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Which Is Better? PVC Pipe vs PEX Pipe vs PPR Pipe

In modern industry, PEX pipe, PVC pipe and PPR pipe have a wide range of applications, today we will discuss “How to choose the pipes?

Comparison of Core PAGarameters

Indicatorstubo de PVCtubo de pprTubería PEX
Material CompositionCLORURO DE POLIVINILO + stabilizerRandom copolymer polypropyleneCrosslinked polyethylene
Operating Temperature0-60 20-95 70-110
Pressure Rating1.0MPa(Class 1.0)2.0 MPa (PN20)1.6 MPa(SDR9)
Coefficient of Thermal Expansion6 x 10 ⁻ ⁵ / 1.5 x 10 ⁻ ⁴ / 1.2 x 10 ⁻ ⁴ /
Service Life2550 años50 + años5070 años
Conexión MethodAdhesive connectionHot melt weldingClamp type connections
Cost per Meter$0.81.2$1.52.0$2.03.5

▲ Collation of laboratory data according to ASTM standards

PVC Water Supply Pipe

Analysis of CLORURO DE POLIVINILO Pipe and Fitting

1. Technical breakthrough point

Enhanced formula: The use of calcium zinc stabilizer instead of traditional lead salt formula, through the NSF 61 drinking water certification

Improved impact resistance: Add 5% acrylic elastomer, drop hammer impact strength of 20kJ/m² (ASTM D2444)

  • Solicituds

Municipal engineering: Drainage main pipe with a diameter of more than 300mm

Agricultural irrigation: UV anti-aging formula pipeline (add 2% carbon black)

Chemical: CPVC corrosion resistant variant (suitable for pH 113)

3. Advantages of PVC Pipe and Fitting

Originalsandwichpipe wall structure: inner and outer antibacterial layer + middle strengthening layer

Production accuracy: diameter tolerance ±0.15%, ellipticity ≤0.5%

Testing standard: Passed the ISO 44222:2007 burst pressure test

Analysis of CLORURO DE POLIVINILO Pipe and Fitting

1. Material revolution

Fourth generation β crystal PPR: thermal deformation temperature increased to 135℃ (25℃ higher than the traditional)

Nano antibacterial layer: composite silver ion coating, antibacterial rate > 99.99%

2. Installation points

Parámetros de fusión en caliente:

260±5℃ welding temperature

Heating time = pipe diameter (milímetros)/20 x 1.5 artículos de segunda clase

Cooling time > Pipe diameter (milímetros)/10 minutes

3 Special application scheme

Hospital hot water system: S4 grade pipe (wall thickness 3.7mm) bearing 2.5MPa

Ground source heat pump system: compound pipe with EVOH oxygen blocking layer

Flexible PEX Pipe and Fitting

Innovative Application of PEX pipeline

  1. Technological

First generation: Peroxide crosslinking (PEXA)

Generation 2: Silane crosslinking (PEXB)

Electron Beam Irradiation Crosslinking (PEXC) Pipe

2. Frontier technology

Intelligent memory pipe: 20℃ environment still maintain flexibility

Oxygen blocking composite pipe: aluminum layer thickness 0.2mm, oxygen transmittance < 0.1g/m³

3. Engineering case

Burj Dubai water supply system: Use PEXALPEX composite pipe, pressure 10bar

Nordic floor heating project: φ16mm pipe laying spacing 75mm, surface temperature difference < 0.5

Selection of Pipe decision

1. Water temperature < 60℃ → PVC is the best cost-effective

2.6095℃ hot water → Select PPR (preferred β crystal)

3. Floor heating/complex wiring → PEX flexible piping

4. Drinking water system → PPR nanoantibacterial tube

5. Corrosive media → PVC/CPVC special pipe

Global certification comparison table

Certification SystemPVC requirementsPPR standardPEX test method
European UnionEN 14522:2009EN ISO 15874EN ISO 15875
United StatesASTM D1785ASTM F2389ASTM F876
ChinaGB/T 10002.12006GB/T 18742.22017CJ/T 1752002
Middle EastSASO 1993GSO 1893ES 14522:2015

Our company qualification: At the same time holds WRAS, UL, W270 and other 12 international certifications

Solution of Pipe Installation

tubo de PVC:

Check if the adhesive is expired (shelf life < 6 months after opening)

Socket depth should be ≥ 1.5 times the diameter of the pipe

PPR hot melt deformation:

Use a welder with digital display temperature control

Extend the cooling time by 30% when the ambient temperature is < 5

PEX pipe fittings fall off:

Use brass clamps instead of plastic clamps

Bend radius > 6x pipe diameter (PEXA)

Proveedor

Luoyang Datang Energy Tech Co., Limitado. es un fabricante chino líder que se especializa en tuberías y accesorios de plástico de alta calidad.. Equipado con líneas de producción automatizadas de última generación y respaldado por un equipo de 200 profesionales, Ofrecemos una extensa línea de productos que comprende más de 150 types of plastic pipes and fittings designed for water supply and drainage systems, transmisión de gas, y sistemas de calefacción por suelo radiante. Nuestros principales productos incluyen Tuberías y accesorios de PVC, educación física (PEAD) Tuberías y accesorios, Tuberías y accesorios de PPR, y tuberías de calefacción por suelo radiante PEX. 

Should you have any inquiries regarding our Healthy PPR Pipes and Fittings, por favor no dude en contactarnos!

Telf.:0086-183 3790 0677

chatear: 0086-183 3790 0677

Whatsapp: 0086-183 3790 0677

Correo electrónico: ventas@pipesandfittings.net

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