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Proportional Valves use frictionless flat-spring armature.

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Proportional Valves use frictionless flat-spring armature.
Proportional Valves use frictionless flat-spring armature.
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April 15, 2014 - Capable of 0-24 lpm flow at 2.3 W max power consumption, ProControl PC3 Proportional Valves are available inline or manifold mount, with control voltages of 0–10 or 0–20 V, and max pressure ratings of 25, 50, or 100 psig. Miniature, direct-acting, 2-port valves control output flow by varying internal orifice with amount of input current applied to solenoid. Tested to 100 million cycles, valves are suited for analytical instrumentation, test/measurement, medical devices, and process control.

New Proportional Valve Series Offers Fast Responsiveness and Low Hysteresis

Humphrey Products
Kilgore at Sprinkle, P.O. Box 2008
Kalamazoo, MI, 49003

Press release date: April 11, 2014

Introducing the PC3 Proportional Valve and the kick-off of the Humphrey ProControl brand of proportionally controlled products. ProControl Proportional Valves are uniquely designed using a frictionless flat-spring armature design that results in long, trouble-free and excellent flow characteristics.

Proportional valves precisely control output flow by varying the internal orifice with the amount of input current applied to the solenoid. The miniature direct-acting PC3 Valve has been tested to 100 million cycles featuring fast response, quiet operation, low hysteresis, and consistent flow “gain” throughout its range. It is an ideal choice for specialty applications in high tech market segments such as analytical instrumentation, testing and measurement, medical devices, process control, and also within factory automation as a dynamic pressure or speed controller for air cylinders and actuators.

The PC3 is a 10-32 threaded, 2-port proportional valve capable of 0-24 LPM flow at 2.3 watt maximum power consumption. It is available inline or manifold mount, with control voltages of 0-10V or 0-20V, and in maximum pressure ratings of 100, 50 and 25 PSIG. All PC3 valves are RoHS and REACH compliant.

For more information on the ProControl PC3 Proportional Valve, please visit
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