China Hot Melt Three-Way Fittings - Durable, Easy to Use, and Leak-Proof from Trusted Suppliers and Factory
Core Definitions and Characteristics
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Material properties: Made from polyethylene (PE), it has corrosion resistance, light weight and high toughness.
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Connection principle: By heating the end faces of the pipe and the fitting to a molten state, they are fused under pressure and then cooled to form a molecular-level sealed interface.
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Function Positioning: Used for conveying liquids or gases (such as tap water, gas), to ensure system sealing and structural integrity.
Main Classification and Characteristics
Hot-melt socket tube
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Applicable pipe diameter: Outer diameter ≤110mm (small diameter pipe).
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Typical components: Socket elbows, tees, plugs and threaded fittings (such as internal thread unions).
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Connection method: The pipe is inserted into the fusion joint of the fitting and heated and fused by hand with a hot fuse.
Hot-melt butt fitting
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Applicable pipe diameter: Outer diameter ≥75mm (for large-diameter pipes).
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Typical components: butt joints, tees, flanges and plugs.
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Connection method: Special butt welding machine heat the end of the tube, fuse under pressure and then cool.
Core Advantage
Application Scenarios
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Typical application scenarios: Municipal water supply, fire protection pipe networks and drainage systems.
Frequently Asked Questions
What material is used for these fittings and what are its properties?
They are made from Polyethylene (PE), which provides outstanding properties such as corrosion resistance, light weight, and high toughness.
How does the connection principle of hot-melt fittings work?
By heating the end faces of the pipe and the fitting until they reach a molten state, they are fused together under pressure. Once cooled, they form a highly secure, molecular-level sealed interface.
What is the difference between hot-melt socket and hot-melt butt fittings?
Hot-melt socket fittings are typically used for smaller pipe diameters (outer diameter ≤110mm) and are fused by hand. Hot-melt butt fittings are designed for larger pipe diameters (outer diameter ≥75mm) and require a special butt welding machine to connect.
What are the main benefits of using PE hot-melt fittings?
They offer excellent sealing to eliminate leakage risks, high durability with a service life exceeding 50 years, and easy construction due to their low density (roughly 1/8 of steel pipe) which requires no extra anti-corrosion treatments.
Where are PE hot-melt fittings most commonly applied?
They are widely used in infrastructure projects, specifically municipal water supply systems, fire protection pipe networks, and drainage systems.