Electro Pneumatic Valve Positioner Schematic & Principle
Electro Pneumatic valve Positioner is used to control the valve stem position from open to close position or vice versa.
Control Valves
Get the Control Valve Study Material & training on all types of valves used in industries which include ball, butterfly, globe, gate, Diaphragm, etc.
Classification of Control Valves
Classification of Control Valves : Globe Valve, Gate Valve, Butterfly Valve, Check Valve, Ball Valve, Disk Valve, Diaphragm Valve, Linear
Types of Check Valves
Check valve is used to stop back flow in a piping system. This is also called Non return Valve (NRV).
Applications of Needle Valves
A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only
What is Shutdown Valve?
A shutdown valve (also referred to as SDV or Emergency Shutdown Valve, ESV, ESD, or ESDV) is an actuated valve
Valve Position Indication
Operators require indication of the position of certain valves to permit knowledgeable operation of the plant. For such valves, remote
Speed of Actuators
Plant safety considerations dictate valve speeds for certain safety-related valves. Where a system must be very quickly isolated or opened,
Solenoid Actuated Valves
Solenoid actuated valves provide for automatic open-close valve positioning as illustrated in Figure. Most solenoid actuated valves also have a
Self-Actuated Valves, Pneumatic & Hydraulic Actuators
Pneumatic actuators as illustrated in Figure, provide for automatic or semiautomatic valve operation. These actuators translate an air signal into
What is Motor Actuator ?
Electric motors permit manual, semi-automatic, and automatic operation of the valve. Motors are used mostly for open-close functions, although they
