PLATE FLANGE: The Cost-Effective Solution for Low-Pressure Piping
Release Time:
Jul 21,2025
Lightweight, easy to install, and ideal for non-critical systems like water supply, HVAC, and general industrial pipelines.
PLATE FLANGE
Structural Features:
A flat, circular flange without a neck, typically made from a single steel plate.
Designed for simple, low-pressure piping systems.
The flange has bolt holes and a center opening for the pipe to pass through.
Its flat profile makes it economical, lightweight, and easy to install.
Welding Method:
Connected by fillet welding around the pipe at the flange’s bore.
Welding is done only on the outside (and optionally inside) of the flange.
Does not require beveling or complex alignment, suitable for non-critical connections.
Applications:
Ideal for:
Low-pressure, non-hazardous pipelines
Water supply systems
HVAC ducting
General industrial piping where cost-efficiency is key


Common in:
Building infrastructure
Light-duty waterworks
Low-pressure gas systems
Common Size Standards:
Custom sizes available
Often manufactured to EN1092-1 (Type 01), DIN 2576, or ASME dimensional equivalents
Pressure Ratings:
Generally used in Class 150, or PN6 / PN10 / PN16 systems
(Not recommended for high-pressure or high-temperature applications)
Flange Face Types:
FF (Flat Face) – most common
Also available with custom grooves for specific sealing needs
Materials:
Carbon Steel (most common), Stainless Steel, Mild Steel, Galvanized Steel
Recommendation:
Plate flanges are a cost-effective and simple solution for non-critical or low-pressure connections.
They are especially suitable for budget-conscious projects and systems that do not demand high structural performance.
Recommended for basic utility piping where ease of fabrication and installation is more important than strength.
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