Standard_Parts_Catalogue

Page 1611 | 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 3 d 1 d 2 Opening pressure in mbar ±20 % d 3 d 4 l 1 ≈ l 2 ≈ 31 G 1 ⁄ 4 - - 10 100  8 30 10 30 31 G 3 ⁄ 8 M 16 x 1,5 M 18 x 1,5 10 100 10 30 10 30 31 G 1 ⁄ 2 M 20 x 1,5 M 22 x 1,5 10 100 10 30 10 30 42 G 3 ⁄ 4 - - 10 100 16 41 12 37 42 G 1 - - 10 100 16 41 12 37 Breather plugs GN 552.1 with sealing disk vents the tank after a lower pressure of 10 or 100 mbar respectively is reached. The sealing disk prevents the contamination of the oil from the outside (dust) and an air filter is not required. This also ensures that no oil can spill to the outside, neither by excessive agitation in the tank nor during transport. see also... • Breather Caps GN 552 → Page 1608 Information GN 552.1 Breather Caps Plastic, with Sealing Disk 1 d 1 2 d 2 3 Opening pressure How to order 1 2 3 GN552.1-31-G 3 ⁄ 8 -10 • Plastic (Polyamide PA) - - Temperature resistant up to 100 °C - - Upper part (cap) Orange, RAL 2004 - - Lower part (threaded part) Black - - Sealing disk black • O-ring / Seal Rubber NBR (Perbunan ® ) • Pressure spring Stainless steel • Elastomer Characteristics → Page 2158 • Plastic Characteristics → Page 2158 • RoHS Specification • Breather caps with other opening pressure On request Original design SFV.