Beswick Engineering released an ultra-miniature pressure compensated flow control valve with low friction diaphragm. The PCFCD-1N1 is designed to maintain a constant flow rate, which the customer can adjust regardless of upstream or downstream pressure variations. It works with both liquids (incompressible fluids) and gasses (compressible fluids) but is primarily intended for the control of liquids. The pressure is regulated with a low friction diaphragm mechanism. According to the company's press release, this valve is undergoing the patent process. Additional features include weight of 48 grams. The PCFCD-1N1 controls flow rates of 0 to 4.2 gallons per hour of water. It is best 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 is both small and lightweight allowing for convenient in-line mounting without the need for a panel mount thread. The PCFCD-1N1 is currently available in brass. Buna-N is the standard seal material. Fluorocarbon (Vitonâ) is optional.