Technical Specifications

• Advantages
• Applications
• Standards
• Tech parameters
• Dimensions
• Connections

• Entirely corrosion-resistant
• A strong barrier against oxygen and light
• Inherent stability and high bend flexibility
• Excellent hydrostatic stress performance
• Lightweight
• Less pressure loss is ensured by a smooth inner wall
• Up to 25 years of service life
• Both overlapping and butt welding are available

RIFENG Multilayer plumbing system can be used in the following applications: LPG vapor, natural gas, and natural gas liquids.

EN ISO 21003 - Multilayer piping systems for hot and cold water installations inside buildings
ASTM F1281 - Standard Specification For Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe.
BRL-K536 E - Plastics piping systems of PE-X/Al intended for the transport of cold and heated drinking water 
DVGW W 534 (P) - Pipe Connectors and Pipe Joints in Drinking Water Installation
DVGW W 542 - COMPOUND PIPES IN THE DRINKING WATER INSTALLATION; REQUIREMENTS AND TESTING
DVGW W 270 - A method for the assessment of enhancement of microbial growth on non-metallic materials in contact with drinking water
UBA KTW - about Hygienic property of material odor test
UBA ELASTOM - Guideline for hygienic assessment of elastomers in contact with drinking water
AS 4176.2 & 3 - Multilayer piping for pressure applications - Multilayer piping systems for hot and cold water plumbing applications- PIPES & FITTINGS
XP P41-250 - Effect of materials on the quality of water intended for human consumption - Organic materials
NSF /ANSI /CAN 61 - Health Effects of Drinking water system components

TYPE	Multilayer Pipe
Overlapped welded	A(PE-AL-PE)	B1 (PEX-AL-PEX)	B (PERT-AL-PERT)	C (PE-AL-PE)
Roughness(mm)	0.0007	0.0007	0.0007	0.0007
Melting point (℃)	135	－	127	127
Density (g/cm3)	0.941-0.959	0.926-0.959	0.926-0.940	0.941-0.959
Modulus of elasticity (MPa)	7200	7200	7200	7200
Thermal conductivity  (w/mK)	0.45	0.45	0.45	0.45
Coefficient of thermal expansion (mm/mK)	0.025	0.025	0.025	0.025

 

Material	Test item	Requirement
Polyethylene	Density	HDPE：0.941~0.959 g/cm3 MDPE：0.926~0.941 g/cm3
(PEX)	Melt flow index	HDPE、MDPE≥0.1 g/10min(190，2.16kg)
	Tensile strength	HDPE≥21MPa；MDPE≥14MPa
	Enlongation	≥400%
	Vicat soft point	Vicat soft point≥105℃
	Cross-linking degree	≥65%
	ESCR	≥165h
Color masterbatch	Moisture content	≤0.15%
	Appearance	Uniform granual
	Volatile content	≤0.5%
catalyst	Density	≥0.93 g/cm3
	Melt flow index	≥0.9 g/10min（190℃，5.00kg）
	Volatile content	≤0.35%
Adhesive resin	Appearance	Uniform granual
	Density	≥0.926 g/cm3；
	Melt flow index	2.0~6.0 g/10min（190℃，2.16kg）
	Vicat soft point	Vicat soft point≥105℃
	T peeling strength	≥70N/25mm
Aluminum	Surface quality	Water brush test≥class
	Tensile strength	105MPa～125MPa
	Appearance	Without oil on surface
	Hardness(HV)	28～33
	T peeling strength	Minimum value≥60N/25mm

Nominal size(D x e)		14×2.0	16×2.0	18×2.0	20×2.0	25×2.5	32×3.0	40x4.0	50x4.5	63x6.0	75x7.5
Outside diameter (mm)		14	16	18	20	25	32	40	50	63	75
Tolerance of Outer diameter  (mm)	Min	14.00	16.00	18.00	20.00	25.00	32.00	40.00	50.00	60.60	70.70
	Max	14.20	16.20	18.20	20.20	25.20	32.20	40.40	50.50	63.00	75.00
Inside diameter(mm)		10	12	14	16	20	26	32	41	51	60
Tolerance of Inner diameter (mm)	Min	9.90	11.90	13.90	15.90	19.90	25.90	30.90	39.40	49.30	57.70
	Max	10.20	12.20	14.20	16.20	20.20	26.20	31.90	40.80	50.80	59.70
Pipe thickness (mm)		2	2	2	2	2.5	3	4	4.5	6	7.5
Tolerance of pipe thickness (mm)	Min	2.00	2.00	2.00	2.00	2.40	2.90	4.00	4.50	6.00	7.50
	Max	2.25	2.25	2.25	2.25	2.70	3.20	4.60	5.20	6.80	8.50

Compression connections:
This fitting allows for the connection of multilayer pipes. On the coupling ends, the union with the polyethylene inner tube is sealed by O-rings placed on the removable insert that is introduced into the fitting body and the tube. The connection is tightened by the nut with a wrench.

