Standard_Parts_Catalogue

Page 1608 | 3.5 Controlling, Venting, Sealing of Liquids and Gases GN 552 Breather Caps Plastic 1 d 1 2 d 2 3 Type 4 Identification no. How to order 1 2 3 4 GN552-42-G¾-A-1 4 Identification no. 0 With splash guards, with wire mesh filter 1 With splash guards, no filter 2 With splash guards, with PU filter 3 No splash guards, no filter 4 No splash guards, with PU filter 3 Type A Without dipstick B * With dipstick 1 2 d 1 d 2 d 3 d 4 l 1 l 2 ≈ l 3 31 G 1 ⁄ 4 - -  8 30  9,5 29,5 188 31 G 3 ⁄ 8 M 16 x 1,5 M 18 x 1,5 10 30  9,5 29,5 188 31 G 1 ⁄ 2 M 20 x 1,5 M 22 x 1,5 12 30  9,5 29,5 188 42 G 3 ⁄ 8 - - 10 41 11,5 36,5 - 42 G 1 ⁄ 2 - - 12 41 11,5 36,5 - 42 G 3 ⁄ 4 - - 18 41 11,5 36,5 184 42 G 1 - - 23 41 11,5 36,5 184 57 G 3 ⁄ 4 - - 18 56 14   42   - 57 G 1 - - 23 56 14   42   - 57 G 1 1 ⁄ 4 - - 28 56 16   42   184 57 G 1 1 ⁄ 2 - - 28 56 16   42   184 Function and operational criteria of breather caps GN 552 see descrip- tion of function. MAX-MIN lines can easily be marked on the two flat sides of the dipstick (see GN 109 → Page 2083) . * Type with dipstick (Type B) is only available for marks 0, 1 and 2 as follows: Size 31 - all threads Size 42 - G ¾ and G 1 only Size 57 - G 1¼ and G 1½ only see also... • ATEX Breather Caps GN 552.6 → Page 1610 • Breather Caps GN 552.1 (with Sealing Disk) → Page 1611 Information • Plastic (Polyamide PA) - - Temperature resistant up to 100 °C - - Upper part (cap) Orange, RAL 2004 - - Lower part (threaded part) Black • Seal, rubber NBR (Perbunan ® ) • Air filter wire mesh - - Zinc plated - - Filtration 50 to 60 µm • Air filter PU-foam (Polyurethan) - - Filtration 40 µm - - Temperature resistant up to 100 °C • Dipstick steel, phosphated • RoHS Specification • Level Markings / Special Lengths GN 109 → Page 2083 On request Original design SFN. / SFP. / SFP+a