MUNICIPEX

PEXa Municipal Piping

The Story Behind the Pipe

As a global leader in polymer solutions involved in PEXa manufacturing since 1968, we take pride in delivering water and sewer service lines that exceed expectations and deliver properties that stand true for years. What started as an idea quickly turned into a product that enhances lives with unmatched properties.

Manufactured in the United States using our proprietary PEXa extrusion process, MUNICIPEX® is backed by more than 20 years of experience and a 25-year limited warranty. Discover all the features and benefits our municipal water and wastewater lines have to offer.

Click here to schedule a free demo

How it Works

Click images for expanded view: 

MUNICIPEX Water Service Line Diagram
MUNICIPEX Force Main Diagram
MUNICIPEX Pre-insulated Diagram

Products

Water Service

MUNICIPEX is engineered specifically for water service line applications that run from the water main to residential and commercial structures. It is manufactured by REHAU using our high-pressure peroxide method for crosslinked polyethylene (PEXa). MUNICIPEX is offered in diameters 3/4 to 2 in. and in coil lengths of up to 1,000 ft (304.8 m).

More Details

Force Main

Specifically designed for wastewater applications, MUNICIPEX Force Main is color-coded with a green coating and withstands harsh conditions without compromising performance or pressure. Manufactured using the same PEXa process as our water service line, MUNICIPEX Force Main is offered in diameters 1 1/4 to 2 in. and in coil lengths of up to 1,000 ft (304.8 m).

More Details

Pre-insulated

MUNICIPEX Pre-insulated is specially designed for water distribution in cold climates that require an extra level of protection from freezing, or when laying pipe below the frost line is not possible. MUNICIPEX Pre-insulated consists of PEXa carrier pipe surrounded by a solid layer of CFC-free polyurethane foam insulation; a corrugated LDPE outer casing and a conduit for heat trace wires. MUNICIPEX Pre-insulated is offered in diameters 1 and 2 in. and in coil lengths of up to 300 ft (91.4 m).

More Details

Benefits

EASE OF INSTALLATION

A flexible, durable, cost-effective alternative to copper and other materials, MUNICIPEX offers fast and easy installation. Whether it’s new construction, replacements or repairs, MUNICIPEX is ready to help tackle your next project.


Lightweight & Flexible

Lightweight and Flexible

MUNICIPEX can bend 5 times its outside diameter (OD) and is up to 70% lighter than copper, making it easy to carry and uncoil.

Kink Resistant

Kink Resistant

More flexible than HDPE and copper, MUNICIPEX resists kinking. If kinked, MUNICIPEX does not require a repair clamp, nor does it need to be cut out.  

Lightweight & Flexible

Size and Length
MUNICIPEX is supplied in coil lengths of up to 1,000 ft (304.8 m). Produced in CTS (Copper Tube Size), it is compatible with AWWA C800 fittings as well as electrofusion fittings.
Ease of Installation

No Specialized Tools
Standard pipe wrenches are used with compression-joint connections.

For additional information, please refer to the REHAU MUNICIPEX Installation Guide or contact your regional REHAU sales office.


LONGEVITY

As an engineered solution that optimizes performance and longevity, MUNICIPEX is equipped to handle even the toughest environments. From corrosion to creep resistance, rest assured that MUNICIPEX will stand true for years.


Corrosion Resistant


Erosion and Corrosion Resistant
Based on PEXa properties, MUNICIPEX resists corrosion in aggressive water conditions.

Mineral Build-up Resistant


Mineral Build-up Resistant
Due to the smooth inner walls, MUNICIPEX is resistant to scaling and internal deposits.


Chlorine Resistant



Chlorine Resistant
MUNICIPEX exceeds the requirements of ASTM F876 for chlorine resistance for cold-water service lines, when tested in accordance with ASTM F2023.

Resiliancy

Creep Resistant
Designed to withstand pressure over time, MUNICIPEX will not decrease in pressure rating over a long period of time.

Chemical Resistant

Chemical Resistant
MUNICIPEX is resistant to a wide range of chemicals.


RESILIENCY

MUNICIPEX is designed to withstand harsh conditions without compromising performance. With the ability for native backfill and UV resistance, slow crack growth and abrasions, MUNICIPEX is the preferred choice when it comes to resiliency and environmental sustainability.


Impact Resistant

Impact and Abrasion Resistant
The molecular structure of MUNICIPEX allows the pipe to absorb kinetic energy from hard particles. It resists deformation which increases its impact and abrasion resistance.
Slow Crack Growth Resistant

Slow Crack Growth Resistant
MUNICIPEX also has higher resistance to slow crack growth than other polymer piping materials due to the molecular structure of the linked polymer chains.
Native Backfill

Native Backfill 
Due to its high degree of crosslinking which provides toughness for jobsite use and longevity, MUNICIPEX does not require sand bedding and can be used with native soil, reducing time and cost.
Freeze Break Resistant

Freeze-break Resistant
MUNICIPEX resists splitting when frozen due to the expansion properties of PEXa.
UV Resistant


UV Resistant
UV resistant up to 1 year based on testing to ASTM F2657.

Low Carbon Footprint

Lower Carbon Footprint
MUNICIPEX requires less energy to produce and leaves a smaller overall carbon footprint than copper. This is based on all the processes associated with product life cycle.

