Standard_Parts_Catalogue

Page 1552 | 3.5 Controlling, Venting, Sealing of Liquids and Gases ATEX Sight glasses GN 541.6 are suitable for use in an explosion risk environment. They comply with the guidelines 2014/34/EU. A detailed operating instruction is available and included with every sight glass. This allows them to be relatively thin while offering a large window glass. These sight glasses of polyamide have very high mechanical strength. Assembly instruction: For mounting on walls of less than 4 mm thickness please use mounting nuts GN 7430. see also... • ATEX Sight Glasses GN 543.6 (Plastic) → Page 1557 • ATEX Sight Glasses GN 546.6 (Plastic) → Page 1554 • ATEX Sight Glasses GN 743.6 (Aluminum) → Page 1547 Information 1 d 1 2 d 2 3 Type How to order 1 2 3 GN541.6-22-M30x1,5-A • Plastic Crystal clear Polyamide (PA-T) - - High mechanical strength - - Temperature resistant up to 80 °C - - Solvent resistant, but not suitable for alcohol • Seal Rubber NBR (Perbunan ® ) • Reflector Aluminum Natural color, anodized • Elastomer Characteristics → Page 2158 • Plastic Characteristics → Page 2158 • RoHS Specification • Mounting Nuts GN 7430 → Page 1632 Accessory 1 2 d 1 Window glass d 2 d 3 l 1 l 2 s Recommended tightening torque in Nm 11 M 16 x 1,5 22 8 7 19 2 ...  3 14 M 20 x 1,5 26 9,5 8 22 8 ... 10 18 M 25 x 1,5 31,5 8 9 27 8 ... 10 18 M 26 x 1,5 31,5 13 9 27 8 ... 10 20 M 27 x 1,5 31,5 9 9 27 8 ... 10 22 M 30 x 1,5 35 9 10 30 8 ... 10 25 M 35 x 1,5 40 11 10 34 8 ... 10 30 M 40 x 1,5 47 11,5 13 40,5 8 ... 10 1 2 d 1 Window glass d 2 d 3 l 1 l 2 s Recommended tightening torque in Nm 11 G 3 ⁄ 8 22 7,5 7 19 3 ...  5 14 G 1 ⁄ 2 26 10,5 8 22 4 ...  6 20 G 3 ⁄ 4 31,5 10,5 9 27 6 ...  8 25 G 1 40 11 10 34 8 ... 10 30 G 1 1 ⁄ 4 47 11,5 13 40,5 8 ... 10 3 Type A With reflector Original design HFTX-EX GN 541.6 ATEX Sight Glasses Crystal Clear Plastic