stages, number of suction eyes, NPSHa, and desired NPSH margin, the Expert Calculator provides the specific speed (Ns) and suction specific speed (Nss) for an ideal pump.”
These calculators ultimately allow users to be the Pump Designer. “This pump analysis calculator enlightens and encourages users to better understand their pumps and select their pumps for the right reason,” notes Perez. “By thinking like a pump designer, they are better equipped to develop improved pump specification and talk to their pump suppliers with the goal of more accurate pump selection.”
Source and more info: emediawire
In 1971, engineers at Holland-based Bredel (now Watson-Marlow Bredel Pumps, the world leader in peristaltic pumps) were busy developing a machine to spray a cement mixture. When the time came to put a positive displacement pump in the new device to move the concrete, company engineers were underwhelmed by the choices in the marketplace. Consequently, the decision was made to internally create a brand new pump�one that could effectively pump the concrete through the machine and also tolerate the material�s abrasive properties. This revolutionary cement pump worked so well, it spawned new research and development at Bredel that ultimately yielded longer hose life, broader flow ranges, and greater chemical compatibility. It was not long before the hose pump transformed from a purpose-built cement pump into the technology it is today�a worldwide solution for pump users looking to increase productivity and minimize their life cycle costs when moving abrasive fluids.
When it comes to handling abrasive materials, hose pumps deliver a significant advantage from both a performance and financial perspective. Before we consider the issues inhe
Source and more info: publicworks
Amarinth has designed and commissioned an innovative pumping solution for Polimeri Europa which prevents the frequent clogging inherent in the existing centrifugal pumps used to move latex agglomerate around the plant. The new pumps have increased reliability by a factor of 15, delivering a return on investment in just nine months. Polimeri Europa is one of the major world producers of elastomers at their plants in Hythe and Grangemouth, United Kingdom.
Using a range of proprietary technologies and state-of-the-art production systems, the company produces basic chemicals, polyethylene, elastomers and styrenics for many of the world’s leading brands.
For years, the latex agglomerate used during production had tended to clog and accumulate behind the impellers of the existing centrifugal pumps.
This overloaded the pumps causing gland leakage.
Despite a regular maintenance schedule of stripping, cleaning and rebuilding the pumps and re-packing the glands, seizures would still occur each week, sometimes resulting in the failure of a shaft or bearings.
The consequence was unplanned downtime and disruption to critical stages of the production process.
Source and more info: processingtalk
