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Our Malleable Iron Pipe Fitting Unions are engineered for high-performance industrial piping systems, offering a superior balance of strength and ductility. Specifically designed for versatile connectivity, these unions facilitate efficient joining of pipes across various sectors, ensuring a secure, leak-proof seal that maintains optimal flow for fluids and gases.
Designed for longevity and ease of maintenance, these threaded connectors eliminate the need for specialized tools during installation or replacement. By utilizing high-grade materials resistant to corrosion and extreme temperatures, our fittings provide a cost-effective and reliable solution for complex piping layouts in demanding environments.
| Available Size | 1/8" - 6" | Standard Threads | BS / NPT / DIN |
|---|---|---|---|
| Work Pressure | 1.6 Mpa | Test Pressure | 2.4 Mpa |
| Surface Finish | Galvanized / Black | Seat Type | Female Flat Seat |
| Joint Option A | Female Conical Joint | Joint Option B | M&F Conical Joint |
| Special Seat | Brass to Iron Seat | Material Base | High-Strength Malleable Iron |
Crafted from premium materials that resist corrosion and withstand high-pressure environments for a long operational life.
The threaded design allows for quick, simple, and secure assembly, significantly reducing labor time and costs.
Excellent material elasticity ensures the fitting can handle mechanical stress without cracking or failing.
Precision-threaded joints minimize the risk of leaks, ensuring a safe and smooth flow of gas or liquid.
Optimized for narrow sites and dense pipe arrangements where traditional welding is impractical.
Allows for effortless removal and replacement of pipes for repair without requiring professional assistance.
Real-time tracking of all pipe fitting sizes and specifications for rapid dispatch.
Strict testing at 2.4 Mpa to ensure every union meets international safety standards.
Automated status updates from casting to galvanization and final shipping.
Integrated shipping management for global delivery of heavy metal products.
Flexible ordering for specific thread types (BS/NPT/DIN) and surface finishes.
Dedicated engineering guidance for selecting the right seat type for your project.
| Evaluation Factor | Standard Cast Iron | Malleable Iron Union |
|---|---|---|
| Installation Speed | Moderate | Ultra-Fast (Threaded) |
| Maintenance Cost | High (Requires cutting) | Low (Easy unscrew) |
| Structural Strength | Brittle | High Ductility |
| Leak Risk | Higher | Minimal / Secure |
| Service Lifespan | Short-Medium | Long-Term Reliable |
Galvanized finishes provide a protective zinc coating to prevent rust and corrosion, making them ideal for outdoor or moist environments. Black finishes are typically used for gas or oil lines where corrosion resistance is less critical.
We support all major international standards including BS (British Standard), NPT (National Pipe Thread), and DIN (German Industrial Standard) to ensure global compatibility.
Yes, our unions have a working pressure of 1.6 Mpa and are tested up to 2.4 Mpa, ensuring safety and stability under significant pressure loads.
Malleable iron undergoes additional heat treatment, which removes carbon and increases ductility, making it far less brittle and more resistant to impact than standard cast iron.
The Brass to Iron seat provides a superior sealing interface, reducing the risk of galling and improving the airtightness of the connection over time.
Maintenance is simple due to the threaded design. You can easily unscrew the union to inspect the pipes or replace a section without the need for welding or cutting the entire line.
