Layer Construction and Burst Pressure Ratings
Agricultural spray hoses operate under severe hydraulic pressure generated by high-pressure piston pumps (HTP).
Quality spray pipes feature 3-ply to 5-ply cross-woven synthetic yarn reinforcement encased in abrasion-resistant PVC.
- Multi-layered construction: Smooth chemical-resistant inner PVC tube, high-tensile braided polyester yarn reinforcement, and UV-stabilized outer ribbed cover.
- Pressure ratings: Standard hoses handle 40 to 60 kg/cm2 working pressure and up to 150 to 200 kg/cm2 burst pressure ratings.
- Chemical resistance: Engineered to resist degradation from harsh agrochemicals, emulsifiable solvents, foliar acids, and liquid fertilizers.
- Flexibility & anti-kinking: Retains flexibility across seasonal temperature changes without kinking or bursting under high pressure surges.
Couplings, Hose Reels, and Farm Field Care
Dragging hoses across rough, stony field terrain and sharp crop stubble presents severe mechanical abrasion hazards.
Utilizing portable hose reels and crimped brass couplings ensures long service life and leak-free spraying.
- Brass couplings: Use factory-crimped heavy brass swivel fittings to prevent hose blow-offs under peak pump pressures.
- Hose reels: Store and deploy long lengths (50m, 100m, or 200m) using manual or motorized hose reels to prevent tangling and dragging damage.
- Post-spray flushing: Flush the hose with clean water and drain completely before winding to prevent chemical residue hardening inside the pipe.
- Subsidies: High-pressure hoses and sprayer accessories are eligible for financial assistance under the central SMAM scheme.
Official source
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Sub-Mission on Agricultural Mechanization (SMAM) ↗Related on KisanPe
Common questions
What is the typical working pressure of an agricultural spray pipe?
High-pressure agricultural spray pipes typically operate at 40 to 60 bar (approx. 600 to 900 PSI), with burst ratings exceeding 150 bar.
Why is multi-ply braiding important in a spray hose?
High-tensile polyester braided yarn provides radial strength, preventing the flexible PVC tube from expanding, ballooning, or bursting under pressure.
How can farmers prevent high-pressure hoses from cracking in the sun?
Choose UV-stabilized hoses, avoid leaving pressurized pipes in direct midday sun, and roll them onto reels in a shaded store after work.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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