DIN2697-1972EN.GroovedO-ringsandseal

UDC62-762.445:621.643.412DEUTSCHE NORMJanuary 1972SMSGrooved O-rings and seals for flanged joints西Nominal pressures 64 to 4002697Kammprofilierte Dichtringe und Dichtungen fur Flanschverbindungen.Nenndruck 64 bis 400As it is current practice in standards published by the International Organization for Standardization (ISO),the commahas been used throughout as a decimal marker.Dimensions in mm1O-ringType AFlattening of peaks of groove ridgeswithout centring shoulder40.1yz Number of grooves9015Designation of a grooved O-ring of type A.where d,=115 mm internal diameter and d2=162 mm external diameter,madeof St35.8:O-ring A115×162D1N2697-St35.8Type Bwith centring shoulderFlattening of peaks of groove ridges as in type AZ Number of grooves..d—d2d3—Designation of a grooved O-ring of type B,where d=115 mm internal diameter and da 180mm diameter of centringshoulder.made of St 35.8:0-ring B115×180DlN2697-St35.8Table 1.Dlmenslonsda for nomlnal pressureNominal widthd6410016025032040019461器52568611182脱器5的248股131316102108118112118123122137143153撒9013816100162语8搦28207125188210242218182472572843112602320028528734828432484422503453914424B83003883503444584865124008653550543Nominal width values in brackets shall be avoided where possibleWhere no entry is shown,the O.ring shown for the next higher nominal pressure level shall be used.A dash (-)signifies thatno O-ring of type 9 has been standardized for this pressure levelContinued on page 2Explanatory notes on page 218.5.19Sole saie rights of German08.83rds (DIN-Normen)are with Beuth Vereg GmbH,Berin 30DN2697Engl.Price group 4Sae8N0.0104