DN/OD 160
In this category you will find house drainage pipe systems with DN/OD 160 (outside diameter 160 mm), especially HT pipes made of wastewater-resistant plastic. These pipes are suitable for use in sewerage and in sanitary and irrigation applications.
Buy DN/OD 160 — Guide& Tips
This category contains 56 products for household drainage pipe systems with the nominal outside diameter DN/OD 160. The designation DN/OD stands for nominal diameter (DN) referring to the outer diameter (OD). This means: All pipes, fittings and accessories with DN/OD 160 have a defined outer diameter of 160 mm, which ensures a system-compliant connection.
The HT pipes offered here – high-temperature plastic pipes – are specially developed for use in drainage and wastewater disposal. They are made of an advanced material that is permanently resistant to wastewater, chemicals and temperature fluctuations. Typical applications include domestic sanitary installations, rainwater drainage or connections to main drains.
When purchasing, pay attention to the specific application conditions: For indoor use (e.g. vertical stacks), HT pipes with higher temperature resistance are ideal. For outdoor use (e.g. buried pipes), you should ensure sufficient compressive strength and frost resistance. The combination of bends, sockets and pipes requires precise fit, therefore all components should come from the same system. Typical variants include bends in various angles, sliding sockets and reducers matching DN sizes 110, 125 or 160.
If you are planning a reliable drainage system, start by surveying your pipe route. Decide whether you need straight pipes, bends or connectors. Also plan for spare sockets in case a branch connection is needed later. Correctly sizing the components avoids rework and leakage risks. Especially when connecting DN 160 to smaller nominal diameters, reducers are essential and are available in this category.
Get an overview of our complete solutions by accessing the parent category Household Drainage Pipe Systemsview to see how DN/OD 160 integrates into the overall system. If you need flexible connections or want to compare pipes with an outer diameter of 110 mm, you can also check the category DN/OD 110 as a useful alternative if the pipe cross-section needs to be larger.
Popular DN/OD 160
HTsafeB bend DN/OD 160 30 degrees
This 30-degree bend is suitable for slight direction changes in the wastewater system. Perfect for avoiding obstacles or adjusting the pipe run without significant pressure loss.
HT pipe bend, DN 160, 87 degrees, wastewater bend
The 87-degree elbow is the standard element for right-angle branches. Ideal for vertical downpipes or horizontal direction changes with minimal flow resistance.
HT pipe 160, sliding sleeve DN 160, wastewater pipe HT, socket
The sliding sleeve serves as a connecting element between two pipe ends. Particularly useful for repairs or subsequent extensions, as it can be installed without special tools.
These three bestsellers represent the basic functional elements of any drainage pipe system. The 30-degree elbow allows gentle curves, while the 87-degree elbow is indispensable for typical corners and downpipes. The sliding sleeve, in turn, facilitates maintenance work as it is simply pushed over the pipe end. When building a new system, you usually order several elbows and sleeves to cover all connections. Make sure that all components are made of the same material (HT) to avoid thermal expansion conflicts.
Frequently Asked Questions
What exactly does DN/OD 160 mean?
DN/OD 160 denotes the nominal diameter (DN) of a pipe based on the outer diameter (OD). Specifically, the outer diameter measures 160 mm. This dimension is standardized industry-wide so that all HT pipes, bends, sockets, and fittings with this designation fit together precisely. The inner diameter varies depending on the wall thickness, but is typically around 150 mm. DN/OD 160 is mainly used for main soil pipes and collecting lines in residential or commercial buildings, as the cross-section is sufficient to transport larger volumes of wastewater.
Can I also use DN/OD 160 for irrigation systems?
Theoretically, you can also use HT pipes with DN/OD 160 for irrigation systems, but they are primarily designed for wastewater. The material is resistant to wastewater and chemicals, but not specifically to UV radiation from permanent outdoor use or pressure loads. For pure irrigation systems (e.g., garden or field), we recommend PE or PVC pressure pipes optimized for water supply. If you want to use DN/OD 160 for rainwater drainage in the garden, ensure sufficient frost depth when laying in the ground and use suitable shafts.
Which bend angle is right for my project?
The choice of bend angle depends on the routing of your pipeline. A 30-degree bend is suitable for slight changes in direction, e.g., to route around beams or other installations. An 87-degree bend – almost a right-angle turn – is used for vertical soil pipes or horizontal branches. Avoid 90-degree bends with a small radius; they cause high flow resistance and a risk of blockage. For tight spaces, it is better to use two 45-degree bends. Standard in this category are 30, 45, and 87 degrees – choose the one that best represents your piping plan.
How do I connect HT pipes with DN/OD 160 correctly?
HT pipes are usually connected using push-fit sockets with rubber lip seals. Insert the pipe end into the socket until it stops, mark the insertion depth, pull it back about 1 cm, and leave an expansion gap. This clearance compensates for thermal expansion. For tight connections, use HT sealing rings that are inserted into the socket. Ensure the pipe ends are clean and burr-free. With sliding sleeves, the sleeve is first pushed onto one pipe, the second pipe is inserted, and then the sleeve is pulled centrally over both ends. No gluing or welding is necessary – the sealing rings guarantee the seal.
Other categories
If your project requires other pipe cross-sections, you can switch to adjacent nominal diameters. The choice of the correct diameter depends on the number of connected drainage fixtures and the pipe length.
- DN/OD 110 – the standard diameter for individual connections such as washbasins or toilets. Significantly slimmer than 160 mm, but often too small for main lines.
- DN/OD 125 – an intermediate size offering more capacity than 110 mm, but remaining more compact than 160 mm. Useful for medium-sized floor drain pipes.
- House drain pipe system (overview) – the parent category where you can see all diameters, fittings, and accessories at a glance. Here you can plan complete systems.
Consider whether your current project can manage with a smaller diameter. DN/OD 110 is sufficient for most sanitary objects in a household (e.g., one washbasin, shower, or toilet each). DN/OD 125 provides a reserve when several devices are connected in parallel. DN/OD 160 is used when connecting collecting pipes with multiple drains or sizing the main downpipe of a multi-family building. Use the parent category to get an overall view and perform price calculations for an entire system.
In short
DN/OD 160 is a standard size for household drain pipe systems with an outer diameter of 160 mm. The category includes 56 HT pipes, bends, and sockets specifically designed for wastewater and sewage applications. Typical installation areas are main downpipes, collecting lines, and rainwater drainage. Important selection criteria include the bend angle (30, 45, 87 degrees) and the availability of sliding sockets for repairs. Compare adjacent diameters such as DN/OD 110 or 125 if your piping plan specifies lower flow volumes. Pay attention to the compatibility of all components in the system and to the correct installation depth for buried pipes to avoid frost damage.