Valve Positioners For Pneumatic Actuators

August 2, 2010 by  
Filed under Actuators, Equipment, Positioning sensors, Valves

valve positionerSpirax Sarco’s EP5 and PP5 control valve positioners operate on the balanced forced principle providing a tested solution for accurate control valve positioning. Both types are simple to commission and maintain with a low air consumption and 0,2 to 1,0 bar and 4-20 mA input signal options.
The positioners are used with linear pneumatic actuators; comparing the output signal from a pneumatic controller (or transducer) with the valve position feedback, and varying the pneumatic output signal to the actuator accordingly. The valve position is, therefore, guaranteed for any controller output signal and the effects of varying valve differential pressure, stem friction and diaphragm hysteresis are overcome. The positioners can also be used where the controller output signals are of too low a magnitude to be used directly with high pressure actuators. A mounting kit is supplied for fitment to either columns or yoke in accordance with NAMUR standard. Safety covers are also provided.
The positioners can be used with Spirax Sarco’s actuator types PN9000 and TN2000 series, if required an intrinsically safe version is available.
www.spiraxsarco.com

North American Pneumatic Actuators Markets Report Released

February 9, 2010 by  
Filed under Actuators, Equipment, Industry News

Research and Markets has announced the addition of Frost & Sullivan’s new report “North American Pneumatic Actuators Markets” to their offering.

This report titled North American Pneumatic Actuators Market provides the market dynamics of complete pneumatic product segment such as NFPA, non-repairable, mini/compact, rodless, rotary, slide, ISO VDMA type of actuators. In this research, Frost & Sullivan’s expert analysts thoroughly examine end-user analysis and distribution trends.

End-Users Prefer Innovation in Technology and Differentiation in Product Offering in the North American Actuators Market

With end-users cutting back on investments due to the economic slump, and demanding newer technologies and more product differentiation, participants in the North American actuators market are finding the going tough. The economy is expected to look up by the second quarter of 2010; till then, actuator manufacturers are focusing on high demand sectors such as food, packaging, and material handling to sustain growth. “While most end user segments are witnessing negative growth, manufacturers are targeting niche segments where demand is growing,” says the report. “Acceptance of standardized actuators such as National Fluid Power Association (NFPA) and ISO (International Standards Organization) and VDMA (Verband Deutscher Maschinen- und Anlagenbau) by end-user segments such as automotive has also helped in continuous production and revenue generation for the actuators market.”

Nonetheless, the economic crisis has resulted in a decline in pneumatic actuators sales for most manufacturers, and is compelling them to examine other market opportunities globally. Increased revenues are anticipated in the North American pneumatic actuators market as many companies continue to form alliances with overseas market participants to expand their customer base and provide more complete product lines. The unrelenting rise in the prices of raw materials has also facilitated the increase in product prices and hence revenues for the pneumatic actuators market, especially for NFPA products that find application in the food and packaging industries.

The growth of the pneumatic actuators market is aligned with the recovery of the U.S. economy. The development of value-added packages will attract potential clients toward manufacturers who have the capacity to offer complete solutions to end-users,” concludes the analyst. “The incorporation of control valves into sale of actuators is an example of this strategy in action.”

www.researchandmarkets.com