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 is lead-free
• Flexible and available in long coils that need fewer fittings than rigid tubes
• Lightweight
• Smooth inner wall ensures less pressure loss
• Service life up to 25 years
Application:
RIFENG PEX plumbing system can be used both in hot and cold water supply.
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 SERIES Wall 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.