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The Malleable Iron 90° Reducing Elbow with Electrophoretic Coating represents a significant leap in piping engineering, integrating a precision-molded bend and diameter reduction into a single, seamless component. By eliminating traditional connection points, this innovative design effectively removes potential leakage sites while optimizing fluid dynamics with a 1.5D curvature radius that reduces resistance by up to 40%.
Engineered for extreme environments, this fitting features a 360° full-coverage epoxy electrophoretic coating on both inner and outer walls. Combined with finite element analysis for optimized wall thickness and structural strength, it ensures unmatched stability and corrosion resistance for critical industrial applications, from chemical processing to marine systems.
| Material | Malleable Cast Iron | Coating Type | Black Epoxy Electrophoresis + PU Topcoat |
|---|---|---|---|
| Coating Thickness | 40-45μm | Salt Spray Resistance | ≥1200 Hours |
| Operating Pressure | Up to 4.0 MPa (PN40) | Temperature Range | -30℃ to 130℃ |
| Standard | GB/T 3287 | Angle Tolerance | ±1° |
| Available Sizes | 1"×3/4", 1-1/4"×1", 1-1/2"×1-1/4", 2"×1-1/2" | pH Tolerance | pH 4-10 |
Epoxy electrophoretic coating ensures 360° protection and passes the 30-day cyclic corrosion test (CCT).
Withstands 100,000 pressure pulse fatigue tests and resists chemical media contact.
1.5D curvature radius and gradual diameter transition minimize turbulence and fluid resistance.
One-piece molded design eliminates leak points common in separate bend-and-reducer setups.
Finite element analysis (FEA) ensures uniform pressure bearing and maximum structural strength.
100% X-ray flaw detection and 7.2MPa high-pressure testing for zero-defect reliability.
100% X-ray flaw detection ensures zero internal casting defects.
Grade 0 adhesion standards for electrophoretic coating layers.
Rigorous 7.2MPa water pressure testing held for 3 minutes.
Coordinate Measuring Machine (CMM) for micron-level accuracy.
Premium malleable cast iron compliant with global industrial standards.
Standardized 5-step professional installation and pressure testing protocol.
| Comparison Item | Standard Fittings | Electrophoretic Reducing Elbow |
|---|---|---|
| Leakage Risk | Higher (Multiple joints) | Minimal (Integral design) |
| Maintenance Cycle | Frequent (Corrosion prone) | Extended (Salt spray resistant) |
| Flow Efficiency | Standard Resistance | 40% Lower Fluid Resistance |
| Installation Time | Lengthy (Two-step) | Rapid (Single component) |
| Life Cycle Cost | High (Replacement cost) | Low (Durability focus) |
Electrophoresis provides 360° full coverage, including inner walls, ensuring a uniform thickness of 40-45μm that is significantly more resistant to corrosion and salt spray (≥1200 hours) than spray painting.
By combining the 90° bend and the reduction transition into one molded piece, it eliminates the need for a separate reducer and elbow, removing a potential leak point and reducing the total number of joints in the system.
It is ideal for chemical piping in corrosive environments, marine cabin layouts with limited space, wastewater treatment plants, and coastal facilities exposed to severe salt spray.
These fittings are designed for high-performance use with an operating pressure up to 4.0 MPa (PN40 level) and a wide temperature tolerance range from -30℃ to 130℃.
Yes, while the standard is black epoxy, we offer specialized FDA-compliant coating options specifically designed for food-grade applications upon request.
We recommend using a nylon protective wrench during installation to avoid scratching the coating and performing a pressure test 48 hours after installation to ensure a perfect seal.
