Скачать или смотреть II Water supply Pressure valve maintenance work in water plant II

In water supply systems, a delivery valve plays an important role. Let me explain simply:
🔹 What is a Delivery Valve?
A delivery valve is a type of valve fitted on the delivery side of a pump or pipeline. It controls the flow of water from the pump into the delivery pipe or distribution network.
🔹 Purposes & Uses of Delivery Valve:
Flow Control
Regulates the amount of water flowing from the pump into the supply line.
Prevents sudden surges in flow.
Pressure Regulation
Maintains required pressure in the distribution system.
Helps avoid over-pressurization of pipes.
Pump Protection
Prevents backflow of water into the pump when it is stopped.
Avoids damage to pump impellers and internal parts.
Operational Safety
Allows safe starting and stopping of pumps.
The valve is usually kept closed while starting the pump and then gradually opened to avoid water hammer.
Isolation for Maintenance
The valve can be closed during servicing or repairing the pump, so water does not flow back.
🔹 Where it is Used?
Water supply schemes (municipal pipelines, overhead tanks, treatment plants).
Irrigation systems (to control delivery from pumps).
Industrial water pumping stations.
✅ In short:
The delivery valve is mainly used to control, regulate, and isolate the water flow from the pump to the supply line, and to protect the pump and system from backflow and pressure damage.
Would you like me to also show you with a simple diagram (pump + suction + delivery line + valve) so it’s easy to visualize?