Twinwall Pipe Saddles for 90° Lateral Connections

Stormwater drainage projects often need a simple way to connect lateral pipework into a main pipe run.

However, creating a clean connection into twinwall, corrugated or ribbed pipe is not always straightforward. The connection needs to fit the pipe correctly, seal properly and keep installation simple on site.

That is where the VIPSeal VTWS Twinwall Pipe Saddle can help.

The VTWS adaptor creates a 90° lateral connection into twinwall, corrugated and ribbed pipe for stormwater applications. It gives contractors a practical way to connect DN110 or DN160 lateral pipework into larger main pipe runs.

What is a twinwall pipe saddle?

A twinwall pipe saddle allows installers to create a branch connection into an existing or new main pipe.

Rather than replacing a full pipe section or using a fabricated junction, installers drill a hole into the main pipe wall. They then insert the VTWS adaptor into the pipe and fit the lateral pipe into the saddle.

As a result, the installation stays simple, tidy and cost-effective.

Designed for stormwater drainage applications

The VIPSeal VTWS Twinwall Pipe Saddle suits stormwater applications where contractors need to create a 90° lateral connection into structured wall pipe.

Typical applications include:

• stormwater drainage systems
• twinwall pipe connections
• corrugated pipe connections
• ribbed pipe connections
• DN110 lateral connections
• DN160 lateral connections
• new drainage installations
• repair or upgrade work where a new lateral connection is required

Because each project can be different, installers should always check the pipe size, pipe profile and application before selecting the correct saddle.

DN110 and DN160 lateral connection options

VIPSeal supplies the VTWS Twinwall Pipe Saddle in DN110 and DN160 options.

The DN110 version uses a 127mm hole size and suits main pipe dimensions from DN225 to DN600.

The DN160 version uses a 170mm hole size and suits main pipe dimensions from DN300 to DN750.

This gives contractors a clear choice depending on the lateral pipe size and main pipe diameter.

EPDM rubber with stainless steel tension bands

The VTWS adaptor uses EPDM rubber, which suits stormwater drainage applications and offers reliable sealing performance.

Stainless steel tension bands help secure the saddle in position. Standard options use 304 stainless steel, while 316 stainless steel options are also available for applications where increased corrosion resistance may be required.

Together, the rubber body and stainless steel tension band help create a secure, watertight connection into the main pipe wall.

Quick and simple installation

The VTWS Twinwall Pipe Saddle keeps installation simple.

First, installers drill the correct hole size into the main pipe. They then insert the adaptor into the pipe wall and secure it in place. Once fitted, the lateral pipe can be fully inserted into the adaptor to complete the 90° connection.

This helps reduce installation time and avoids the need for more complex pipe alterations.

A practical saddle adaptor for twinwall pipe

Twinwall and structured wall drainage systems need connection products that fit the pipe profile and support reliable installation on site.

The VIPSeal VTWS Twinwall Pipe Saddle gives contractors a practical option for creating 90° lateral connections into twinwall, corrugated and ribbed pipe.

With DN110 and DN160 options, EPDM rubber construction and stainless steel tension bands, the VTWS range offers a simple and effective solution for stormwater drainage applications.

For stormwater drainage projects, contractors should always consider the wider drainage design, pipe layout and any relevant surface water drainage requirements.

For product sizing, installation guidance or help choosing the correct option, contact the VIPSeal sales team.

Lateral connections and saddle solutions from VIPSeal

The VTWS Twinwall Pipe Saddle is one of several VIPSeal products designed to help create secure pipe connections into existing pipes and structures.

Alongside twinwall saddles, the VIPSeal range includes lateral connections, universal saddles, wall seals, tank seals and UNI Seals for a wide range of drainage, construction and civil engineering applications.

Whether the requirement is for a new lateral connection, a pipe entry through a chamber wall, or a sealing solution for a tank or structure, VIPSeal can help support contractors and specifiers with practical product options.

View the wider VIPSeal lateral connection and saddle range, or contact the VIPSeal sales team for sizing, application and installation guidance.