Dave Wilson, Editor, writes:
We see from your search that you're looking for information on the term "Proportional Valve",
and we have a large number of manufacturers' news releases and technical articles here on Engineeringtalk which will be of interest.
Let me be your guide.
Start with
the news release Valve handles demanding jobs from
Moog Controls, which we summarised at the time by saying "The combination of permanent magnets and electromagnetic coils results in spool driving forces considerably larger than those that can be obtained by solenoid coils alone".
A few weeks before,
we featured the news release Valve line provides a range of options from
Enfield Technologies: "Enfield Technologies' C series valves are designed to meet the needs of virtually any industrial application".
In September 2006, we covered the news from Flowserve
concerning its Logix 3400IQ
- take a look at Valve positioner comes under fieldbus control
which says: "The Flowserve Logix 3400IQ Foundation Fieldbus digital valve positioner provides operating versatility and fast, easy and accurate calibration".
Take a look also at the news release from Asco Joucomatic Numatics, Specialist valves enable instrumentation advances,
as well as Electroactive polymers muscle into motion market from Artificial Muscle,
and Medical valves covered in catalogue from Asco Joucomatic Numatics.
See also:
Proportional valve comes in four versions
(March 2006)
Self-contained, electro-pneumatic proportional valve with an integrated control loop that provides precise regulation of pressure is for operation on normal filtered air
Proportional valve handles higher pressures
(January 2006)
Norgren has extended the input pressure range of its VP60 proportional valve
Catalogue details wide range of valve products
(November 2005)
Asco Scientific has produced a new catalogue covering its comprehensive range of specialist miniature solenoid and pneumatic valve products for use in medical, biomedical and analytical applications
Manifold makes the most of miniature valves
(July 2005)
Norgren has introduced a new manifold for use with its Watson Smith series of VP12 miniature proportional valves
Proportional control valve won't compromise
(March 2005)
With over 20 years experience in proportional technology Norgren has optimised the design of the new VP12 to provide for the accurate control of pressure in a cost effective package
Control by wire technology comes down to earth
(January 2005)
Anders Trygg discusses the considerations of off-highway design through a range of case studies
Cartridge valves find their niche
(December 2004)
With 35 years of history in the field, cartridge valves have a proven role in hydraulic applications
High flow for direct-drive proportional valve
(September 2004)
The new D634-P direct drive proportional valve fills the gap of a high-flow direct drive valve for high-speed movements
All-new option for cylinder position sensing
(July 2004)
The ProSet4, the newest member of Balluff's Micropulse family of rod-style cylinder transducers, offers an entirely new option for cylinder position sensing
Electropneumatic proportional valves explained
(June 2004)
Asco Joucomatic has produced a new publication dealing with all aspects of electropneumatic proportional valve control, including the latest fuzzy logic and piezo technologies
Proportional valves reach new levels of control
(April 2004)
The latest developments in fuzzy logic and piezo technology are consolidating and expanding the role of electropneumatic proportional valves in all areas of industry and medical technology
PLC takes on Hydraulic control
(March 2004)
The 1756-HYD02 is a two-axis hydraulic module for the ControlLogix platform
Easy interfacing for digital proportional valve
(November 2003)
The ability to maximise continuous automated production processes in all sectors of industry is provided by the new digital Sentronic D proportional valve
Valves on the right track for SNCF locos
(July 2003)
Amot Controls temperature control valves have been chosen for fitting to a series of SNCF trains on the French railway in the first phase of a project with an option for further locomotives
News on the Piezotronic proportional valve from Asco Joucomatic Numatics
(May 2003)
The Piezotronic proportional valve is ideal for medical and analytical applications where it is imperative that no heat transfer takes place from the valve to the fluid
Valves gain ATEX ceretification
(March 2003)
Moog has received ATEX certification for several of its top-selling explosionproof servo valves, servo-proportional valves and IS solenoids
Award for restoration work
(February 2003)
The restoration work carried out on the Anderton Boat Lift has been honoured in The Historic Bridge and Infrastructure Awards 2002
Fluid control solutions for analytical markets
(December 2002)
Asco Joucomatic has created a new division - Asco Scientific - specifically to provide fluid control solutions to the medical, biomedical and industrial analytical markets
Diverter valve switches high flows
(August 2002)
New from Sterling Hydraulics is the R04G3, a normally open two-way three-port vent-to-close diverter valve
Speedy performance from integrated linear actuator
(May 2002)
BEI Kimco Magnetics Division has released a fully enclosed linear voice coil assembly with internal bearings
Proportional valve has onboard control loop
(February 2002)
Pulstronic is a new pneumatic proportional valve from Asco Joucomatic, designed for applications requiring variable pressure regulation
Process Valve shortform complements main catalogue
(November 2001)
Asco Joucomatic's new, short form Process Valve catalogue is a single source for all process valve requirements, providing a quick and easy aid for selecting valves
New proportional valve for pressure control
(October 2001)
Norgren-Herion's new Model VP-22 Proportional Valve for pneumatic pressure control is a compact valve providing a variable pressure output in response to a 0-10 VDC or 4-20 mA analogue control signal
Proportional valve gets microprocessor treatment
(October 2001)
Watson Smith has combined microprocessor technology and the pneumatic expertise of Norgren into a completely digital, fully programmable, proportional valve
Proportional valves key to BMW's hydrogen car
(June 2001)
BMW's 750hL, the first series-built hydrogen car in the world, has the control valves required to regulate the inlet pressure of the hydrogen injection valves supplied by Asco Joucomatic
Remote controls offer 12 adjustable frequencies
(June 2001)
Scanreco is a range of radio remote control systems developed and manufactured utilising design innovations and microprocessor technology from within the Swedish telecommunications industry
World's first all-digital proportional valves
(April 2001)
Norgren is launching the world's first completely digital proportional valves, which allow the user, for the first time, to program the unit to exact specifications off-line
Hydraulic cylinder in NPL
(March 2000)
A single Parker HMI hydraulic tie-rod cylinder and proportional valve are at the heart of a computer-controlled thermal mechanical fatigue (TMF) test rig designed and built by NPL