Standard_Parts_Catalogue

Page 1599 | 3.5 Controlling, Venting, Sealing of Liquids and Gases 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 1 2 d 1 d 2 d 3 Vent hole d 4 l 1 ±0,5 l 2 l 3 s t min. 22 G 3 ⁄ 8 M 16 x 1,5 2 M 5 26    8   15 5 8 26 G 1 ⁄ 2 M 20 x 1,5 2 M 5 27,5  8,5 16 5 8 32 G 3 ⁄ 4 M 26 x 1,5 2 M 5 29    9   17 6 8 40 G 1 - 2 M 5 32,5 11   18 7 8 Threaded plugs GN 441 / GN 442 with the external diameter d 1 match the screw-in holes for DIN 3852 pipe bolt connections. 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 741 / GN 742 (with External Hexagon) → Page 1590 • Plugs GN 548.1 (Plastic) → Page 1601 Information GN 441 GN 442 Threaded Plugs up to 100 °C up to 200 °C Aluminum, with Wing Knob 1 d 1 2 d 2 3 Identification no. 4 Finish How to order (100 °C) 1 2 3 4 GN441-22-M16x1,5-1-BL 1 d 1 2 d 2 3 Identification no. 4 Finish How to order (200 °C) 1 2 3 4 GN442-40-G1-1-SW 3 Identification no. 1 Without vent hole 2 With vent hole • Aluminum - - Powder coated Black, RAL 9005, textured finish SW - - Plain, tumbled BL • GN 441 - - Temperature resistant up to 100 °C - - Seal rubber NBR (Perbunan ® ) • GN 442 - - Temperature resistant up to 200 °C - - Seal rubber FPM (Viton ® ) Identification by not black finish of the seal • Elastomer Characteristics → Page 2158 • RoHS Specification 4 • Version with dipstick On request