Tamperproof Flow Limiter

The LIS-ID flow limiter is designed for use with irrigation water and is intended for installation in delivery units or hydrants. This limiter maintains a nominal flow rate (Qn) regardless of upstream pressure conditions and downstream demand. Its modulating design allows for precise flow control, reducing hydrodynamic losses and ensuring gradual and progressive regulation.

Operation:

The limiter maintains optimal hydrodynamic characteristics up to the nominal flow rate (Qn). When the flow exceeds this value, the modulating ring activates, creating a localized pressure loss that prevents the flow from exceeding 120% of Qn (1.20 Qn). This modulation process is gradual and progressive, avoiding water hammer and other hydraulic issues.

Applications:

The LIS-ID flow limiter is ideal for use in agricultural irrigation systems and water distribution networks, where consistent flow control is needed, and system protection from excessive pressures is required.