Standard_Parts_Catalogue

Page 1555 | 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 l 1 l 2 s Recommended tightening torque in Nm 11 G 3 ⁄ 8 24  8  7   22  4 ...  8 15 G 1 ⁄ 2 28 10  8,5 24  6 ...  8 18 G 3 ⁄ 4 35 10  8,5 32  8 ... 10 23 G 1 43 11  9,5 38 10 ... 12 30 G 1 1 ⁄ 4 50 11  9   46 12 ... 15 40 G 2 68 12 11   62 12 ... 15 The window of oil sight glasses GN 543.2 is embedded in the body during the injection process and it is therefore absolutely leaktight. The sealing ring is embedded in a radial undercut and it cannot be extru- ded during the tightening operation. The red version indicates a special „control point“. Assembly instruction: For mounting on walls of less than 4 mm thickness please use mounting nuts GN 7430. see also... • Prismatic Oil Sight Glasses GN 543.3 / GN 543.4 → Page 1556 Information GN 543.2 Oil Sight Glasses Plastic 1 d 1 2 d 2 3 Type 4 Color How to order 1 2 3 4 GN543.2-18-G¾-A-SW 3 Type A With reflector B Without reflector • Body Plastic (Polyamide PA) - - Temperature resistant up to 100 °C - - Pressure resistant up to 3 bar - - Black SW - - Red RT • Sight glass Plastic Crystal-clear Polyamide (PA-T) • Seal Rubber NBR (Perbunan ® ) • Reflector Aluminum, natural color, anodized • Elastomer Characteristics → Page 2158 • Plastic Characteristics → Page 2158 • RoHS Specification 4 • Mounting Nuts GN 7430 → Page 1632 Accessory Original design HGFT.