The Key to Strong Socket Welds

Why Pipe Preparation Is the Hidden Key to Strong Socket Welds

In the world of thermoplastic piping, achieving a strong, reliable weld isn’t just about applying heat. It starts with something far more fundamental — how well the pipe is prepared before the welding even begins.

At IPS Flow Systems, we work with customers across sectors like chemical processing, water treatment, and industrial installations, where socket welding is a standard part of the job. And one of the most common issues we see in the field is the lack of consistent, high-quality pipe preparation.

That’s why we’re excited to introduce the ASAHI PREP Tool, now available to buy or hire from IPS.

Why Pipe Prep Matters

Thermoplastics like polyethylene (PE) and polypropylene (PP) are known for their flexibility, chemical resistance, and ease of installation. But these materials also oxidise naturally when exposed to air, forming an invisible layer on the pipe surface that can weaken socket welds if not properly removed.

If installers skip this step — or complete it manually with inconsistent tools — the risk of failure increases dramatically. Poor prep leads to weak welds, misalignment, and time-consuming rework.

The answer? A tool that takes the variability out of the process.

The ASAHI PREP Tool: One Tool, Three Functions

Developed by ASAHI and now offered by IPS Flow Systems, the PREP Tool provides a fast, repeatable and reliable method for preparing pipe before socket welding. It’s a completely manual, maintenance-free tool designed to be simple to use — and impossible to misuse.

In one operation, the tool:

1. Removes oxidation from PE and PP pipe surfaces
2. Bevels the pipe end for easier insertion and better fusion
3. Marks the correct insertion depth directly onto the pipe

The result? Better weld quality, faster installation, and a consistent finish every time — regardless of who’s using the tool.

Designed for the Job Site

It supports DVS Type B socket welding standards and is suitable for both field and workshop use.

Buy or Hire — Flexibility to Suit Any Project

We understand that not every job requires a permanent investment in tooling. That’s why IPS now offers the complete ASAHI PREP Tool kit — covering 20mm to 63mm — available to both purchase and hire.

The kit includes:

1. PREP tools for each size
2. Two-piece manual handle
3. Driver nut
4. Robust storage case for easy transport and organisation

Raising the Standard for Socket Welding

Reliable socket welds start with proper preparation. The ASAHI PREP Tool allows installers to work faster, more accurately, and with greater confidence in the finished result. It’s the perfect solution for anyone looking to raise standards, save time, and reduce the risk of rework.

To arrange a demo or enquire about pricing, contact our team today.