LUOYANG VEIO ENERGY TECH CO., LTD

O que é melhor? 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 de Core Pamperímetros
| Indicadores | Tubo de PVC | Tubo PPR | Tubo PEX |
| Material Composition | PVC + stabilizer | Random copolymer polypropylene | Crosslinked polyethylene |
| Operating Temperature | 0-60 ℃ | 20-95 ℃ | 70-110 ℃ |
| Pressão Rating | 1.0MPa(Class 1.0) | 2.0 MPa (PN20) | 1.6 MPa(SDR9) |
| Coefficient of Thermal Expansion | 6 x 10 ⁻ ⁵ / ℃ | 1.5 x 10 ⁻ ⁴ / ℃ | 1.2 x 10 ⁻ ⁴ / ℃ |
| Service Life | 2550 anos | 50 + anos | 5070 anos |
| Connection Method | Adhesive connection | Soldagem por fusão a quente | Clamp type connections |
| Cost per Meter | $0.81.2 | $1.52.0 | $2.03.5 |
▲ Collation of laboratory data according to ASTM standards

Analysis of PVC 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)
- Applicationé
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
Original “sandwich” pipe 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 PVC 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
Hot melt parameters:
260±5℃ welding temperature
Heating time = pipe diameter (milímetros)/20 x 1.5 seconds
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

Innovative UMpplication of PEX pipeline
- Technological
First generation: Peroxide crosslinking (PEXA)
Generation 2: Silane crosslinking (PEXB)
Electron Beam Irradiation Crosslinking (PEXC) Cano
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 System | PVC requirements | PPR standard | PEX test method |
| European Union | EM 14522:2009 | EN ISO 15874 | EN ISO 15875 |
| United States | ASTM D1785 | ASTM F2389 | ASTM F876 |
| China | GB/T 10002.12006 | GB/T 18742.22017 | CJ/T 1752002 |
| Middle East | SASO 1993 | GSO 1893 | ES 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)
Fornecedor
Luoyang Datang Energia Tech Co., Ltda. é um fabricante chinês líder especializado em tubos e acessórios de plástico de alta qualidade. Equipada com linhas de produção automatizadas de última geração e apoiada por uma equipe de 200 profissionais, oferecemos uma extensa linha de produtos que compreende mais de 150 types of plastic pipes and fittings designed for water supply and drainage systems, transmissão de gás, e sistemas de aquecimento de piso. Our main products include PVC Pipes and Fittings, Educação Física (PEAD) Tubos e conexões, Tubos e conexões PPR, e tubos de aquecimento de piso PEX.
Should you have any inquiries regarding our Healthy PPR Pipes and Fittings, por favor não hesite em contactar-nos!
Tel.:0086-183 3790 0677
Conversamos: 0086-183 3790 0677
Whatsapp: 0086-183 3790 0677
E-mail: vendas@pipesandfittings.net






