Our Galvanized Malleable Iron Reducing Sockets are precision-engineered components designed for connecting two pipes of different sizes while maintaining a consistent flow direction. Manufactured from high-grade black heart malleable iron and finished with a hot-dipped galvanized coating, these sockets provide exceptional tensile strength and superior resistance to rust, corrosion, and oxidation in demanding industrial environments.
Equipped with Female National Pipe Taper (NPT) threads on both ends, these reducing sockets ensure tighter, leak-proof seals compared to standard straight threads. Whether your application involves water, oil, air, steam, or gas, our fittings adhere to rigorous international standards including ISO5922, ANSI/ASME, and DIN, guaranteeing reliability and safety in high-pressure piping systems.
Detailed Parameters
| Material | Black Heart Malleable Iron (ISO5922 / ANSI A197) | Standards | BS, ANSI/ASME B16.3, DIN 2950 / 2999 |
|---|---|---|---|
| Size Range | 1/4” – 6” (as per ISO49 / DIN2950) | Threading | NPT / ISO 7/1 / ANSI B1.20.1 |
| Tensile Strength | ≥33kg/mm² (≥350MPa) | Elongation | ≥8% to 10% |
| Hardness | < HB150 | Test Pressure | 2.5 MPa (25KG/CM²) |
| Working Pressure | 1.6 MPa (16KG/CM²) | Surface Finish | Hot Dipped Galvanized / Black |
Key Advantages
Corrosion Resistance
Hot-dipped galvanized finish provides a robust barrier against rust in water, air, and steam applications.
Extended Durability
Malleable iron construction ensures high tensile strength and resistance to mechanical impact.
Leak-Proof Seals
NPT tapered threads create a tighter, more secure seal than straight threads for critical fluid transport.
Global Compliance
Certified by ISO9001, CIQ, ITS, SGS, and BV to meet strict international quality benchmarks.
Versatile Application
Ideal for diverse pipelines including oil, gas, steam, and compressed air systems.
Precision Fitting
Available in various series (Heavy, Standard, Medium, Light) to match specific wall thickness needs.
Product Gallery
Management Platforms
Quality Control
Rigorous testing for tensile strength and elongation to ensure material integrity.
Pressure Testing
Each batch is tested at 2.5MPa to guarantee zero-leak performance at working pressure.
Standard Compliance
Strict adherence to DIN, ASME, and ISO standards for seamless global integration.
Customization
Support for buyer's specific drawings and design requirements for specialized projects.
Export Packing
Secure packaging in export cartons, double woven bags, or pallets for safe transit.
Logistics Efficiency
Optimized shipment cycles with delivery typically within 30-45 days post-deposit.
Investment Return Comparison
| Feature | Galvanized Malleable Iron | Standard Black Iron |
|---|---|---|
| Lifespan | Long-term (Rust Resistant) | Short-term (Prone to Oxide) |
| Maintenance | Low Maintenance | Frequent Coating Needed |
| Environment | Wet/Steam/Outdoor | Dry/Indoor Only |
| Initial Cost | Competitive | Low |
| Total Cost of Ownership | Lower (Less Replacement) | Higher (Frequent Failure) |
Frequently Asked Questions
NPT (National Pipe Taper) threads are tapered, meaning the diameter decreases along the length. This creates a wedge effect that compresses the threads together, forming a tighter, more leak-resistant seal compared to straight threads.
Hot-dipping ensures the zinc coating penetrates the surface of the iron, providing superior protection against corrosion and rust, especially in humid or outdoor environments where water and steam are present.
Our products are manufactured according to ISO5922, ANSI/ASME A197, and DIN1692 for materials, while dimensions and threads follow ISO49, ANSI/ASME B16.3, and DIN2950.
The standard working pressure is 1.6 MPa (16KG/CM²), while the test pressure is rated at 2.5 MPa (25KG/CM²) to ensure a safety margin during operation.
Yes, they are specifically designed for the connection of water, oil, air, steam, and gas pipelines, provided the pressure and temperature remain within the material's operational limits.
We offer a wide range of sizes from 1/8" up to 6", including common increments such as 1/4", 1/2", 3/4", 1", 2", and 4" to fit various piping configurations.
