Speed of Actuators
Plant safety considerations dictate valve speeds for certain safety-related valves. Where a system must be very quickly isolated or opened,
Plant safety considerations dictate valve speeds for certain safety-related valves. Where a system must be very quickly isolated or opened,
Solenoid actuated valves provide for automatic open-close valve positioning as illustrated in Figure. Most solenoid actuated valves also have a
Pneumatic actuators as illustrated in Figure, provide for automatic or semiautomatic valve operation. These actuators translate an air signal into
Electric motors permit manual, semi-automatic, and automatic operation of the valve. Motors are used mostly for open-close functions, although they
Valve actuators are selected based upon a number of factors including torque necessary to operate the valve and the need
A needle valve is used to make relatively fine adjustments in the amount of fluid flow. The distinguishing characteristic of a
Both flow valves,Globe valve and gate valve have similar external housing but operational functions of both differ little. The main
The relatively inexpensive pinch valve is the simplest in any valve design. It is simply an industrial version of the
Relief Valve and safety valve prevent equipment damage by relieving accidental over-pressurization of fluid systems. Compare Relief Valve and Safety Valve
Check valves are designed to prevent the reversal of flow in a piping system. These valves are activated by the