Rifeng PP-R plumbing system, made out of high-quality polypropylene random copolymer, can be applied in both residential and commercial buildings.

Technical specification

Advantages :
• Applied for potable water pipeline system with hygienic and non-toxic features.
• High temperatures and high pressure resistant.
• Heat preservation and energy saving during the flow.
• Lighter and more smoother than the mental pipe.
• The reliable and convenient connecting pipes and fittings by homogeneity melt.
• Notice free at high flow rates.
• Speed and ease of fusion technology.
• Extensive savings in time and labour.
• A long lifespan up to 50 years under normal conditions.

RIFENG PP-R piping system can be used in following applications:
• Distribution for cool and hot water
• Pipes to connect kinds of low temperature heating system
• Pipes for heating and cooling settings in solar energy system
• Cold water piping for air conditioners

Application areas:
• Potable water, hot and cold water, chemicals, irrigation
• Residential apartments, condominiums, public housing
• Commercial shopping centers, office buildings
• Industrial plants dealing with chemicals, food processing
• Hospitals
• Schools, laboratories and chemical sewerage
• Hotels and resorts

NSF /ANSI /CAN 61 – about Health Effects of Drinking water system components
DVGW W 544 – about PP-R pipe general mechanical requirement
DVGW W 270 – about Hygienic property of material
UBA KTW – about Hygienic property of material odor test
DIN 8077 – about Polypropylene pipe dimension
DIN 8078 – about Polypropylene pipe general quality requirement and testing
EN ISO15874 – about Plastic piping system for hot and cold water installation

NSF – from USA, refers to NSF /ANSI /CAN 61
DVGW – from German, refers to DVGW W 544,UBA KTW,DVGW W 270
AENOR – from Spain, refers to EN ISO 15874
CE – from Europe, refers to EN ISO 15874
ISO 9001:2015 – “Quality management system”
ISO 14001:2015 – “Environmental management system”
ISO 45001:2018 – “Occupational health and safety management system”

TYPE PPR Pipe PVC Pipe Copper pipe
Roughness(μm) 0.4~1.0μm       1.5mm ≥2.0μm
Melting point (℃) 145 No obvious melting point, softening point around 85℃ >900
Density (g/cm3) 0.89~0.91 1.42 8.96
Modulus of elasticity (MPa) 800 2900-3400 105-137 GPa
Thermal conductivity (w/mK) 0.24 0.16 388~391
Coefficient of thermal expansion (mm/mK) 0.15 8*10-5 0.017
Property Test Method  Unit  Value
Melt Flow Rate
MFI 190/5 ISO 1133 g/10 dk.                                                                                       0.5
MFI 230/2.16 ISO 1133 g/10 dk. 0.3
MFI 230/5 - g/10 dk. 1.5
Density at 23℃ ISO 1183 g/cm3 0.9
Tensile Stress at Yield ISO 527 Mpa 25
Elongation at Break ISO 527 % >50
Modulus of Elasticity, Tensile Test ISO 527 N/mm2 900
Impact Strength (Charpy)
23℃ ISO 179/1eU Kj/m2 No failure
0℃ ISO 179/1eU Kj/m2 No failure
-10℃ ISO 179/1eU Kj/m2 No failure
Notched Impact Strength (Charpy)
23℃ ISO 179/1eA Kj/m2 20
0℃ ISO 179/1eA Kj/m2 4
-10℃ ISO 179/1eA Kj/m2 3
Coefficient of Linear Thermal Expansion DIN 53 752 K-1 1.5×10-4
Thermal Conductivity at 20℃ DIN 52 612 W/mK 0.24
Specific Heat at 20℃ Adiabatic Calorimeter Kj/kg K 2
Standard Dimension Ratio (SDR)
RIFENG PPR pipe provide the following SDR-sizes:
  1. SDR6
  2. SDR7.4
  3. SDR9
  4. SDR11
Dimensions: 20mm,25mm,32mm,40mm,50mm,63mm,75mm,90mm,110mm,160mm
Safe homogeneous connections:
Homogeneity melting provides reliable connection strength and sealing property between PP-R pipe and PP-R fittings.

Metal thread connection:
Rifeng also provides metal thread connection methods to achieve connection conversion between different scenarios.
The swallow-tailed structure ensures zero leakage,excellent air-proof performance and safer connections.