The Pex-A Carrier pipe is NSF61 certified and suitable for potable / sanitary water applications
Two pipes inside a single insulated casing
Direct Burial, Dual Insulated PEX Pipe comes in a range of sizes including ¾”, 1”, 1- ¼”, and 1-1/2”. This pre-insulated PEX pipe is designed to minimize heat loss or gain when transferring liquids between different locations. It is a popular choice for efficiently transferring heated water from outdoor boilers to homes and other structures, including additional buildings. Additionally, it can be used in district or community heating systems, industrial processing facilities, and cold liquid transfer systems. Our dual PEX is sold per foot and ensures only a 1-degree Fahrenheit loss per 100 feet, making it a reliable and efficient solution.
| Nominal pipe size |
Carrier pipe OD |
Carrier pipe ID |
Carrier pipe wall thickness |
Jacket pipe OD |
Standard/ Maximum coil lengths* |
Minimum bending radius |
Weight |
| in | in (mm) |
in (mm) |
in (mm) |
in (mm) |
ft (m) |
ft (m) |
lb/ft (kg/m) |
| 2 x ¾ | 2 x 0.98 (2 x 25) |
0.784 (20) |
0.098 (2.5) |
4.3 (110) |
328/ 656 (100/200) |
3.5 ( 1.1) |
1.4 (2.1) |
| 2 x 1 | 2 x 1.26 (2 x 32) |
1.032 (26.2) |
0.114 (2.9) |
4.3 (110) |
567/1,134 (173/246) |
3.5 (1.1) |
1.5 (2.2) |
| 2 x 1¼ | 2 x 1.57 (2 x 40) |
1.280 (32.6) |
0.145 (3.7) |
4.9 (125) |
328/ 656 (100/200) |
4.0 (1.2) |
1.8 (2.7) |
| 2 x 1 ½ | 2 x 1.97 (2 x 50) |
1.608 (40.8) |
0.181 (4.6) |
6.3 (160) |
328 (100) |
5.2 (1.6) |
2.8 (4.1) |
Single Insulated PEX Pipe:
Our Single Insulated PEX Pipe is designed for efficient liquid transfer while minimizing heat loss or gain. Available in sizes including ¾”, 1”, 1-¼”, and 1-½”, this pre-insulated PEX pipe features a durable insulated casing that protects the pipe and enhances energy efficiency. Ideal for direct burial applications, it is commonly used for transferring heated water from outdoor boilers to homes, additional buildings, or even for district heating systems. This pipe also works well for industrial processing and cold liquid transfer systems. Sold by the foot, our single insulated PEX ensures long-lasting performance and reliable thermal protection.
| Nominal pipe size |
Carrier pipe OD |
Carrier pipe ID |
Carrier pipe wall thickness |
Jacket pipe OD |
Standard/ Maximum coil lengths* |
Minimum bending radius |
Weight |
| in | in (mm) |
in (mm) |
in (mm) |
in (mm) |
ft (m) |
ft (m) |
lb/ft (kg/m) |
| ¾ | 0.98 (25) |
.784 (20) |
0.098 (2.5) |
3.0 (77) |
328/984 (100/300) |
2.6 (0.8) |
.70 (1.0) |
| 1 | 1.26 (32) |
1.032 (26.2) |
0.114 (2.9) |
3.0 (77) |
328/984 (100/300) |
2.6 (0.8) |
.70 (1.0) |
| 1¼ | 1.57 (40) |
1.28 (32.6) |
0.145 (3.7) |
3.5 (90) |
328/984 (100/300) |
3.0 (0.9) |
1.9 (1.3) |
| 1½ | 1.97 (50) |
1.608 (40.8) |
0.181 (4.6) |
4.3 (110) |
328/984 (100/300) |
3.5 (1.1) |
1.3 (1.9) |
| 2 | 2.48 (63) |
2.024 (51.4) |
0.228 (5.8) |
4.9 (125) |
328/656 (100/200) |
4.0 (1.2) |
1.6 (2.4) |
| 2½ | 2.95 (75) |
2.406 (61.2) |
0.272 (6.9) |
5.5 (140) |
328 (100) |
4.5 (1.4) |
2.2 (3.3) |
| 3 | 3.54 (90) |
2.894 (73.6) |
0.323 (8.2) |
6.3 (160) |
328 (100) |
5.2 (1.6) |
2.8 (4.2) |
| 4 | 4.33 (110) |
3.544 (90) |
0.393 (10.0) |
6.3 (160) |
328 (100) |
5.2 (1.6) |
3.7 (5.5) |
PEX-Flex Temperature and Pressure
| Pipe size | Max. temperature | Max. pressure |
| in (mm) | Fahrenheit (Celsius) | P.S.I. (bar) |
| ¾ - 4 (20 - 110) | 203 (95)* | 87 (6) |
OUTDOOR WOOD FURNACES
Only a professionally manufactured insulated pipe will maximize the efficiency of an outdoor wood furnace system by keeping heat losses to a minimum. By effectively heating the house (not the ground), less fuel is required, less wood is burned producing less emissions. Whatever your budget, you simply can’t afford not to install PEX-Flex! Supplied in coils, this 2-in1 (supply and return bundled together) pipe is economical, simple to install and highly effective even in harsh soil conditions.
PEX-Flex is “self-compensating” with respect to expansion and contraction … just uncoil and snake into trench, then backfill. The pipe installs quickly and easily without solvent welding, special tools or heavy equipment resulting in a lower installed cost when compared to other insulating methods. No drainage tile, gravel fill or deep/wide trench required. PEX-Flex can be shallow buried even in high water table areas. The flexible nature of coiled PEX-Flex all but eliminates the need for joints, elbows and fittings making it a true seamless pipe system.
