NORTH KINGSTOWN, R.I., September 25, 2018-- Clarke Valve today completed the sale of $5.5 million of Series B Preferred Stock to a group of investors led by OGCI Climate Investments. Along with funding from Saudi Aramco Energy Ventures and Chevron Technology Ventures, Clarke has now raised $15.5 million of Series B funding. Clarke’s patented Shutter Valves are typically 1/5th the weight, 1/5th the size and 1/5th the cost of equivalent legacy valves, providing substantial benefits to users of industrial control valves in many industries.