Low Flow Valves

Control Zone Components

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Valves designed exclusively for the low flow rates of a drip irrigation system (0.2 - 8.0 gpm; 0.6 to 30 l/m).

The only valves in the industry made specifically for drip irrigation systems, making these the only valves that can effectively handle particles at low flow rates – patented design.

These valves contain all of the features of reliable Rain Bird DV valves, coupled with a unique diaphragm design that allows particles to pass through at extremely low flow rates, thereby preventing weeping of the valve.

Allows the filter to be safely placed downstream of the valve since these valves handle all sizes of particles.

  • Unique "double-knife" diaphragm coupled with 1/2" diameter seat for flawless operation at low flow rates.
  • Low Flow Valve is available in 3/4" and 1" in-line model.
  • Double-filtered pilot flow design for maximum reliability.
  • External bleed to manually flush the system of dirt and debris during installation and system start-up.
  • Internal bleed for spray-free manual operation.
  • Three-year trade warranty.


LFV-075
3/4" Low Flow DV Valve

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LFV-100 
1" Low Flow DV Valve*

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LFVDIAPHRM
Low Flow Valve Diaphragm Spare Part

 

*Available with BSP threads.

Operating Range

  • Flow: 0.20 to 8.0 gpm (0.6 to 30.0 l/m)
  • Pressure: 15 to 150 psi (1.0 to 10.3 bars)

Electrical Specifications

  • 24 VAC 50/60 Hz (cycles/sec) solenoid
  • Inrush current: 0.30 (7.2 VA) at 60 Hz
  • Holding current: 0.19 A (4.56 VA)
Pressure Loss Characteristics
Flow (gpm) LFV-075 (psi) LFV-100 (psi) ASV-LF-075 (psi)
0.2 3.0 3.0 2.5
1.0 3.2 3.2 3.1
2.0 3.3 3.3 3.7
4.0 3.6 3.6 4.6
6.0 4.2 4.2 5.3
8.0 5.1 5.1 5.7

Metric

Pressure Loss Characteristics
Flow (l/m) LFV-075 (bar) LFV-100 (bar) ASV-LF-075 (bar)
0.6 0.21 0.21 0.17
3.6 0.22 0.22 0.22
7.8 0.23 0.23 0.27
15.0 0.25 0.25 0.31
22.8 0.28 0.28 0.35
30.0 0.35 0.35 0.39