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. Our model Exakn isolation valves are very small in size with negligible internal volume. The valves incorporate a perfluoroelastomer soft valve seat which is resistant to damage caused by foreign particle matter. These are ideal for automated chemistry applications, where the goal is to minimize reagent & sample waste. Our model series WTA inert isolation valves offer great performance and a choice of wetted materials for compatibility with aggressive media. The WTA series is of a two way, normally closed configuration. Model WTA-2R have molded PPS bodies and model WTA-2K have molded peek bodies. The valves have PTFE isolation diaphragms and a Perfluor/Viton soft valve seat seal.