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VALVE DN125 PN10 DIAPHRAGM SHUT-OFF VALVE RICHTER MV/F OPERATED BY HAND WHEEL BODY MATERIAL: 1.0619 PFA BODY LINING, ONE PIECE AND TOP PART OF THE BODY ABOVE THE DIAPHRAGM MADE OF STAINLESS STEEL INCLUDING SCREWS, DOUBLE-LAYER DIAPHRAGM - EPDM AND MODIFIED PTFE/TFM FLANGED TO DIN 1092-2, FORM B C3 CORROSION-RESISTANT EPOXY COATING MAXIMUM OPERATING PRESSURE: 7 BAR MEDIUM: SULPHURIC ACID CONCENTRATION 96-98% TEMPERATURE RANGE: 60 - 80?C CERTIFICATES/MATERIALS AND TEST: EN 10204-3.1