Outdoor Irrigation

Scenario 2: Outdoor Irrigation (Suitable for Farmland/Greenhouse Projects)

1. Core Requirements & Product Selection

 Sun & Weather Resistance Key: Sun-resistant fittings and fast-opening/closing valves are required for outdoor irrigation. We integrate resources from over 5 hot-dip galvanized fitting manufacturers in China. Regular models (hot-dip galvanized, zinc layer ≥70μm, UV-resistant, DN50–DN150) are in sufficient stock and ship within 10 days. For saline-alkali lands, we can coordinate 30-day customized saline-alkali-resistant models with Chinese manufacturers and provide saline-alkali immersion test reports to ensure service life.

 Product Specification Matching:

---Farmland Branch Connection: DN50–DN80 threaded fittings (elbows, tees, suitable for irrigation sprinklers). Chinese manufacturers produce high-adhesion zinc layers resistant to outdoor sun exposure.

---Main Irrigation Line Connection: DN100–DN150 flange fittings (suitable for large-area irrigation, excellent flange sealing to prevent water leakage).

---Valve Selection: Cast iron ball valves (DN50–DN80) for farmland (fast opening/closing, suitable for timed irrigation); cast iron gate valves (DN100–DN150) for main lines (outdoor aging-resistant). Based on irrigation water sources (e.g., river water, well water), we match Chinese manufacturers with appropriate anti-clogging performance to ensure compatibility.

 Material Assurance: Fitting zinc layers pass ≥72-hour salt-fog tests. Chinese manufacturers conduct zinc layer adhesion tests for each batch to avoid outdoor peeling.

2. Construction & Acceptance Standards

 Installation Specifications:

---Bury outdoor fittings ≥0.5m deep (avoids agricultural machinery damage); apply sun-resistant paint to exposed fittings (included with shipments, sun-resistant paint from Chinese manufacturers with strong weather resistance).

---Install waterproof protective covers for valves (5% cost increase) to prevent rainwater from entering cores and causing rust. We provide installation case references from Chinese farmland irrigation projects for your team’s planning.

 Key Acceptance Indicators:

---Flow Test: Main line fitting and valve assembly flow ≥50m³/h (ensures irrigation efficiency).

---Sealing Test: Maintain 0.6MPa water pressure for 12 hours with no leakage. We provide acceptance reports from Chinese irrigation projects to support your project.

3. Common Issues & Solutions

· Issue 1: Fitting zinc layers peel due to high summer temperatures (45℃).

Solution: Select "thickened zinc layer fittings" (sufficient stock from Chinese manufacturers, zinc layer ≥85μm, 8% cost increase); or apply sun-resistant paint to exposed areas (included with shipments). For zinc-aluminum alloy coatings, 30-day customization can be coordinated with Chinese manufacturers to adjust galvanization processes.

· Issue 2: Valves clog due to sediment in irrigation water.

Solution: Install "Y-type filter fittings" before valves (sufficient stock from Chinese manufacturers, 10% more expensive than regular fittings); clean filters regularly (filter cleaning guide provided). For automatic backwashing functions, 30-day customization can be coordinated with Chinese manufacturers to integrate backwashing structures.