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SDR 35 (Standard Dimension Ratio 35) pipe is a type of PVC (polyvinyl chloride) pipe that is commonly used in underground drainage systems. It is designed to handle non-pressure applications, specifically for sanitary sewer and storm drainage systems. Here are some key characteristics of SDR 35 pipe:

  1. Material: SDR 35 pipe is made of PVC, a durable and corrosion-resistant material. PVC pipes are lightweight, easy to install, and have a long service life.

  2. Size and Dimensions: SDR 35 pipe comes in various sizes, ranging from 4 inches to 15 inches in diameter. The "35" in SDR 35 refers to the pipe's standard dimension ratio, which is the ratio of the outside diameter to the wall thickness. In the case of SDR 35, the outside diameter is 35 times the wall thickness.

  3. Wall Thickness: SDR 35 pipes have a thicker wall compared to pressure-rated PVC pipes. The thicker wall provides added strength and durability, making it suitable for underground applications where it may be subjected to soil loads and external pressures.

  4. Jointing: SDR 35 pipes are typically joined using a bell and spigot system. The bell end of one pipe fits into the spigot end of another, and a gasket is used to create a watertight seal between the pipes.

  5. Application: SDR 35 pipe is commonly used for gravity-flow sewer and storm drainage systems. It is suitable for conveying wastewater, rainwater, and other non-pressure fluids.

It's important to note that SDR 35 pipe is specifically designed for underground non-pressure applications. If you require pipes for pressurized systems or different applications, there are other types of PVC pipes available to suit those needs.


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Product Catalogs


SDR 35 Sewer + Drain PVC Specs

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