Puka Whakapā

Ko tehea te mea pai? PVC Pipe vs PEX Pipe vs PPR Pipe

I roto i te ahumahi hou, paipa PEX, Ko te paipa PVC me te paipa PPR he maha nga momo tono, i tenei ra ka korero tatou "Me pehea te whiriwhiri i nga paipa?

Comparison o Core Paramere

TohutohuPVC paipaPPR paipaPaipa PEX
Rauemi CompositionPVC + stabilizerRandom copolymer polypropyleneCrosslinked polyethylene
Operating Temperature0-60 ℃20-95 ℃70-110 ℃
Te pehanga Rto tatou1.0MPa(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 / ℃
Ratonga Life2550 tau50 + tau5070 tau
Connection MethodAdhesive connectionWehenga weriweri weraClamp 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 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)

  • Taupāngas

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

Te whakamakuku ahuwhenua: 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

Taketake “sandwichpipe 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 (mm)/20 x 1.5 seconds

Cooling time > Pipe diameter (mm)/10 meneti

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) Paipa

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 UnionIN 14522:2009I ISO 15874I ISO 15875
United StatesASTM D1785ASTM F2389ASTM F876
HainaGB/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

PVC paipa:

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)

Kaiwhakarato

Luoyang Datang Energy Tech Co., Ltd. Ko te kaihanga Hainamana rangatira e tohunga ana ki nga paipa kirihou kounga teitei me nga taputapu. Kua rite ki nga raina whakaputa aunoa hou me te tautoko e te roopu o 200 ngaio, ka tukuna e matou he raina hua nui kei roto 150 types of plastic pipes and fittings designed for water supply and drainage systems, tuku hau, me nga punaha whakamahana papa. Kei roto i a maatau hua matua Nga Paipa PVC me nga taputapu, PE (HDPE) Nga paipa me nga taputapu, Paipa PPR me nga taputapu, me nga Paipa Whakawera Papa PEX. 

Mena kei a koe etahi patai mo ta maatau Paipa PPR Hauora me nga taputapu, kaua koe e mangere ki te whakapā mai!

Waea:0086-183 3790 0677

Wechat: 0086-183 3790 0677

Whatsapp: 0086-183 3790 0677

Īmēra: sales@pipesandfittings.net

Nga Whakahoutanga Panui

Whakauruhia to wahitau imeera ki raro ka ohauru ki ta maatau panui