STEEL EXPANSION JOINT TYPE SF-11

Product catalog summary

Overview: The document provides technical specifications and applications for the SF-11 type axial expansion joint, designed for industrial use. It highlights the product's features, materials, certifications, and available accessories.

Specifications:

Type: Vacuum-proof axial expansion joint with stainless steel bellows and welded flanges.
Size Range: DN 15 – DN 500.
Structure: Single or multi-ply bellows with multiple convolutions.
Materials: Various stainless steel grades, including 1.4541, 1.4404, and 1.4571.
Temperature Range: -196 °C to +550 °C, depending on material grade.
Pressure Rating: Standard program PN 16.

Applications:

Compensates axial movement and reduces tension in pipes and system components such as pumps, compressors, engines, turbines, and machines.
Suitable for industrial applications, gas and water supply, exhaust systems, and heating installations.
Helps compensate for installation inaccuracies.

Certifications:

CE (PED 2014/68/EU)
American Bureau of Shipping
Bureau Veritas
DVGW (DN 32 – DN 200)
DNV GL® / DNV®
RMRS
Rina

Accessories:

Internal guide sleeve
Protective tube
Gas sealings for DVGW applications

Design and Materials:

Guide Sleeve Material: Standard 1.4541.
Special designs available upon request for different sizes, lengths, or pressure ratings.
Flanges: Welded with turned seal, flange drilling for through bolts.
Corrosion Protection: Anti-corrosion primed, special varnish available.

Technical Considerations:

Comply with general technical instructions regarding reaction force, moving force, fixed point load, and installation instructions.
Subject to technical alterations and deviations from the manufacturing process.

Data Summary:

Table values are based on +20 °C, bellows material 1.4541, and 1000 cycles.
Max allowable pressure pulsation: 1.6 bar for brief periods.
Effective bellows cross-sectional area is a theoretical value.
Total possible movement example: D axtot= 28mm, meaning +/- 14 mm movement.

Catalog excerpts

STEEL EXPANSION JOINT TYPE SF-11 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. AXIAL EXPANSION JOINT DN 15 – DN 500 STRUCTURE TYPE SF-11, STEEL BELLOWS PN 16 Vacuum-proof axial expansion joint consisting of a stainless steel bellows and welded flanges 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 Media containing chloride, oil, soap, drinking water, food stuff, petrol * Check or inquire about the resistance of material grades to temperature and medium. ** Check or inquire about reduction in pressure by temperature. FLANGES / VERSIONS APPLICATIONS for compensating axial movement for reducing tension, in pipes and their system components, e.g. pumps compressors engines turbines machines process plants for installation in industrial applications gas and water supply exhaust systems heating installations to compensate for installation inaccuracies GUIDE SLEEVE Materials Standard: 1.4541 Welded flanges with turned seal Flange drilling for through bolts Standard Others ANSI, BS etc. Connection dimensions see technical annex page 213 – 215 Corrosion protection anti-corrosion primed SPECIAL DESIGN Other sizes (DN), lengths or pressure ratings on request. C E (PED 2014/68/EU) American Bureau of Shipping Bureau Veritas DVGW (DN 32 – DN 200) DNV GL® / DNV® RMRS Rina ACCESSORIES internal guide sleev

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PRESSURE RATE STANDARD PROGRAM PN 16 DN Ø di Internal guide sleeve Ø mm For larger sizes (DN) please see type SF-16. Also available with PN 10 flange connection. Table values refer to +20 °C, bellows material 1.4541, 1000 cycles. Max. allowable pressure pulsation of 1.6 bar (brief periods). Please inquire for deviating values. *Effective bellows cross sectional area is a theoretical value. ** his value represents the total possible movement. Example: D axtot= 28mm. This means that the expansion joint has a total movement T value of 28 mm (= +/- 14 mm). DN 15 – DN 32 Type SF-11 without inner guide...

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