STEEL EXPANSION JOINT TYPE SF-20 Please comply with the general technical instructions regarding reaction force, moving force, fixed point load, installation instructions, etc. Subject to technical alterations and deviations resulting from the manufacturing process. LATERAL EXPANSION JOINT DN 32 – DN 500 STRUCTURE TYPE SF-20 / STEEL BELLOWS PN 10, 16 Vacuum-proof, short-length lateral expansion joint, consisting of a stainless steel bellows and rotable flanges Rotable flanges with tie rods to absorb reaction force Multiple convolution bellows in various stainless steel grades Single ply or multi-ply structure Material grade* Possible uses Stainless steel Low temperature, acids, lyes, gases, fertilizers Heat-resistant steel Media containing chloride, oil, soap, drinking water, food stuff, petrol Hot gases, steam, air * Check or inquire about the resistance of material grades to temperature and medium. ** Check or inquire about reduction in pressure by temperature. FLANGES / VERSIONS Rotable flanges Flange drilling for through bolts Standard ANSI, BS etc. Connection dimensions see technical annex page 213 – 215 Corrosion protection hot-dip galvanized, special varnish, special coating etc. APPLICATIONS for compensating lateral movement for reducing tension, in pipes and their system components, e.g. pumps engines machines for installation in industrial applications gas and water supply exhaust systems heating installations drinking water systems to compensate for installation inaccuracies TIE ROD RESTRAINTS External restraints carried on spherical washers/conical seats Materials Standard: tie rods 8.8 Others: stainless stee

SPECIAL DESIGN Other sizes (DN), lengths or pressure ratings on request. C E (PED 2014/68/EU) American Bureau of Shipping Bureau Veritas D VGW (DN 32 – DN 200) DNV GL® / DNV ® RINA ACCESSORIES Internal guide sleeve Protective tube Gas sealings for DVGW-application Type SF-20 External restraints, carried on spherical washers/conical seats (ball joint) PRESSURE RATE STANDARD PROGRAM PN 10 C lat Ffric D lat tot Lateral Lateral Friction force movement spring rate restraints PRESSURE RATE STANDARD PROGRAM PN 16 C lat Ffric D lat tot Lateral Lateral Friction force movement spring rate restraints Table...