Profile: Porter Instrument Co., Inc. provides industrial flow and pressure control products. We are specialized in analytical, dental, industrial, and medical instrumentation. We concentrate on the design and manufacture of precision instruments for the measurement and control of low flow gases and liquids. We are specialized in designing and making modifications to this standard line to meet the specific design requirements of original equipment manufacturers. Our flow controllers feature less than two second response time, and are available in numerous configurations & flow rates to satisfy a variety of demanding flow control applications. In our manifold system, the easily removable cover conceals a single handle which shuts off gases downstream of valve.