DESCRIPTION
Watts PEX Pipes (WaterPEX, PlumbFLOW) and Watts PEX Barrier Pipes (RadiantPEX, RadiantPEX+, RadiantFLOW) are manufactured from a crosslinked high density polyethylene (HDPE) for use in hot and cold water distribution systems.
RATINGS
| ASTM E84 - Surface Burning Characteristics |
| Product |
Size |
Flame Spread
Classification |
Smoke Developed Classification |
| Watts PEX Pipes1 |
1/4 to 2 in. |
<25 |
<50 |
| Watts PEX Barrier Pipes1 |
3/8 to 1-1/2 in. |
<25 |
<50 |
| CAN/ULC-S102.2 - Surface Burning Characteristics |
| Product |
Size |
Flame Spread
Classification |
Smoke Developed Classification |
| Watts PEX Pipes1 |
1/4 to 2 in. |
<25 |
<50 |
| Watts PEX Barrier Pipes1 |
3/8 to 1-1/2 in. |
<25 |
<50 |
1Ratings apply when tubing is field insulated with fiberglass insulation conforming to the following:
- ASTM E84 Listed
- Flame Spread Index of <25
- Smoke Developed Index of <50
- Wall thickness – minimum 1/2”
FIRE RATINGS
| Test Standard |
Rating |
Design Number |
ASTM E119
CAN/ULC-S101 |
2-hour |
WRC/DWP 120-01 |
ASTM E119
CAN/ULC-S101 |
1-hour |
WRC/DWP 60-01 |
ASTM E119
CAN/ULC-S101 |
1-hour |
WRC/DWP 60-02 |
The Watts PEX Pipes include product names WaterPEX and PlumbFLOW; the Watts PEX Barrier Pipes include product names RadiantPEX, RadiantPEX+ and RadiantFLOW.
