Reliable Press Connections for Modern Plumbing
Yinlong's PPSU Multilayer Press Fittings offer a state-of-the-art solution for connecting multilayer composite pipes (like PEX-AL-PEX). This system combines the superior performance of a high-grade PPSU body with the strength of a stainless steel press sleeve, ensuring a fast, secure, and permanent connection without the need for welding, soldering, or glue.
Designed for efficiency and safety, our press fittings feature a "Leak-Before-Press" function and double O-ring seals, providing installers with confidence and peace of mind. They are the ideal choice for hot and cold water supply, as well as heating systems.
Our Press Fitting Range
Available in both black and white PPSU bodies to suit your project requirements.

Equal Tee (Black)

90° Elbow (Black)

Equal Coupling (Black)

Reduce Coupling (Black)

Reduce Tee (Black)

Equal Tee (White)

90° Elbow (White)

Equal Coupling (White)

Reduce Coupling (White)

Reduce Tee (White)
Advantages and Specifications
Key Features & Benefits:
- Press-to-Connect Technology: Rapid and effortless installation using standard press tools, significantly reducing labor time.
- Leak-Before-Press (LBP) Safety: Un-pressed connections are designed to leak during pressure testing, allowing for easy identification of missed joints.
- High-Performance Materials: PPSU body is lightweight, corrosion-free, and resistant to scale buildup. The 304 stainless steel sleeve provides a robust and permanent crimp.
- Double EPDM O-Ring Seal: Two high-quality EPDM O-rings ensure a durable, long-lasting, and watertight seal under various temperature and pressure conditions.
- Visual Inspection Window: A window on the sleeve allows installers to visually confirm that the pipe has been fully and correctly inserted before pressing.
Technical Specifications:
| Body Material | PPSU (Polyphenylsulfone) |
| Sleeve Material | Stainless Steel 304 |
| Seal Material | Dual EPDM O-Rings |
| Compatible Pipe | Multilayer Composite (PEX-AL-PEX, etc.) |
| Connection Method | Mechanical Pressing (Compatible with U, TH, RF profiles) |
| Applicable Standards | ISO 21003, ISO 1167, GB/T 18997 |
| Available Sizes | 16mm - 32mm |
| Max. Temperature | 95°C / 203°F |
| Max. Pressure | 10 bar / 145 psi |
Interested in our Press Fitting solution?
Our complete product catalog contains detailed dimensions, part numbers, and installation guides.
Download Catalog (PDF)