Product Overview
The malleable iron electrophoretic 90° reducing elbow is a high-performance pipe fitting that perfectly combines diameter changing function with 90° steering. It is made of high-strength malleable iron through precision casting and treated with advanced electrophoretic coating technology. Specifically designed for harsh environments requiring simultaneous changes in pipe direction and diameter, it is a core component for upgrading piping systems in corrosive environments.
Innovative Design: Integrated Reduction and Bend
The 90° bend and reduction transition are integrally molded, eliminating connection leakage points.
The elbow curvature radius is optimized to 1.5D, reducing fluid resistance by 40%.
Simultaneous electrophoresis on both inner and outer walls provides 360° full corrosion protection.
Intelligent Stress Distribution:
Finite element analysis optimizes wall thickness distribution for more uniform pressure bearing.
Gradual expansion/contraction design at the diameter change point avoids turbulence.
Smooth transition between reinforcing ribs and the main body enhances structural strength.
Performance Breakthrough: Superior Corrosion Resistance
Epoxy electrophoretic coating thickness 40-45μm, salt spray resistance ≥1200 hours.
Tolerates pH 4-1. 0% long-term contact with chemical media
Passes 30-day cyclic corrosion test (CCT)
Excellent mechanical properties
Operating pressure up to 4.0 MPa (PN40 level)
Temperature range: -30℃ to 130℃
Passes 100,000 pressure pulse fatigue tests
Product Specifications: Material: Malleable cast iron
Coating: Black epoxy electrophoresis + polyurethane topcoat
Main Specifications: 90° reducing elbow (1″×3/4″, 1-1/4″×1″, 1-1/2″×1-1/4″, 2″×1-1/2″)
Angle tolerance: ±1°
Standard: GB/T 3287
Application Scenarios
Chemical Piping: Pipeline reversal and diameter reduction connections in corrosive environments
Marine Systems: Pipeline layouts within ship cabins with limited space
Environmental Engineering: Pipeline renovation and upgrades in wastewater treatment plants
Coastal Facilities: Ports, docks, and other areas with severe salt spray corrosion
Professional Installation
① Confirm that the medium flow direction is consistent with the elbow direction.
② Connect the larger diameter end to the main pipe and the smaller diameter end to the branch pipe.
③ Use a nylon protective wrench to prevent coating damage.
④ It is recommended to perform a pressure test 48 hours after installation.
⑤ Add pipe support at the elbow outlet.
Quality Control: 100% X-ray flaw detection of castings.
Electrophoretic coating adhesion test (Grade 0 standard).
7.2MPa water pressure test, holding pressure for 3 minutes.
Coordinate measuring machine (CMM) to ensure dimensional accuracy.
Selection Recommendations: Mildly corrosive environments: Standard electrophoretic coating. Moderate chemical corrosion: Optional double-layer electrophoretic reinforced type. Space-constrained scenarios: Select short radius (1D) series. Food-related applications: FDA-compliant coating options available.
Malloy electrophoretic 90° reducing elbow—with its one-piece diameter reducing and turning design and superior corrosion resistance, it provides a reliable space solution for piping systems in complex conditions!
Post time: Jan-15-2026