China Hot Melt Three-Way Fittings Suppliers - Durable and Easy to Install Welding Components from Factory
Core Definitions and Characteristics
The core definitions and characteristics are as follows:
Made from polyethylene (PE), it has corrosion resistance, light weight and high toughness.
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.
Used for conveying liquids or gases (such as tap water, gas), to ensure system sealing and structural integrity.
Main Classification and Characteristics
They are divided into two categories based on structural differences:
- Applicable pipe diameter: Outer diameter ≤110mm (small diameter pipe).
- Typical components: Socket elbows, tees, plugs and threaded fittings (such as internal thread unions).
- Connection method: The pipe is inserted into the fusion joint of the fitting and heated and fused by hand with a hot fuse.
- Applicable pipe diameter: Outer diameter ≥75mm (for large-diameter pipes).
- Typical components: Butt joints, tees, flanges and plugs.
- Connection method: Special butt welding machine heats the end of the tube, fuses under pressure and then cools.
Core Advantages
Molecular fusion at the fusion interface eliminates the risk of leakage.
Resistant to chemical corrosion and has a service life of over 50 years.
Low density (about 1/8 of steel pipe), no additional anti-corrosion treatment required.
Application Scenarios
Municipal water supply, fire protection pipe networks and drainage systems.
Frequently Asked Questions
They are made from high-quality polyethylene (PE), providing excellent corrosion resistance, a lightweight design, and high toughness.
By heating the end faces of the pipe and the fitting to a molten state, they are fused together under pressure. As they cool, they form a molecular-level sealed interface that completely eliminates the risk of leakage.
Hot-melt socket tubes are typically used for smaller pipes with an outer diameter of ≤110mm, whereas hot-melt butt fittings are designed for larger pipes with an outer diameter of ≥75mm.
These fittings are highly durable, resistant to chemical corrosion, and have an estimated service life of over 50 years.
They have a low density (approximately 1/8 the weight of steel pipe), making them lightweight and easy to handle without requiring additional anti-corrosion treatments.