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Low Flow Valve
Control Zone Components

The only valve in the industry made especially for drip irrigation systems. This valve contains all of the features of Rain Bird’s reliable DV or ASVF valve, coupled with a unique diaphragm design that allows particles to pass through at extremely low flow rates, thereby preventing weeping of the valve.

Features & Specifications

  • Unique “double-knife” diaphragm coupled with 1/2" diameter seat for flawless operation at low flow rates
  • Available in 3/4" and 1" models
  • Double-filtered pilot flow design for maximum reliability
  • External bleed to manually flush system of dirt and debris during installation and system start-up
  • Internal bleed for spray-free manual operation

Operating Ranges

  • Flow: 0.20 – 5.0 GPM (45,42 to 1136 l/h; 0,01 to 0,32 l/s)
  • 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)

Dimensions

  • Height: 4 1/2" (11,4 cm)
  • Length: 4 1/4" (10,7 cm)
  • Width: 3 1/3" (8,4 cm)

Models

  • LFV075: 3/4" Low Flow Valve
  • LFV100: 1" Low Flow Valve
  • ASV-LF-075: 3/4" Low Flow Anti-Siphon Valve
    (LFV100 available with BSP threads)

Friction Loss Characteristics

Flow
GPM
Flow
GPH
LFV-075
psi
LFV-100
psi
ASV-LF-075
psi
0.2 12 2.8 2.8 3.8
1 60 2.8 2.8 4.3
2 120 3.5 3.5 4.3
4 240 3.7 3.7 5.0
6 360 4.4 4.4 5.8
8 480 5.2 5.2 7.0

Friction Loss Characteristics, Metric

Flow
l/hr
Flow
l/s
LFV-075
bar
LFV-100
bar
ASV-LF-075
bar
45,42 0,01 0,19 0,19 0,26
227,00 0,06 0,19 0,19 0,29
454,00 0,13 0,24 0,24 0,29
908,00 0,25 0,26 0,26 0,34
1362,00 0,38 0,30 0,30 0,40
1817,00 0,50 0,36 0,36 0,48

 

 

Low Flow Valve
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Tech Spec
(PDF: 92 KB)

CAD Detail Drawings available to download

NEW! ASV-LF-075

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Interactive Demo

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Low Flow Valve in Action!

Unique Diaphram Design
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