A few recommendations for choosing a drip irrigation tape


Uneven distribution of moisture in the root zone reduces the yield of greenhouse crops and provokes rotting of the root system. The integration of emitter lines compensates for pressure fluctuations and ensures targeted irrigation of the soil.
The design of a hydraulic system requires accurate calculation of drainage and consideration of planting density. The technical audit of the equipment's characteristics eliminates the risk of pipeline rupture during hydraulic shocks.
Calculation of wall thickness and material density
The service life of the polymer backbone directly depends on the thickness of the extruded polyethylene, measured in mils. Thin-walled sleeves 5-6 mils thick are used exclusively for annual crops with a short growing season. Laying such highways requires perfect soil preparation without sharp stones and hard rhizomes.
Long-term irrigation systems require the use of thick-walled pipes:
- belts with a thickness of 8 to 10 mils for mechanized laying;
- hoses for 15 mils for rocky soils;
- blind tubes over 20 mils thick for laying in trenches.
The dense wall can withstand an operating pressure of up to 2 bar, which allows long circuits to be connected to powerful centrifugal pumps. Protection of the material from ultraviolet radiation is achieved by introducing carbon black stabilizers into the polymer. Tubes without a UV filter are destroyed by exposure to the sun in one summer season.
Resistance to mechanical damage protects the line from punctures by birds' beaks and rodent teeth. Thick-walled plastic retains elasticity during night frosts, preventing polymer cracking.
Selection of emitters and calculation of the discharge indicator
The integration of the droppers (emitters) into the tube takes place at the extrusion stage at the factory. The pitch of the outlets varies from 10 to 30 cm, which allows you to choose a ribbon for a specific planting scheme of tomatoes or strawberries. Rigid emitters create a turbulent flow inside the maze, which washes out fine sand fractions.
Compensated drippers stabilize water consumption on difficult terrain:
- ensuring uniform irrigation on slopes;
- maintaining pressure at the end of a line up to 100 meters long;
- blocking the flow of water when the pump is turned off.
The water discharge rate of one dropper determines the rate of moistening of the root coma. The standard emitter passes from 1 to 2 liters of water per hour, which prevents waterlogging of heavy loamy soils. Sandy soils require the installation of drippers with a discharge of up to 3 liters per hour to compensate for the rapid drainage of moisture.
Self-cleaning silicone membranes inside the emitter vibrate under water pressure, shedding limescale. The technology protects the holes from calcification when using hard artesian water.
Filtration systems and connection to the main pipeline
Clogging of the microlabirints of the emitter with dispersed mud leads to a complete blockage of the irrigation line. The installation of a coarse disc filter traps algae, rust particles and river sand. The degree of cleaning of the mesh cartridge should be at least 120 mesh to ensure the safety of the narrow channels of the droppers.
The installation of a pressure reducer protects the system from rupture when directly connected to the central water supply. The valve relieves excess pressure, stabilizing the values at the operating level of 1.5 bar. The integration of the fertigation unit (Venturi injector) allows the dosing of liquid mineral fertilizers directly into the root zone.
Connectors and starting cranes are assembled without using tools using compression nuts. Rubber seals ensure the tightness of the joints of the HDPE pipe and thin-walled tape. Crimping the system before filling the trenches reveals hidden leaks of the connection nodes. https://1winind.in/1win-app/