The rectangular metal expansion joint features both axial and lateral compensation capabilities. It is used at the inlets and outlets of air conditioning pumps, fire pumps, and domestic water supply pumps to reduce the vibration of the main unit, absorb pipeline noise, protect equipment, and extend the service life of the equipment. It also boasts advantages such as withstanding high temperatures and corrosion resistance.

The rectangular metal expansion joint connection methods: ①Flanged connection; ②Sleeve connection.

Rectangular metal expansion joints are used to compensate for the displacement of pipeline and equipment systems conveying micron-pressure dust gases, smoke, coal gas, and other gases due to temperature changes, mechanical vibrations, and foundation settlement.

Rectangular metal expansion joints are applicable in: pump, valve, and air compressor inlets and outlets; fire protection piping, air conditioning piping, steam piping, etc.; general factory piping and hygienic environments; mechanical equipment piping requiring vibration reduction and thermal expansion compensation; domestic water supply piping and flexible connections.

Rectangular metal expansion joints, also known as rectangular metal compensators, rely on the expansion and contraction, as well as bending, of the bellows to compensate for the pipeline in the axial, lateral, and angular directions. Their functions include:

1. Compensates for axial, lateral, and angular thermal deformation in absorption pipelines.

Absorb equipment vibration, reducing the impact of equipment vibration on pipelines.

3. Absorbs the deformation amount of pipelines due to earthquakes and land subsidence.