Product Introduction
Prefabricated insulated PPR pipe is a high-performance piping system that integrates water transport, insulation, and protection. It consists of an inner PPR pipe layer, a middle polyurethane insulation layer, and an outer HDPE protective jacket. It is suitable for hot and cold water, central heating, refrigeration, and ground-source heat pump systems.
Product Parameters
|
Property |
Parameter |
Test Standard |
|
Density |
0.905 g/cm³ |
ISO |
|
Tensile Strength |
25 MPa (Yield Strength) |
ISO |
|
Flexural Modulus |
800 MPa |
ISO |
|
Charpy Notched Impact Strength |
20 kJ/m² (23°C) |
ISO |
|
Linear Expansion Coefficient |
1.5×10⁻⁴ cm/cm/°C |
ISO |
|
Heat Resistance Temperature |
95°C-100°C |
ISO |
Fittings - Environmentally Friendly Brass
Using European standard CW617N environmentally friendly brass, with excellent mechanical properties and health safety:
- Copper content 61%-64%, zinc as remainder
- Lead content ≤0.05%, compliant with EU RoHS directive
- Tensile strength: 450 MPa
- Hardness: 80 HRB
Product Features
Durable
The inner layer is made of Borealis RA130E PPR, which is heat-resistant up to 95°C and has a service life of over 50 years. The outer HDPE sheath is impact-resistant and UV-resistant, suitable for underground or outdoor use.
High Thermal Insulation
Pre-insulated PPR pipes utilize a closed-cell polyurethane foam layer with a thermal conductivity of ≤0.030 W/(m·K), achieving long-term energy savings of up to 80%.
Easy Installation
Prefabricated and ready for on-site hot-melt connection.
Technical Info
|
Parameter |
Value |
|
Operating Temperature |
-20°C to +95°C |
|
Short-Term Peak Temp |
Up to 100°C |
|
Operating Pressure |
≤16 bar |
|
Insulation Performance |
≤0.030 W/mK |
|
Expected Lifespan |
>50 years |
|
Available Pipe Sizes |
20–160 mm |
Why We Are the Leading Manufacturer of Pre-insulated PPR Pipes
Over 12 Years of Industry Experience
We have specialized in pipe and fittings production and international trade for over 12 years, accumulating extensive manufacturing and export experience.
Complete Product Range
We offer a wide range of products, including PPR pipes and fittings, PERT pipes, PE pipes, PEXC pipes, and pre-filters, to meet diverse market and customer needs.
Strict Quality Management System
We are ISO 9001:2015 certified, ensuring every product meets international standards.
Free Samples and Fast Delivery
We offer free samples for quality verification, and our standard delivery time is 20–30 days, ensuring efficient cooperation.
FAQ
Q: Do you test all goods before delivery?
A: Yes, we test all products 100% before delivery to ensure that quality meets standards and customer requirements.
Q: Can I get samples from your factory?
A: Yes. We can provide free samples upon request. Shipping costs are negotiable or borne by the customer and are refundable after order confirmation.
Q: What are your payment terms?
A: We accept 30% T/T in advance, 70% before shipment, or 100% irrevocable letter of credit (L/C).
Q: What is your minimum order quantity (MOQ)?
A: We do not have a fixed MOQ; we can customize and negotiate it based on our customers' specific needs.
Q: What is your lead time?
A: Typically, delivery is 15-30 days after receiving the deposit, depending on the order quantity and product type.
Q: How do pre-insulated PPR pipes work?
A: Prefabricated insulated PPR pipes convey fluids through an inner PPR layer, while a polyurethane insulation layer in the middle reduces heat exchange. An outer HDPE layer provides structural stability.
Q: What applications can they be used for?
A: Suitable for building hot and cold water systems, district heating and cooling, floor heating, solar energy, and heat pump circulation systems.
Q: How is it installed?
A: It uses a hot-melt connection method, ensuring secure, leak-proof joints and quick and easy installation.
Q: How is it protected during transportation?
A: Both ends are capped and packaged for impact resistance to prevent moisture, dust, and mechanical damage.
Q: Are custom sizes available?
A: We offer diameters ranging from 20–160 mm, and both length and insulation thickness can be customized upon request.
Q: What are the maintenance requirements?
A: Regular inspection of the joint seals is sufficient. The inner pipe is smooth and does not require cleaning.
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