ADVANTAGES OVER COPPER & HDPE

MUNICIPEX is a clean, cost-effective PEXa municipal piping alternative that surpasses many of the performance properties of copper and HDPE. Unlike other municipal lines that need to be repaired or replaced frequently, MUNICIPEX is resistant to corrosion and mineral buildup, chlorine and chemicals, freezing, as well as impact and abrasion.


[INFOGRAPHIC] Advantages Over Copper > 


[INFOGRAPHIC] Advantages Over HDPE > 

Photo Gallery

INSTALLATION

MUNICIPEX is supplied in long coils to reduce the number of couplings, minimizing waste and speeding up installation. At five-to-six times lighter in weight than copper, MUNICIPEX is easier and safer to handle. It is also easier to plan an installation as consecutive footage marks every 3 ft (0.9 m) help indicate the length and how much material is available. Allowing a slight curve while laying MUNICIPEX in the trench is all that is required to accommodate expansion and contraction.

Using a squeeze-off tool to temporarily stop the water flow through MUNICIPEX will not cause permanent damage or deformation to the service line, and is the fastest and cleanest way to temporarily stop flow through the pipe when replacing a curb stop or other shut-off valve.


Follow all handling and installation instructions found on the packaging and in the installation guide.

For service line and underground applications, it is the responsibility of the installer to ensure fittings selected meet local jurisdiction codes. For additional information, please refer to the REHAU MUNICIPEX Installation Guide or contact your regional REHAU sales office.


Minimum Burst Pressure Requirements

Temperature and Pressure Ratings

475 psi @ 73.4°F (3,310 kPa @ 23°C)

210 psi @ 180°F (690 kPa @ 82.2°C)

180 psi @ 200°F (550 kPa @ 93.3°C)

200 psi @ 73.4°F (1,380 kPa @ 23°C)*

160 psi @ 73.4°F (1,105 kPa @ 23°C)

100 psi @ 180°F (690 kPa @ 82°C)

Temperature-pressure Capabilities

*Continuous-use ratings using design factor of 0.63.  See REHAU Technical Bulletin 239 for clarification.

SDR9 Copper Tube Sizes (CTS)

MUNICIPEX is produced to CTS (Copper Tube Size) and is compatible with AWWA C800 fittings.

Tapping

2 in. MUNICIPEX can be tapped with service saddles. See REHAU Technical Bulletin 259 for clarification.

Tools

Standard pipe wrenches are used with compression-joint connections. No specialized tools are required.

Industry Standards

MUNICIPEX Water Service LineMUNICIPEX Force MainMUNICIPEX Pre-insulated
  • Certified to AWWA C904
  • Certified to CSA B137.5
  • Certified to ASTM F876
  • Certified to NSF/ANSI Standard 14 and 61 (NSF-pw-g)
  • Tested in accordance with UV resistance to ASTM F2657 for a period of 1 year
  • Exceeds chlorine resistance requirements of ASTM F876, when tested in accordance with ASTM F2023
  • Compatible with AWWA C800 valves and fittings as well as ASTM F1055 electrofusion fittings

Product Submittal

Specification

  • Certified to AWWA C904
  • Certified to CSA B137.5
  • Certified to ASTM F876
  • Compatible with AWWA C800 valves and fittings as well as ASTM F1055 electrofusion fittings










Product Submittal

Specification

  • Certified to AWWA C904
  • Certified to CSA B137.5
  • Certified to ASTM F876
  • Certified to NSF/ANSI Standard 14 and 61 (NSF-pw-g)
  • Tested in accordance with UV resistance to ASTM F2657 for a period of 1 year
  • Exceeds chlorine resistance requirements of ASTM F876, when tested in accordance with ASTM F2023
  • Compatible with AWWA C800 valves and fittings


Product Submittal

Projects

Fauquier County WSA

Fauquier County WSA, Virginia

When a municipality needs to replace aging water mains, the project can take months, but residents clearly cannot go that long without water service. The Fauquier County Water and Sanitation Authority (FCWSA) used a creative solution while upgrading the water main in the Virginia town of Bealeton. Crews laid out 10,000 ft (3,048 m) of 2-in. REHAU MUNICIPEX PEXa water service pipe while using an above-ground temporary water main.

Read More

REHAU MUNICIPEX PI - City of Thompson Project Profile

City of Thompson, Manitoba, Canada

A small mining town located in northern Manitoba called Thompson may not be your first guess for a Canadian city that would pioneer the use of a cutting-edge technology for its water supply infrastructure. But Thompson became the first city in Canada to use REHAU MUNICIPEX Pre-insulated PEXa water service pipe when it installed about 3,700 ft (1,127 m) in September 2015. 

Read More


City of St. Zotique, Quebec, Canada

After having installed a MUNICIPEX water service line for a three-story condominium in St. Zotique, Quebec, the city found a problem with the curb valve that required them to isolate the water main. With traditional copper service line, the repair would have shut down water service to a number of customers while costing the city valuable time and money. 

Read More


South Blount Utility District, Tennessee

Seeking an alternative to copper water service pipe, a team at the South Blount Utility District in Tennessee learned about REHAU MUNICIPEX crosslinked polyethylene (PEXa) piping, and decided to test the pipe in a gravel bed outside the utility's service bay entrance. For five months, 15 to 30 half-ton pickup trucks ran over the gravel area on a daily basis. The team noted that in addition to maintaining pressure, the pipe exhibited no major indentations and only minor scratches, and had not been permanently flattened in any areas.

Read More

Book a Demo

Do you have a municipal project coming up?  Ready to try MUNICIPEX? Reach out to one of our experts. 

Click here