The 187 Series and 281 Series high-pressure directional-flow controls provide restricted flow in one direction and free flow in the other.

1. Flow-to-open cutaway. Control valves equipped with noise-abatement trim, such as a drilled-hole cage or a tortuous path stack, are typically oriented in the flow-to-open direction.

Mechanical SPDT or solid-state relays for alarm indication or control of valves or pumps are ... bidirectional sensing while the 4 to 20-mA output is settable for single or bidirectional flow.

Alicat has launched the MCD Series bidirectional mass flow controllers that control flows into a process in one direction and then change directions. They also control flows into a closed process and ...