Water Transmission Systems

The primary function of valves in water transmission systems is to regulate, direct, and control the flow of water. They allow operators to start or stop the flow, adjust its rate, and isolate sections of the system for maintenance or emergency purposes. Additionally, valves help maintain the desired pressure within the pipelines, preventing damage and leaks.

Materials and Durability

Valves used in water transmission systems are typically made from robust materials such as cast iron, ductile iron, cast steel, or stainless steel. The choice of material depends on factors like water quality, pressure, and environmental conditions. Proper selection and regular maintenance of valves are vital to ensure their longevity and reliable operation.

Installation and Maintenance

Correct installation is essential to the effective functioning of valves. This includes ensuring proper alignment, secure sealing, and adequate support within the pipeline. Regular inspection and maintenance help to identify wear, corrosion, or blockages, reducing the risk of failure and costly repairs.

Types of Valves Used

Gate valves

Commonly used for on/off control, gate valves provide a straight-through passage for water, minimizing pressure loss when fully open.

Needle Valve (Axial Flow Control Valves/Plunger Valves)

Needle valves are specialized flow control valves designed to provide precise regulation of water flow and pressure.

Butterfly Valves

These are lightweight and compact, ideal for regulating flow and isolating sections in large diameter pipelines.

Ball and Spherical Valves

Known for their reliability and tight sealing, ball valves are suitable for quick shut-off applications

Check Valves/ Non return valves

These valves prevent backflow, ensuring water moves in only one direction, which is essential in maintaining system integrity.

Air valves

Installed at high points in the system to release trapped air, which can reduce efficiency and cause water hammer.