Profile: Clark offers products for measuring, monitoring and control. Our product offerings are divided into three areas such as pumps, valves and instrumentation. Our liquid pumps are available in diaphragm, piston-solenoid operated, air operated diaphragm, peristaltic, rotary vane/impeller, centrifugal and gear pumps. We offer a range of small to mid-size pump products and a broad range of liquid & gas application valves. Our valve products range from specialized subminiature inert isolation valves to 20″ motorized butterfly valves. Many of our valve products are available in special materials for demanding applications. Our instrumentation line extends from bench top and handheld data loggers that can be connected to virtually any sensor, to measurement devices for flow, pressure, temperature, level, velocity & other properties. Our valves are available in solenoid inert isolation, solenoid pinch, general purpose solenoid, manual & motorized pinch, pneumatic actuated inert isolation, manually operated ball, needle, electric motor actuated ball, globe and butterfly valves.