Standard_Parts_Catalogue

Page 1590 | 3.5 Controlling, Venting, Sealing of Liquids and Gases GN 741 GN 742 Threaded Plugs up to 100 °C up to 180 °C Aluminum 1 2 d 1 d 2 d 3 Vent drilling d 4 e ≈ l 1 l 2 s t 19 G 1 ⁄ 4 M 14 x 1,5 - - 2 M 5 17,3 15,5 8   15 8 22 G 3 ⁄ 8 M 16 x 1,5 - - 2 M 5 20,8 15,5 8   18 8 26 G 1 ⁄ 2 M 20 x 1,5 - - 2 M 5 24,3 16    8,5 21 8 32 G 3 ⁄ 4 M 26 x 1,5 M 27 x 1,5 - 2 M 5 31,2 17    9   27 8 40 G 1 M 33 x 1,5 - - 2 M 5 37   19,5 11   32 8 50 G 1 1 ⁄ 4 M 40 x 1,5 M 42 x 1,5 M 42 x 2 2 M 5 47,3   21 12   41 8 60 G 1 1 ⁄ 2 - - - 2 M 5 57,7   22 13 50 8 Threaded plugs GN 741 / GN 742 are fitted with outside diameter d 1 to suit screw holes with BSP threads to DIN 3852. The sealing ring is embedded in a radial recess on the flat side. This prevents the seal from being lost or squeezed out during tightening. see also... • Threaded Plugs GN 745 (Plastic) → Page 1584 • Threaded Plugs GN 747 (Plastic, with DIN-Re-Fill Symbol) → Page 1587 • Threaded Plugs GN 740 (Plastic, with DIN-Drain Symbol) → Page 1586 • Threaded Plugs GN 441 / GN 442 (with Catch) → Page 1599 Information • Aluminum - - Type OS, ES and AS Fine turned, plain - - Type OSS, ESS and ASS Fine turned, black anodized - - Symbols laser engraved • GN 741 - - Temperature resistant up to 100 ° C - - Seal Ethylene propylene diene rubber (NBR) Black • GN 742 - - Temperature resistant up to 180 ° C - - Seal Fluorine rubber (FPM / FKM) Brown • Elastomer Characteristics → Page 2158 • RoHS Specification • With dipstick On request 1 d 1 2 d 2 3 Type 4 Identification no. How to order (100 °C) 1 2 3 4 GN741-26-G½-OSS-1 1 d 1 2 d 2 3 Type 4 Identification no. How to order (180 °C) 1 2 3 4 GN 742-32-M26x1,5-ES-2 3 Type OS Neutral, plain OSS Neutral, black anodized ES With DIN re-fill symbol, plain ESS With DIN re-fill symbol, black anodized AS With DIN drain symbol, plain ASS with DIN drain symbol, black anodized 4 Identification no. 1 Without vent drilling 2 With vent drilling