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| December 06, 2011 | Volume 07 Issue 45 |
Fluidpower News & Products
Designfax weekly eMagazine
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5 most important factors to consider for hydraulic fittings
OEMs and fitting manufacturers are constantly finding new ways to stump us with different threads and new ways to seal them. Generally, however, when making hydraulic fitting connection choices today, there are several features to research and understand for your application. Kyri McDonough from the Hose Products Division at Parker Hannifin runs through the connections, attachment styles, and the five most important factors you need to consider for hydraulic fittings.
Read the Parker blog.
Fluid power with a personal touch
Looking for hydraulic components? Cross Manufacturing offers you an extensive line of products – including welded and tie rod cylinders, directional, flow and pressure control valves, gear pumps and motors, filters, accumulators, gear boxes, adapters and manifolds – with an immediate responsiveness to your needs from the heartland of the United States. Over 59 years' experience and rigid quality control ensure top performance and the lowest price. Online literature may be requested by visiting the Cross product line.
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Mini pumps for air or gases
KNF diaphragm mini pumps and compressors are highly customized “built-to-suit” pump solutions benefiting OEMs. These mini pumps (N85-N815 Series) can reliably handle gases, take samples (even liquids in a vacuum), or evacuate vessels. They are typically used for analyzers, medical instruments, printers, and in other applications requiring high performance in a compact package. Depending on model, standard mini pumps can provide flow rates up to 20 l/m, achieve up to 27 in. hg vacuum levels with a single stage, and operate against pressures up to 35 psig.
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Convert your direct-acting solenoid valve to pneumatics
The PneuMagnetic actuator is a drop-in replacement for the OEM coil on an industrial direct-acting solenoid valve. This self-contained pneumatic-magnetic device provides the same powerful on/off magnetic field as the original coil. Valves converted to PneuMagnetic are operated by an inexpensive air pilot using a small-diameter, flexible pneumatic line. No electricity. No field wiring. No conduit. And no intrinsically safe IS barriers required.
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Retain load on hydraulic power or pump failure
The AMLOK Hydraulic Series RCH Rod Clamp has been developed to provide power-off clamping of rods and shafts. The type RCH Rod Clamps are actuated by a spring/collet mechanism and unclamped by hydraulic pressure. These rod clamps are designed to clamp components after the motion has stopped and to hold the position securely as long as the forces do not exceed the table values. For braking and pneumatic applications, contact the factory.
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Advanced Machine & Engineering
Heavy-duty air cylinders are back
Air Engineering and Supply will be manufacturing and distributing the popular and widely used double-acting 18D and 18SD models available in both stud and universal mounts. Both are 1.12-in. bore models and feature nitrile seals rated for 180°F and 150 psi max. Cylinders are hard-coated anodized aluminum with zinc-plated nuts and lock washers. The cylinders feature chrome-plated stainless steel rods with brass pistons and have black oxide-finished end covers. Designed with standard bumpers at both ends, the cylinders have low-friction U-cup seals with moly lubrication.
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Economical electric actuators
The EPZ Series of Industrial Electric Actuators is an economical solution for small-diameter ball valves and well suited for tight-space applications. The actuators are available in two sizes: the EPZ-6 and EPZ-15. The EPZ-6 has a torque output of 55 in.-lb/ 6 Nm, and the EPZ-15 features an output of 135 in.-lb/15 Nm. Both sizes are non-spring return with NEMA 4/4X enclosure, and have an ISO5211 F03/F05 mounting pattern. Other key features include: on/off jog control capabilities, aluminum alloy dry powder-coated housing, thermal-class F motor protection, and manual override including lock-out functionality. Typical applications or installations include but not limited to waste and water treatment, chemical processing, food and beverage, pharmaceutical, pulp and paper, irrigation/agriculture, marine or corrosive environments, aquatics, and water/theme parks.
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Latest “standards on CD” CD-ROM 3.0
Hydraulic Institute (HI) has introduced CD-ROM Version 3.0, its latest offering of ANSI/HI Standards presented in a CD format. An update of an earlier CD offering, the new release is “state of the art” complete and contains a full set of all 30 current standards on one convenient-to-use and easily portable CD-ROM. The cost is $1,100 and represents a savings of more than $1,700 over purchasing standards individually. Orders for the new CD are now being expedited via the HI eStore.
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More than 1,000 hydraulic macros
A new, comprehensive master data package for hydraulics now bridges the gap between fluid and mechanical design. More than 1,000 new hydraulic macros in Eplan Fluid software speed up and simplify interdisciplinary documentation. The advantages of a common set of control technology documentation for fluid and electrical engineering are well known; a look at hydraulics opens up even more potential. From the beginning, Eplan Fluid 2.0 offered users a comprehensive "fluid data package" containing more than 1,000 hydraulic macros. The combination of CAE functionality and the new macros provides unbeatable advantages for hydraulic designers, especially in mechanical engineering.
