Structure Composition
Manufacturers create PERT AL PERT pipe using five bonded layers. Each layer performs a specific function during operation.
The inner and outer layers use PERT material for durability. These layers resist pressure, corrosion, and deformation under stress.
The middle aluminum layer reduces oxygen permeation. This layer also maintains the pipe’s shape after bending or movement.
Two adhesive layers bond aluminum with PERT. These layers ensure the pipe resists delamination over time.
Dimensional Standards
Factories produce pipes in standard diameters. Common sizes include 16mm, 20mm, and 25mm.
Each pipe comes with precise wall thickness, typically between 2.0mm and 3.5mm.
Length options vary between coiled forms and straight sticks. Coils often range from 50m to 200m.
Manufacturers follow ISO and DIN standards. These standards guarantee size consistency and pressure reliability.
Pressure and Temperature Limits
PERT-AL-PERT pipes handle specific pressures and temperatures. Most pipes operate under 10 bar at 95°C.
Some reinforced versions tolerate 20 bar at 70°C. Users must verify ratings before system installation.
The pipe expands less than plastic pipes alone. This feature suits hot water and underfloor heating applications.
The aluminum core controls thermal expansion. This trait minimizes bending during temperature changes.
Surface and Appearance Details
Manufacturers offer both plain and printed pipes. Printed markings include batch number, size, and production date.
The outer surface may appear white, red, or blue. These colors help identify water type or circuit use.
Smooth inner surfaces reduce friction loss. This feature improves water flow and lowers energy use.
Users must avoid surface scratches during transport. Scratches may weaken the outer PERT layer.
Joint and Connection Techniques
Installers use press fittings or compression fittings. Both options ensure leak-proof connections.
Installers must clean and calibrate pipe ends before fitting. This step prevents seal failure.
Pipe insertion depth must meet fitting specifications. Incorrect depth may cause leaks.
Installers must apply proper pressing force. Inadequate force may deform the aluminum layer.
Storage and Handling Instructions
Store pipes in dry, shaded areas. Direct sunlight may damage the PERT surface.
Avoid heavy stacking to prevent oval deformation. Pipes should rest on flat supports.
Cover exposed pipe ends with caps. This step prevents dust or insect entry.
Keep pipes away from sharp objects. Damage may reduce service life or safety.
If you have read this article and have any questions, please feel free to contact IFAN. Below is our contact information:
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