The capillary dripper is one of the first type of drippers. The capacity of the capillary dripper is determined by: the working pressure, length, and inner diameter of the capillary. This results in a wide variety of capacities. The flow in the capillary is not turbulent. The capacities per dripper can differ considerably (higher CV value), especially when the drippers get a little older and therefore more polluted. The clogging sensitivity is higher than of its later successors such as: the Cobra, Woodpecker and Cameleon.

From 2016 Revaho will use a new way of coding the capillary dripper. By means of a letter coding the inner diameter is indicated. On the microtube a letter (A, B, C, D, E) is printed that corresponds with the following coding and capacity table. Capillary drippers delivered before 2015 are provided with a number (1,2,3,4). This indicates the capacity at 0.5 bar.

Characteristics

• Pressure sensitive basic dripper
• 5 encodings (A, B, C, D, E)
• Lowest uniformity in comparison to modern drippers
• Straight cut microtube instead of oblique (from 1-1-2015) for better connection to the screwdriver

Application
Various crops with relative short bed distances

Technical data

Material	PE (only available in black)
Advice working pressure	0,5 bar (0,25 - 1 bar)
Filtration	80 - 100 micron (main filtration)
	130 micron (crane set)
Capillair length	standard: 60, 85 and 100 cm
	on request: 40 - 100 cm (with different capacities)
Main hose colour	white/black and black
Main hose diameter	16/20/25/32 mm
Punch distance	5 - 300 cm

Codings microtube
Type A = 3,2 x 0,6 (1 litre/hour by 85cm at 0,5 bar)
Type B = 3,2 x 0,7 (1,5 litre/hour by 85 cm at 0,5 bar)
Type C = 3,2 x 0,8 (2 litre/hour by 85 cm at 0,5 bar)
Type D = 3,2 x 0,9 (3litre/hour by 85 cm at 0,5 bar)