A control valve is a type of valve used to regulate the flow rate, pressure, temperature, or liquid level in a piping system by varying the size of the flow passage. Unlike simple on/off valves (like gate or ball valves), a control valve works automatically it receives a signal from a controller and adjusts its opening to maintain the desired process condition.

Main Parts of Control Valve

01.

Valve Body

The casing that holds the internal parts.

02.

Actuator

The device that moves the valve plug/disc (can be pneumatic, hydraulic, or electric).

03.

Positioner

Ensures the valve opens to the exact position according to the control signal.

04.

Plug/Disc

Controls the flow by moving up/down or rotating.

Types of Control Valves (Based on Motion)

1. Linear Motion Control Valves

Globe Valve (most common for control).
Diaphragm Valve.
Pinch Valve.

2. Rotary Motion Control Valves

Butterfly Valve.
Ball Valve.
Plug Valve.

Functions of a Control Valve

Maintain flow rate.
Control system pressure.
Regulate temperature (by controlling steam/water flow).
Maintain liquid level in tanks.

Examples of Use

In a boiler system, a control valve regulates steam flow to maintain pressure.
In a chemical plant, it controls acid flow into a reactor.
In water treatment, it regulates chlorine dosing.

Summary

A control valve is the “muscle” of an automatic control system, it adjusts flow based on signals from a controller to keep process variables (pressure, flow, temperature, level) at their set values.

Products

Pipe

A pipe is a tubular section or hollow cylinder, usually made from metals, plastics, concrete, or ceramics, that is used primarily to convey substances such as liquids, gases, or sometimes solid particles in slurry form. Pipes are essential components in water supply systems, oil and gas industries, chemical plants, HVAC systems, and domestic plumbing.

Pipe Fittings

Pipe fittings are components used to connect, control, or terminate the flow in piping systems. They allow pipes to change direction, branch off, increase/decrease in size, or connect different materials.
They are made from materials such as steel, copper, brass, PVC, CPVC, HDPE, and cast iron, depending on the application (plumbing, oil & gas, irrigation, HVAC, etc.).

Flanges

A flange is a mechanical device used to connect pipes, valves, pumps, and other equipment in a piping system. It provides strength, easy assembly/disassembly, and access for inspection, cleaning, or modification. Flanges are usually joined by bolting and sealed with a gasket.

Valves

Valves are mechanical devices used in piping systems to start, stop, regulate, or direct the flow of fluids (liquid, gas, or slurry).

Control Valves

A control valve is a type of valve used to regulate the flow rate, pressure, temperature, or liquid level in a piping system by varying the size of the flow passage. Unlike simple on/off valves (like gate or ball valves), a control valve works automatically it receives a signal from a controller and adjusts its opening to maintain the desired process condition.

Packing Material

Packing material is a sealing element used inside valves, pumps, and piping equipment to prevent fluid leakage along the moving parts (such as valve stems or pump shafts). It fills the space between the valve stem/shaft and the bonnet or stuffing box to form a tight seal, while still allowing movement.

Structure Material

A structural material is any material that is used to bear loads, provide strength, and ensure stability in structures like buildings, bridges, machines, pipelines, ships, and vehicles. The choice of material depends on strength, durability, weight, corrosion resistance, cost, and environmental factors.

Gauges

A gauge is an instrument used to measure, indicate, or compare a physical quantity such as pressure, level, thickness, or diameter.
In engineering and manufacturing, gauges help ensure accuracy, safety, and quality control.

Contact us

HTML Website Creator