Search Results for: control valve
- Valves
Pressure – Reducing valves and its Applications
Pressure reducing valve is a type of pressure control valve. This type of valve is used to maintain constant reduced…
Read More » - Valves
Pressure Relief valves
Overview: The Relief valves are safety valves prevent equipment damage by relieving accidental over-pressurization of fluid systems. The relief valves…
Read More » - Instrumentation
What are pneumatic controllers ?
Introduction A controller is a device that senses differences between a desired condition and measured condition in a process. .The…
Read More » - Valves
what are pressure relief valves?
INTRODUCTION Protection against over pressure is one of the most important design tasks in the chemical, petrochemical, oil, and gas…
Read More » - Control System
what is cascade control?
A simple control system drawn in block diagram form looks like this: Information from the measuring device (e.g. transmitter)…
Read More » - Valves
Basics of Butterfly valves
The butterfly valve is a rotary control valve. Standard butterfly valves are dampers that are shaped from discs which rotate in…
Read More » - Instrumentation
BASICS OF ON/OFF CONTROLLER
Introduction In control theory, an on/off controller, also known as a hysteresis controller, is a feedback controller that switches abruptly…
Read More » - Control Valve
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…
Read More » - Valves
Globe valve, types of globe valve
Globe valve is widely used by sliding stem valve or linear motion valve used to regulate flow in a pipeline.…
Read More » - Control System
Different components of a control loop
What is control loop? A Control loop is the fundamental building block of the industrial control system or industrial automation.…
Read More »