RUBBER EXPANSION JOINT WITH PTFE LINING TYPE Ai-1
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RUBBER EXPANSION JOINT WITH PTFE LINING TYPE AI-1 UNIVERSAL EXPANSION JOINT DN 32 – DN 500 NOTE 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. STRUCTURE TYPE Ai-1 RUBBER BELLOWS WITH PTFE lining PN 10 Universal expansion joint consisting of a rubber bellows with seamless PTFE lining and rotable flanges Flat-convoluted molded bellows made of EPDM Synthetic fibre reinforcement Wire-reinforced rubber rim Seamless PTFE lining with self-sealing flared ends Material grade* EPDM/PTFE, NBR/PTFE Colour code orange, red with stamp ”PTFE-Inliner“ Chemicals, acids, lyes *Check or inquire about the resistance of the rubber grade to temperature and medium Technical calculation for conveying aggressive media very good chemical resistance resistant to most of the acids and lyes for compensating axial, lateral and angular movement for muffling vibration and noise for reducing thermal and mechanical tension to compensate for installation inaccuracies chemical industry beverage industry Max. perm. operating pressure Bursting pressure Vacuum operation ACCESSORIES Internal guide sleeve of PTFE Protective cover Max. operating pressure to be set 30 % lower for shock loads. *Temperature related decrease of pressure (see technical annex page 198 rubber expansion joint Type A-1). FLANGES / VERSIONS Rotable flanges with stabilizing collar Flange drilling for through bolts Special machined groove for rubber rim Standard ANSI, BS etc. Connection dimensions see technical annex page 213 – 215 Corrosion protection hot-dip galvanized, special varnish, special

DIMENSIONS STANDARD PROGRAM Pressure rate Type Ai-1 Universal expansion joint with PTFE lining *DN 32 - DN 125 also available as type Ri-1, length 136, DN 150 - DN 300 also available length 137. **For manufacturing reasons the inner diameter may vary by ± 3 or ± 5 mm MOVEMENT COMPENSATION ∆ ang A* Effective Weight Angular bellows cross movesectional area ment at 10 bar approx. cm2 ± \ degrees kg Please inquire for simultaneous (different) movement *Effective bellows cross sectional area is a theoretical value www.stenflex.com / info@st