How to correctly select and match the specifications and materials of electrofusion fittings?
When selecting electrofusion fittings, the primary principle is to ensure a perfect match between the fitting and the pipe.
Time:
2026-07-31
Author:
When selecting electrofusion fittings, the primary principle is to ensure a perfect match between the fitting and the pipe.
The nominal outside diameter (DN) of the fitting must be identical to that of the pipe, and both should have the same SDR (Standard Dimension Ratio) or wall thickness grade; otherwise, poor fusion may occur. Regarding material, it is recommended to prioritize fittings of the same grade as the pipe (e.g., using PE100 fittings with PE100 pipes).
Using lower-grade fittings with higher-grade pipes is strictly prohibited to avoid creating weak points in the system.
Additionally, verify that the fittings comply with relevant national or international standards (e.g., GB/T 13663.2 for water supply, GB/T 15558.2 for gas) and request authoritative test reports, such as long-term hydrostatic strength tests, from the manufacturer.
More Information
What are the most critical construction steps during the electrofusion welding process?
The core of electrofusion welding lies in "cleaning, scraping, alignment, fixing, and cooling." Among these, scraping off the oxide layer is the most critical step.
2026-09-10
What are the key requirements for matching electrofusion fittings with pipes?
Same polymer family: Fittings and pipes must be polyethylene (PE). Do not mix PE with PVC, PP or other plastics.
2026-07-31
What are the compatibility requirements for electrofusion fittings?
The compatibility requirements for electrofusion fittings primarily include the following aspects:
2026-07-31
How to correctly select and match the specifications and materials of electrofusion fittings?
When selecting electrofusion fittings, the primary principle is to ensure a perfect match between the fitting and the pipe.
2026-07-31
What are the most critical construction steps during the electrofusion welding process?
The core of electrofusion welding lies in "cleaning, scraping, alignment, fixing, and cooling." Among these, scraping off the oxide layer is the most critical step.
2026-07-31
How to intuitively judge whether an electrofusion welded joint is qualified?
After welding and natural cooling, the joint quality can be preliminarily judged through visual inspection.
2026-07-31
Message Consultation
If you have any needs, please feel free to contact us at any time