They come in a range of sizes with diameters, from huge to the tiny quarter-inch valves used for drip irrigation systems. The 64-inch CIRCOR valve, controlling water flow from the Ras Azawr ...

The standard will define the basic hydraulic actuator types (i.e., linear or rotary ... guidance related to using partial stroke testing of block valve actuators in safety instrumented system (SIS) ...

“However, if you compare it to a normal double acting cylinder drive, this actuator is comprised of a mechanical cylinder and a number of electronically controlled valves and ECU (electronic ...

East Midlands-based WilSon Energy, a leading provider of fully integrated heating, metering, pre-payment and billing & bureau ...