HBIS Group Handan Company
How to connect steel pipes and PVC pipes
Apr 03,2025
The connection between steel pipes and PVC pipes mainly uses converter joints, flange connections or hot melt sockets. The specific choice must be determined based on the pipe diameter, usage scenario and sealing requirements. The following are common methods and key points:
Converter Connection Method
Applicable scenarios: Suitable for regular home decoration or scenes that require precise sealing.
step:
Select a dedicated adapter with metal end (threaded or plugged) and PVC end.
Treatment of steel pipe ends: If it is a threaded connection, the corresponding threads must be processed at the end of the steel pipe; if it is a socket connection, the inner wall of the steel pipe must be cleaned and sealant must be applied.
PVC end treatment: Use PVC special glue to apply the connector and tube end, and then allow it to cure after insertion.
Note: After completion, stress tests are required to ensure no leakage.
Flange connection method
Applicable scenarios: medium and large diameter pipes (≥100mm) or scenes that require frequent disassembly (such as industrial use).
step:
Weld or install matching flanges at the ends of steel and PVC pipes.
Use rubber gaskets and bolts to secure the flange to ensure even tightening.
Note: The flange must match the outer diameter of the pipe and can be connected with an agitated connection using an inclination ring.
Hot Melt Socketing Method (Simple Temporary Connection)
Applicable scenarios: Small-diameter pipeline or emergency repair.
step:
The steel pipe end is wrapped with 5-7 rings of raw material tape to enhance sealing.
Heat the PVC pipe port with a hot air gun until softened (avoid burning), quickly put it on the steel pipe and overlap 4-5cm.
Use wire to tighten the connector while it is hot to ensure fit.
Other precautions
Sealing material: It can be combined with sealant, raw tape or paraffin to enhance sealing.
Tool selection: It is recommended to use professional brand accessories such as Sichuan Plastics PVC pipe fittings.
Recommended solution: Preferred to converter joints or flange connections to ensure long-term reliability, hot melt sockets are suitable for temporary scenarios. Pipe specifications and construction specifications must be strictly followed during operation.
Hot Tags: