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PEX PLUMBING SYSTEM

Manufactured with the cross-linked polyethylene,Rifeng Pex pipes boost more elaborated polyethylene performances without losing the excellent properties of thermoplastics. Offering excellent corrosion resistance, incredible flexibility and unusual toughness, our PEX pipes allow fastest and easiest pipes installation.

Technical specification

Advantage:
• Resistant to harmful chemicals and meets the CL5 classification of chlorine resistance
• Certified to NSF/ANSI 61 and NSF/ANSI 372 for safe distribution of potable water and free of lead
• Flexible and available in long coils that needs less fittings than rigid tube
• Light in weight
• Smooth inner wall ensures less pressure loss
• Service life up to 50 years


Application: 
RIFENG PEX plumbing system can be used in following applications:
Hot and cold water distribution.
Standards:
ISO 15875 - PLASTICS PIPING SYSTEMS FOR HOT AND COLD WATER INSTALLATIONS - CROSSLINKED POLYETHYLENE (PE-X)
ASTM F876 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing
ASTM F877 - Standard Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems
NSF /ANSI /CAN 61 - Health Effects of Drinking water system components
AS 2492 - Cross-linked polyethylene (PE-X) pipes for pressure applications
XP P41-250 - Effect of materials on the quality of water intended for human consumption - Organic materials


Certificates:
NSF - refers to ASTM F876/877 and NSF /ANSI /CAN 61
ACS - refers to XP P41-250
WaterMark - refers to AS 2492
ISO 9001:2015 – “Quality management system”


  
 
TYPE PEX Pipe
Roughness  0.0007 mm
Density 0.926~0.959 g/cm3
Modulus of elasticity 600~800 MPa
Thermal conductivity 0.40~0.42 w/mK
Coefficient of thermal expansion  0.20 mm/mK
ASTM
Size Length per coil (ft) Straight length(ft) O.D. I.D.
1/8 250/300/500/1000 10/20 0.250'' 0.149''
1/4 250/300/500/1000 10/20 0.375'' 0.241''
3/8 250/300/500/1000 10/20 0.500'' 0.350''
1/2 100/250/300/500/1000 10/20 0.625'' 0.475''
3/4 100/250/300/500/1000 10/20 0.875'' 0.671''
1 100/300/500 10/20 1.125'' 0.682''

ISO
Nominal size DN/OD PIPE SERIESWall Thickness
  S6.3 S5 S4 S3.2
12 - 1.3 1.4 1.7
16 1.3 1.5 1.8 2.2
20 1.5 1.9 2.3 2.8
25 1.9 2.3 2.8 3.5
32 2.4 2.9 3.6 4.4
40 3.0 3.7 4.5 5.5
50 3.7 4.6 5.6 6.9
63 4.7 5.8 7.1 8.6
Crimp/Clamp connections
Used to connect ASTM F1807 brass fitting or ASTM F2159 plastic fitting with PEX tubing. And it is one of the most commonly used connection methods in US market.

Press connections
Use special tools, phisically press a connection onto the pipe to make an impermeable connection or seal with no O-ring design.

ASTM F1960 Expansion connections
Using a special expansion tool, expand the pipe with the reinforce ring until the pipe is expanded enough to insert a F1960 fitting.

 
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