Metal Bellows Expansion Joint, SS, AS, 3/8-24 IN, 150-400 LB

Product Name: Metal Bellows Expansion Joints
Sizes: 3/8-24 Inch (DN10-DN600)
Pressure Range: 0.1 Mpa to 6.4 Mpa, PN10-PN64, Class 150-400 LB
Types: Axial Type, Transverse Type, Angular Type, Pressure Balanced Type
Main Materials: Cast Steel, Stainless Steel, Alloy Steel

Bellows expansion joints, also known as expansion joints or flexible joints, are composed of corrugated pipes (a type of elastic element) and accessories such as end pipes, brackets, flanges, and conduits that form the main body of the device. They are primarily used in various pipelines to compensate for thermal displacement, mechanical deformation, and to absorb various mechanical vibrations. This helps reduce deformation stress and improve the service life of pipelines. The connection methods for corrugated pipe expansion joints are divided into two types: flange connection and welding. Directly buried pipeline compensators are generally welded (excluding trench installation).

Product Features

A bellows expansion joint is a compensation device designed to absorb the dimensional changes caused by thermal expansion and contraction of pipelines, conduits, or containers. It achieves this through the effective expansion and contraction deformation of its elastic components. It is a type of compensation element capable of absorbing axial, lateral, and angular displacement.

Main Materials

Super Austenitic Special Stainless Steel: 254SMO, SS 904L, AL6XN.
Dual Phase Stainless Steel: Duplex 2205 dual phase steel (S31803).
Nickel-Based Alloy Steel: INCOLOY 800/800H/800HT/840/825, INCONEL 600/601/690/625/X-750, Hastelloy C-276/C-22/X, MONEL 400/K500.
Pure Nickel: N4, N6 (Ni200, Ni201).
Titanium Plates for Stamping: GR1, GR2, TA1, TA2.
Austenitic Stainless Steel: SUS304, SUS304L, SUS316, SUS316L, SUS310S, SUS321, SUS316Ti.