PP Coated Steel Flange

Description

♦ Construction: Polypropylene (PP) coated carbon steel

♦ Diameter range: DN25 – DN630 (½″ – 24″)

♦ Pressure ratings: PN10, PN16, ASME B16.5 Class 150

♦ Standards compliance:
GB/T 9119-2010
ISO 7005-1:1992
DIN 2501
DIN 2576

Product Overview

PP Coated Steel Flange Backing Rings are carbon steel flanges protected with a polypropylene coating to enhance resistance against corrosion and chemical attack. The PP layer acts as a durable barrier, extending service life and improving performance in aggressive environments where uncoated steel flanges may deteriorate rapidly.

These flanges combine the mechanical strength of steel with the chemical resistance of polypropylene, making them a reliable and economical solution for industrial piping systems.

Advantages & Features

» Excellent Corrosion Resistance
The polypropylene coating provides strong protection against a wide range of corrosive chemicals and harsh environments.

» Cost-Effective Solution
More economical than stainless steel flanges while maintaining required strength and durability.

» Lightweight Design
PP coating reduces overall weight, making handling, transportation, and installation easier.

» High Chemical Stability
Suitable for applications involving aggressive chemicals, ensuring long-term performance without degradation.

Applications

PP Coated Steel Flange Backing Rings are widely used in:

• Chemical processing plants

• Wastewater treatment facilities

• Water treatment and distribution systems

• Oil and natural gas pipeline transport lines

• Marine and coastal environments

• Industrial piping systems exposed to corrosive media

Main Uses

• Acts as a connector between pipes, valves, and fittings

• Provides a reliable sealing surface to prevent leakage of liquids and gases