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Innovative pumps and compressors
Many new pumps and compressors have been added to the Thomas Global Catalog. This release features updated specification and performance data on hundreds of WOB-L, articulated piston, diaphragm, rotary, and linear oil-less air compressors/vacuum pumps. Liquid pump technologies include peristaltic, linear, and diaphragm. Detailed technology and model series selection guides assist users to quickly identify the optimal solution.
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Pneumatic actuator approaches zero friction
Airpel Plus is a line of high-performance, low-friction air cylinder actuators. The benefit engineers derive from these low-friction levels is an enhanced ability to control ultra-precise movements, including high speeds and extremely short travel distances with clean, long-life pneumatic devices. The inert qualities and tight tolerances of the glass and graphite materials used in these actuators allow engineers to develop systems that will move, hold, or press accurately and with amazing repeatability.
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Miniature pneumatic products catalog
A leader in miniature pneumatics, Clippard provides the scientific/medical industry a variety of products and solutions. The product range is illustrated in a color brochure featuring the most complete line of miniature fluid power products for the medical, pharmaceutical analytical, and dental fields. Some of the many products include electronic valves for oxygen-enriched environments, check and control valves, proportional valves, regulators, fittings, tubing, and more.
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Clippard Instrument Laboratory
Ultra-low pressure sensors
The LPSI/LPS2 Series offered by Servoflo Corporation consists of ultra-low differential pressure sensors measuring from 0.1 in. to 5 in. of water in various non-directional or bi-directional calibration ranges. Based on a MEMS thermo-anemometer, the LPSI/LPS2 Series infers differential pressure from a nano-liters per second gas flow through an integrated airflow channel. The on-chip circuitry provides analog amplification and temperature compensation to send an accurate linear output over a wide temperature range (±2.5% FS from 5°C to 55°C). The LSP1 comes in various ranges from 0.1 in. to 2 in. of water, while the LPS2 is available from ranges between 1 in. to 5 in. of water. Standard input voltage is 5 VDC, and a 3V model is also available.
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Maximize material throughput and increase production
piFLOWi is an easy-to-use vacuum conveying system that doesn’t compromise on technical performance. The piFLOWi design makes it possible to double the conveying capacity for many materials, compared to traditional conveyors. The full opening gives an instant discharge for vastly increased material throughput. Its design makes it very suitable for integration in general industrial applications. Like all other Piab conveying machines, piFLOWi is ATEX dust classified. The system uses COAX cartridges that are smaller, more efficient, and more reliable than conventional ejectors.
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Full-range expertise in turbomachinery and pump systems engineering
Concepts NREC is a leading worldwide organization providing turbomachinery design, engineering, manufacturing, and CAE/CAM software. The company helps customers design, manufacture, and test custom pumps, compressors, turbines, and turbochargers to meet required specifications, troubleshooting and resolving issues along the way. The company recently completed its Agile Engineering Design System (AEDS) software suite with the launch of its Pushbutton FEA software.
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TRW introduces innovative roof airbag technology for cars
TRW Automotive Holdings Corp. recently unveiled its new "bag-in-roof" airbag system that replaces passenger airbags typically mounted in the instrument panel. The company says the new airbag can help to mitigate passenger injuries and can allow for improved interior design aesthetics, ergonomics, and functionality while saving space in the instrument panel.
TRW has unveiled its new bag-in-roof system which deploys the front airbag from the roof. The innovation aims to offer vehicle manufacturers greater styling and packaging freedom for the instrument panel configuration. [Image: TRW Automotive Holdings Corp.]
Dirk Schultz, engineering director for TRW's Inflatable Restraint Systems, says: "Occupant safety systems are becoming increasingly versatile. With the increasing focus on reducing road fatalities, we need to develop new ways to enhance the protection of occupants – one area of focus is the design and configuration of airbags. TRW's new roof airbag system is a unique development, and studies have shown that such a technology provides enhanced styling flexibility for future vehicle interiors in combination with excellent restraint performance."
In addition, this new design concept enhances development efficiency by eliminating the need to package a passenger airbag in the instrument panel, TRW's bag-in-roof design can significantly reduce the development costs of the dashboard, as there is no need to develop a specific "door" that opens with the airbag deployment. It is also functionally compatible with a wide range of vehicle architectures.
The airbag unit comprises a cushion and a gas generator that supplies the gas to the cushion in the event of an impact. The product offers easy assembly with opportunities for standardization, as some of the components are common to all applications.
TRW has undertaken pre-development work for the bag-in-roof technology for several years, and over the previous two years in close collaboration with a major European vehicle manufacturer. This has resulted in the award of a significant production contract with the vehicle manufacturer.
Source: TRW
Published December 2011
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