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RIIFO PP-R Plumbing System is non-toxic and hygienic. So far, RIIFO has provided various PP-R pipes and fittings certified by organizations like DVGW, NSF globally. In addition, RIIFO has launched the PP-R Large Flow Series, which provides more hygienic and safer drinking water to customers.

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Technical Specifications

  • 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 metal pipe.

    • The reliable and convenient connecting pipes and fittings by homogeneity melt.

    • Notice free at high flow rates.

    • Fusion technology's speed and ease of use.

    • Significant time and labour savings.

    • A long lifespan up to 25 years under normal conditions.



  • Applications:
    RIFENG PP-R piping system can be used in following applications:

    • Cool and hot water distribution

    • Pipes for connecting various types of low-temperature heating systems

    • Pipes for solar energy system heating and cooling settings

    • Cold water piping for air conditioners

    Application areas:

    • Potable water, hot and cold water, chemicals, irrigation

    • Apartments, condominiums, and public housing

    • Commercial shopping malls, as well as office buildings

    • Chemical and food processing manufacturing plants

    • Hospitals

    • Schools, laboratories and chemical sewerage

    • Hotels and resorts

  • Standards:
    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

  • Reliable homogeneous connections
    Homogeneity melting provides reliable connection strength and sealing property between PP-R pipes and PP-R fittings.

    Metal thread connection

    Rifeng also provides metal thread connection methods to achieve connection conversion between different scenarios. 

    Rifeng PP-R fittings have an unique structure - swallow tailed structure on the metal insert, which can eliminate the risk of leakage from gaps caused by different thermal conductivity performances of brass and plastic.
    Rifeng holds the exclusive patent to manufacture these fittings.

    SWALLOW TAILED NOTCH                                36 BITING POINTS                                BUTTON SAFETY RING                                           
    Avoid leakage risk caused by                                Anti-axial slip between metal                  Anti-over-twist when installing
    different thermal expansions.                                 insert and the plastic part.                      devices with threads.


Product Overview

  • S2.5 Monolayer pipe

    S3.2 Monolayer pipe

    S4 Monolayer pipe

    S5 Monolayer Pipe

    S2.5 Double layer pipe

  • Straight coupling

    Reducing coupling

    S Straight coupling


    Elbow (45°)

    Reducing elbow

  • Pipe cutter

    Pipe cutting tool

    Hot fusion machine

    Hot melting mould head

    Plastic socket (low)

    Plastic socket (high)
    • We offers a maximum warranty to our products.

      25-year warranty

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Contact Us

  • +251 901-66-9977
    +251 901-66-9988
    +251 116-68-3393

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