Hydraulic actuated ball valves are similar to pneumatic actuators, only they use pressurized fluid instead of air or gas. The fluid—either water or oil—is fed to one or both sides of a piston ...

ISA recently published Fluid Mechanics of Control Valves: How Valves Control Your Process by Hans D. Baumann, Ph.D., PE — a world-renowned expert on control valve technology who is credited with more ...

A closer look at different types of pumps and compressors. Moving hydraulic fluid through a system requires either a pump or compressor. Both achieve this goal, but through different operating ...