Product category:
Valves and manifolds
News Release from: ASCO Joucomatic | Subject: SENTRONIC D
Edited by the Processingtalk Editorial
Team on 17 March 2006
Pulstronic valve with steady flow
pressure control
Pulstronic is a proportional valve designed to provide precise and cost effective proportional pressure control for applications requiring a constant flow
The Asco Joucomatic Pulstronic proportional valve is designed for pressure control applications requiring a constant flow: these include turbine speed control, glue and lacquer dosing, pressure control of welding equipment, and flow control over nozzles Pulstronic is a self-contained, electro-pneumatic proportional valve with an integrated control loop that provides precise regulation of pressure
This article was originally published on Processingtalk on 16 Mar 2006 at 8.00am (UK)
Related stories
ASCO Process Scope at ACHEMA
Visit the ASCO stand at ACHEMA to find out about ASCO Process Scope, the most complete source of specialist solenoid valve information for instrumentation engineers working in the process industry
Correct valve sizing in process applications
A discussion on the correct sizing of valves in process industry operations, which is essential for precision, quality and safety: oversizing is as bad in its effects as undersizing!
Designed for operation on normal filtered air (50 micron), Pulstronic employs the innovative Asco Joucomatic poppet technology - proven on the market leading Sentronic proportional valve - to provide good rates of response with minimum hysteresis (< 1% of maximum output pressure (PMR)), when increasing or decreasing pressure.
In addition, repeatability is excellent at 0.5% of PMR (10bar).
The IP65 rated Pulstronic is available in four versions: the DN4 with G1/8 ports, the DN7 with G1/4, the DN12 with G1/2 and the DN05 with instant fittings to accept 4mm flexible hose.
Further reading
Solenoid valves for hazardous environments
The new, TUV certified (IEC 61508) 327 series of poppet valves satisfies the requirements for the highest levels of operating safety SIL-4/AK-7 in explosive and hazardous environments
The greater the risk, the higher the SIL
Steve Meadows of Asco Joucomatic explains the function of Safety Integrity Levels in the new draft IEC61511 standard for the process industry sector
The latter version is particularly adapted for piloting pneumatically operated valves or boosters.
All the valves operate with analogue set points of 0-10v, 0-20mA or 4 - 20mA, and offer operational security in the form of a "pressure held at power failure function".
Typical applications where the Pulstronic provides an optimised control solution include: Compensation of thickness on pinch rollers, Spot Welding, Turbo-supercharging and Materials Testing.
In pinch roller applications, Pulstronic controls the pressure acting against the top roller (in a series of two), ensuring that the thickness of the processed material remains constant.
Similarly, in spot welding the Pulstronic valve controls the pinching force of the welding head depending on the material to be welded and its thickness.
In turbo and supercharging applications the Pulstronic adjusts exhaust gas flow to the turbo-supercharger, depending on the engine speed, to maintain the charging pressure at a constant level.
Finally, in material testing the Pulstronic continuously increases the force acting against a test piece until the latter is destroyed.
Further information regarding the Pulstronic, Sentronic D, Piezotronic and the Asco Joucomatic complete range of proportional valve products is contained within a new 25-page catalogue produced by the company.
The publication provides all relevant information regarding proportional technology and devotes four pages to application examples, each with its own accompanying graphic.
Free copies of the catalogue are available from the Asco Joucomatic marketing department. Request a free brochure from ASCO Joucomatic ...
• ASCO Joucomatic: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
