Malleable iron pipe fittings with electrophoretic coating 90° reducing elbow

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!