Self-regulated valve flow control
The final control elements perform their functions according to the commands of this control room. A self-regulated valve adjust the flow using the fluid flow...
Category : control valve
Control valve characteristics
Valve vary the flow of fluid through it by means of the change of pressure to the valve top. The relation between valve stem position...
How to select a control valve Actuator ?
In this session we are gonna discuss about how to select a control valve actuators and we will briefly talk about it’s criteria What is...
Different types of control valve actuators
Introduction Pneumatically operated control valve actuators are the most popular in use, but electric, hydraulic and manual Actuators are also widely used. The pneumatic spring...
Basic parts of control valves
Introduction in this session we are gonna discuss about the parts of control valves DIAPHRAGM CASE Use to enclose the diaphragm to form a pressure...
Basics of Check valves
Working: Check valves are designed to prevent the reversal of flow in a piping system. These valves are activated by the flowing material in the...
Basics of Needle valves
Small sizes of globe valves fitted with a finely tapered plug are known as needle valves. Needle valves are used to control the flow precisely. Needle...
Control Valve positioners
A valve positioner is a final control device used to position the valve actuators correctly at the control position. In applying a force to an actuator,...
VALVE STEM PACKING REPLACEMENT METHOD
VALVE STEM PACKING The purpose of valve packing is to prevent leakage. In a typical valve, the gland follower is tightened until there is no...
Working of control valve
Introduction The control valve is a controlled device that regulates the flow of a liquid or gas in a system. This regulation is accomplished by...