Beswick Engineering (Greenland, NH) has released the PCFCD-1N1, an ultra-miniature pressure-compensated flow control valve with low-friction diaphragm. The device is designed to maintain a constant flow rate, which the customer can adjust, regardless of upstream or downstream pressure variations. It works with incompressible fluids and gasses, but is primarily intended for the control of liquids. The pressure regulation is accomplished with a low-friction diaphragm mechanism.
The PCFCD-1N1 weighs 48 g and controls flow rates of 0 to 4.2 gallons per hour of water or 0 to 20 cubic feet/hour of air. It is suited for the control of low flow rates. The maximum rated inlet supply pressure is 500 psig. Both the inlet and outlet ports are tapped 10-32. The valve body allows for in-line mounting without the need for a panel-mount thread. The device is available in brass, sealed in a Buna-N material. A fluorocarbon sealing is optional.
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