The PEX-Flex carrier pipe is made of plastic cross linked polyethylene (PEX) with EVAL coating which keeps oxygen from penetrating the pipe wall. The PEX is surrounded by a factory applied layer of closed cell, eco-friendly polyurethane foam – the best insulation material on the market. The whole package is encased in a tough but flexible extruded polyethylene jacket with UV stabilizer.
The pipe system is bonded … meaning the carrier pipe(s), insulation and jacket are mechanically linked to one another and move collectively during expansion/contraction. This also isolates a moisture problem to damaged area should the jacket be punctured … water cannot migrate through entire pipe system.
All PEX-Flex pipe comes equipped with a “smart” membrane between the outer casing and the insulation. This leak proof diffusion barrier prevents (cyclopentane) gas in the foam from escaping through the jacket and being replaced by atmospheric air which has inferior insulating properties – a process called “aging”. This keeps the operating performance high throughout the entire service life of the pipe.
PEX-Flex is manufactured by Logstor of Denmark, the world’s largest producer of pre-insulated pipe systems employing over 1300 people in 8 production facilities. Logstor has over 30 years experience of pre-insulating flexible PEX tubing. Urecon Ltd. distributes Logstor products throughout Canada and the US.
The Payback:
Installing PEX-Flex actually pays for itself over time*, and you're also helping to do your part to reduce emissions.
The expected yearly savings is approximately 1 1/2 cords of wood based on the following assumptions:
- An average cord of wood yields 24 million BTU's (7 MW/hr).
- The trench from the furnace to the building(s) is approximately 100 ft (30 m) long.
- The payback is based on a comparison to bare or poorly insulated piping systems. These inferior systems may be the result of using materials with insufficient insulating properties, inadequate insulation thickness, or may simply be insulation that absorbed moisture due to water ingress through the jacket or joints.
Temperature drop with dual PEX-Flex
Using 2 x 1 in x 4.3 in OD (2 x 32 mm x 110 mm OD) with following operating parameters:
- Supply temperature: 180 °F (82 °C)
- Soil temperature: 32 °F (0 °C)
| Flow | Distance | ||
| GPM (US) | 1/sec | 100 ft (30 m) | 150 ft (46 m) |
| 3 | 0.19 | 178.5°F (81.4°C) | 177.8°F (81.0°C) |
| 5 | 0.32 | 179.1°F (81.7°C) | 178.7°F (81.5°C) |
| 10 | 0.63 | 179.5°F (81.9°C) | 179.3°F (81.8°C) |
Dual PEX-Flex Dimensions
| Nominal pipe size |
Carrier pipe OD |
Carrier pipe ID |
Carrier pipe wall thickness |
Jacket pipe OD |
Standard/ Maximum coil lengths* |
Minimum bending radius |
Weight |
| in | in (mm) |
in (mm) |
in (mm) |
in (mm) |
ft (m) |
ft (m) |
lb/ft (kg/m) |
| 2 x ¾ | 2 x 0.98 (2 x 25) |
0.784 (20) |
0.098 (2.5) |
4.3 (110) |
328/ 656 (100/200) |
3.5 ( 1.1) |
1.4 (2.1) |
| 2 x 1 |
2 x 1.26 (2 x 32) |
1.032 (26.2) |
0.114 (2.9) |
4.3 (110) |
567/1,134 (173/246) |
3.5 (1.1) |
1.5 (2.2) |
| 2 x 1¼ | 2 x 1.57 (2 x 40) |
1.280 (32.6) |
0.145 (3.7) |
4.9 (125) |
328/ 656 (100/200) |
4.0 (1.2) |
1.8 (2.7) |
| 2 x 1 ½ | 2 x 1.97 (2 x 50) |
1.608 (40.8) |
0.181 (4.6) |
6.3 (160) |
328 (100) |
5.2 (1.6) |
2.8 (4.1) |
* Pipe can also be supplied to exact length required. Maximum lengths are special order.
n.b .: All core pipe sizes are metric; metric compression x imperial NPT threaded adaptors are supplied as required.
PEX-Flex Temperature and Pressure
| Pipe size | Max. temperature | Max. pressure |
| in (mm) | Fahrenheit (Celsius) | P.S.I. (bar) |
| ¾ - 1½ (20 - 50) | 203 (95)* | 87 (6) |
OTHER APPLICATIONS
feet of PEX-Flex have been installed in industrial, commercial and residential hydronic related pipe systems around the world. The pipe is used wherever energy savings are required by keeping overall heat losses (or gains) to a minimum. Typical applications include ice/snow melt systems; chilled water distribution; hot water district energy projects; chemical feed; industrial process piping and even solar heating.
Ice/Snow Melt Systems
Use PEX-Flex to run warm water from the heat source to the pad without losing heat.
Chilled Water Distribution
Use PEX-Flex to distribute centrally chilled water for air conditioning … often without joints or fittings. The highly efficient polyurethane insulation reduces heat gain from the warm soil (or ambient air temperature) greatly increasing system efficiency.
Hot Water District Energy
Use PEX-Flex to move around hot water in campus style systems … often without joints or fittings. Also ideally suited for steam condensate return.
Chemical Feed / Industrial Process Piping
Use PEX-Flex for transfer of chemicals or general process piping. Typically, joints and fittings are eliminated reducing worry of leakage … saving money when compared to traditional containment piping.