Press connections:
Use special tools, phisically press a connection onto the pipe to make an impermeable connection or seal. RIFENG provide 4 different press fittings.
F5 used with U profile crimper
F9 (leakage indicate) used with TH profile crimper 
F17 used with U, TH, H, RFZ profile crimper
F18 (leakage indicate) used with U, TH, H, RFZ profile crimper

Product Overview

• Multilayer Pipe
• Compression Fittings
• Manifolds
• Nipple
• Press Fittings - TH Profile
• Press Fittings - U Profile
• Tools and Accessories

• 
  HDPE AL HDPE (A Series)

  
  PERT AL PERT (B Series)

  
  PERT AL PERT (B Series)
• 
  Elbow

  
  Female elbow

  
  Female straight coupling

  
  Female tee

  
  Male straight coupling

  
  Male tee

  
  Reducing coupling

  
  Reducing elbow

  
  Straight coupling

  
  Tee

  
  Wall plated Female Elbow
• 
  Brass bar manifolds FS

  
  Brass linear manifolds FS3

  
  Brass manifold with ball valves FS5

  
  Brass manifold with stop valves FS4

  
  Stainless steel bar manifold FS2
• 
  Reducing demountable

  
  Straight demountable elbow

  
  Straight demountable

  
  Straight female

  
  Straight male
• 
  Demountable female straight coupling

  
  Elbow

  
  Female elbow

  
  Female straight coupling

  
  Female tee

  
  Male elbow

  
  Male straight coupling

  
  Reducing coupling

  
  Reducing elbow

  
  Reducing tee

  
  Tee

  
  Wall plated female elbow
• 
  Male elbow

  
  Assembly double fittings

  
  Copper spigot adapter

  
  Demountable Female straight coupling

  
  Double wall plated female elbow

  
  Elbow

  
  End cap

  
  Female elbow

  
  Female straight coupling

  
  Female tee

  
  Male straight coupling

  
  Male tee

  
  Reducing coupling

  
  Reducing elbow

  
  Reducing tee

  
  Straight coupling

  
  Tee

  
  Wall plated female elbow
• 
  Desk reamer

  
  Electric reamer

  
  External bending spring

  
  Integral manual pressing clamp

  
  Internal bending spring

  
  Lengthened T reamer

  
  Manual pressing clamp and Jaw

  
  Opening aluminium socket

  
  Pipe bending tool

  
  Pipe cutter

  
  Pipe cutting tool

  
  Plastic reamer

  
  Plastic socket

  
  T reamer

• Warranty
• Project Refferences

• • We offers a maximum warranty to our products.

    25-year warranty

• 

  • 

  Noah Garden Apartment
  

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  Developer: Noah Real Estate
  Location: Gurd Shola
  Year: 2018
  Product: Multilayer Plumbing

  
  

  • 

  Afroville Diplomatic Apartment 3 Blocks G+13 Building
  

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  Developer: Noah Real Estate
  Location: Atlas
  Year: 2017
  Product: Multilayer Plumbing

  
  

  
  

  • 

  Dodi Extension Tower
  

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  Developer: Noah Real Estate
  Type: Residentia
  Year: 2017
  Product: Multilayer Plumbing

  
  

  • 

  Elilta mix Use G+20 Building
  

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  Developer : Eililta Real Estate
  Location: Kera
  year: 2019
  Product:Multilayer Plumbing

  
  

  
  

  • 

  Kazanchis, Ethiopia
  

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  Kazadis Plaza Mix-use G+19 Buidling
  Type: Commercial
  Year: 2019
  Product: Multilayer Plumbing System

  
  

  

  • 

  New Hope Apartment 6 Blockes G+17 building
  

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  Developer : New Hope Real Estate
  Location : Lebu
  Year : 2019
  Product : Multilayer Plumbing

  
  

  • 

  Sikamas mix use 2 block G+11 building
  

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  Developer :Sikamas Real Estate
  Location : Nefas silk lafto
  Year : 2019
  Product : Mulitlayer Plumbing