Metal flexible unions used on rigid pipe work systems to absorb axial thermal movements. They consist of a corrugated Omega shaped bellow, with welded ends (S25) or flanged ends (S50), and an internal sleeve, which protects the bellow from wear and turbulences. Additionally S50 type incorporates limit rods as standard.
Specification of the range:
Diverse design combinations by end connections (flanged, BW), materials of construction, nominal size range (DN20-DN600), design pressure range (PN10-16) and other versions.
Other typical denominations:
Applications: HVAC, steam, gases, lubrication, compressed air, process, etc.
Certifications: PED 2014/68/EU