Overseas Mining

Scenario 3: Overseas Mining (Suitable for Outdoor Ore Projects)

1. Core Requirements & Product Selection

 Weather & Wear Resistance Key: Weather-resistant fittings and wear-resistant valves are required for outdoor mining. We integrate resources from over 3 weather-resistant fitting manufacturers in China. Regular models (carbon steel + weather-resistant and wear-resistant coatings, DN200–DN300) are in sufficient stock and ship within 10 days. For coastal high-salt-fog areas, we can coordinate 30-day customized salt-fog-resistant models with Chinese manufacturers and provide salt-fog test reports (e.g., 500-hour salt-fog resistance with no rust) to ensure outdoor use.

 Product Specification Matching:

---Ore Transportation Connection: DN200–DN300 weather-resistant flange fittings (suitable for large-flow ore transportation). Chinese manufacturers produce UV-resistant coatings to avoid outdoor sun-induced peeling.

---Auxiliary Water Supply Connection: DN80–DN100 weather-resistant threaded fittings (suitable for water supply needs, thread accuracy meets international standards).

---Valve Selection: Weather-resistant wear-resistant gate valves (DN200–DN300) for ore (weather-resistant paint-coated bodies); weather-resistant ball valves (DN80–DN100) for water supply (outdoor aging-resistant). Based on outdoor climate conditions, we match Chinese manufacturers with corresponding weather resistance grades to provide compatible solutions.

 Material Assurance: Fittings are uniformly made of weathering steel (2x more atmospheric corrosion-resistant than regular carbon steel). Chinese manufacturers conduct weather resistance tests for each batch to ensure ≥5-year outdoor service life.

2. Construction & Acceptance Standards

 Installation Specifications:

---Install sunshades for outdoor fittings (provided by Chinese manufacturers, 5% cost increase) to avoid high-temperature-induced coating aging.

---Apply anti-rust grease to flange bolts (included with shipments) to prevent rust in humid outdoor environments. We provide installation case references from Chinese outdoor mining projects for your team’s reference.

 Key Acceptance Indicators:

---Weather Resistance Test: No coating cracking or fading after 72-hour sun exposure.

---Pressure Test: Maintain 1.2x working pressure (≤24kg) for 30 minutes with no leakage. We provide acceptance reports from Chinese outdoor pipe projects to support your project.

3. Common Issues & Solutions

· Issue 1: Fitting interface seals fail due to large outdoor temperature differences (20℃ day-night difference).

Solution: Use "flexible sealing fittings" (sufficient stock from Chinese manufacturers, 10% more expensive than rigid models, compensates for ±3mm temperature-induced deformation). For larger temperature differences, 30-day customization can be coordinated with Chinese manufacturers to adjust seal designs.

· Issue 2: Fitting inner walls rust due to moisture in ore.

Solution: Apply rust-resistant wear-resistant coatings to inner walls (15% cost increase); or blow dry pipes with compressed air after transportation (compressed air equipment procurement recommendations provided). For stainless steel materials, 30-day customization can be coordinated with Chinese stainless steel manufacturers for production.