Ultra-Rib® PVC (Open Profile OD)

PVC sewer pipe


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A Seamless Open Profile Wall with Excellent Stiffness

IPEX Ultra-Rib® is a gravity flow PVC sewer pipe with concentric reinforcing ribs that encircle the pipe to provide superior ring stiffness and performance. It is an extruded, seamless pipe made from high-grade PVC compound. The optimized profile design of our municipal open profile sewer pipe and fittings offers strength and reliability, as well as economy and superior flow rates.

Ultra-Rib install

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A Superior Sewer Pipe Solution

  • Ultra-Rib® delivers many advantages over traditional materials, as well as other plastic sewer pipes. By eliminating infiltration and exfiltration. Ultra-Rib’s 15 psi capable joints easily outperform concrete and corrugated PE joints
  • Because of the smooth inside wall of Ultra-Rib®, a Manning’s coefficient of 0.009 can be used when designing systems using Ultra-Rib® pipe. This compares with Manning’s coefficients of up to 0.023 for other materials like clay or concrete
  • PVC is highly resistant to chemical attack from any type of sewage. Hydrogen Sulphide attack, which causes millions of dollars of damage to concrete and metal infrastructure, will not affect Ultra-Rib®


Certified to the Highest Standards

PVC Gravity Flow Systems are manufactured to CSA and ASTM standards. Ultra-Rib® Pipe and Fittings are available in standard sewer sizes from (200 mm – 600 mm) (8″ – 24″) and meet CSA B182.4 and ASTM F794 standards.

Busy highway during rush hour


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Product Details


IPEX Ultra-Rib PVC Pipe is available in sizes 200mm, 250mm, 300mm, 375mm, 450mm, 525mm and 600mm (8″ – 24″).


Ultra-Rib PVC Pipe shall be made of PVC compound having a cell classification of 12454B as defined in ASTM D1784.


The pipe shall be extruded with a smooth interior and with solid reinforcing ribs on the exterior at right angles to the pipe. The space between any two ribs serves as a gasket race. Ultra-Rib PVC pipe and fittings shall be certified to CSA B182.4 “Profile (Ribbed) PVC Sewer Pipe and Fittings”, and shall meet the requirements of ASTM F794 “Standard Specification for Poly (Vinyl Chloride) (PVC) Ribbed Gravity Sanitary Pipe and Fittings Based on Controlled Inside Diameter”.


Pipe stiffness must be 320 kPa (46 lbs/in of sample length per inch of deflection) at 5% vertical deflection when tested according to ASTM D2412.


Gaskets for use with Ultra-Rib pipe are manufactured from EPDM and are designed specifically for use with Ultra-Rib pipe. This unique design is also available in Nitrile. Sealing gaskets shall meet the requirements of CSA B182.4 and ASTM F477, with the additional requirement that joints shall be able to withstand 345 kPa (50 psi) hydrostatic pressure. The joint will not leak at 10.8 psi or 25′ (74 kPa) or 7.5m of head with –74 kPa (22″) Hg vacuum with spigot under 5% ring deflection and joint at full axial deflection.


PVC compound

8 – 24” (200 – 600 mm)

CSA B182.4 certified
BNQ 3624-135 certified

Sanitary and Storm Sewers
Industrial Lines
Highway / Culvert

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