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Low cost proportional pressure regulator sets new paradigm for pneumatic control

Low cost proportional pressure regulator sets new paradigm for pneumatic control
Festo has launched an innovative proportional pressure regulator that is set to redefine cost-performance expectations in pneumatic control. The new VPPM proportional pressure regulator combines industry-leading performance with unsurpassed control flexibility, yet costs just £300 in one-off quantities - less than any competitive product on the market today, says the company. The regulator provides design engineers with an exceptionally easy and precise means of varying the flow rate to pneumatic actuators, facilitating accurate control of speed, force, pressure and torque.

Proportional pressure regulators are used extensively in the process industries, for diverse applications. Typically these include controlling the contact force in polishing and friction welding, controlling web tension, providing active load cushioning and weight compensation, controlling the speed of pneumatic motors, and regulating the applied torque of pneumatic wrenches. The regulators are also now beginning to be used in the leisure and medical engineering industries.

There are two versions of VPPM regulator; one is equipped with an LED display, the other with a backlit LCD. Both versions feature an 1/8 inch proportional pressure valve, offer a choice of G1/8 or PRS manifold connection, and are available with a pressure range of 0-2 bar, 0-6 bar or 0-10 bar. The 0-10 bar model accommodates a flow rate of up to 1400 l/min. By employing an innovative cascaded dual-stage regulator design - each with its own pressure sensor - the VPPM provides an exceptional level of control, with coarse and fine adjustment facilities. The use of two pressure sensors also helps eliminate drifting due to temperature fluctuations - regulation is held to just +/-0.04 percent/degK, which is unprecedented in this type of product.
 

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