BERMAD Irrigation Blog

What are Flow Control Valves?

Flow control valves are designed to maintain a constant pre-set maximum flow regardless of fluctuating demand or varying system pressure. Flow limiting is required at the outlets from main systems to consumers like secondary systems (main line to hydrant line; hydrant line to distribution line), reservoirs, etc. in order to protect the supplying system from over consumption.

An internal control valve, also known as a tubeless valve, is commonly used as an on/off valve in residential landscaping and turfs applications.

The use of internal control valves is less common in commercial irrigation but can be found quite often in greenhouse applications as they allow operational flexibility (N.O. valve and N.C. valve). Internal control valves can be also found installed in the in-field headworks of some agricultural communities around the world.