Standard_Parts_Catalogue

Page 1576 | 3.5 Controlling, Venting, Sealing of Liquids and Gases GN 654 GN 654.1 Oil Level Indicators High Chemical Resistance 1 l 1 How to order (Standard version) 1 GN654-381 1 l 1 How to order (High chemical resistance) 1 GN654.1-254 Owing to the U-rail and the cover, oil level indicators GN 654 / GN 654.1 are extremely stable and are therefore suitable for great lengths. The fluid level can also be viewed from the side. Oil level indicators GN 654.1 have a high chemical resistance and are also suitable for media containing or based on glycol. For special requirements in terms of chemical resistance, pressure and temperature resistance, please contact us. see also... • List of Oil Level Indicator Types → Page 1562 • Assembly Sets for Electrical Oil Level Control GN 654.2 → Page 1578 Information • GN 654 Plastic tube Crystal clear Polycarbonate (PC) - - Temperature resistant up to 100 °C - - Alcohol resistant - - Not solvent resistant O-ring, rubber NBR (Perbunan ® ) Set screw, steel, zinc plated • GN 654.1 Glass tube Borosilicate glass (Pyrex ® ) - - Temperature resistant up to 130 °C - - Highest mechanical and thermal resistance O-ring, rubber FKM (Viton ® ) Set screw, stainless steel AISI 303 Following information applies to both standards: • U-rail Aluminum, anodized, natural color • End pieces, Technopolymer (Polyamide PA) - - Black, matte finish - - Temperature resistant up to 130 °C • Cover Plastic, crystal clear Polycarbonate (PC) • RoHS Specification • Other lengths l 1 • With temperatue display • With electrical temperature monitoring On request 1 l 1 b d l 2 l 3 l 4 l 5 l 6 l 7 s ≈ Max. wall thickness GN 654 GN 654.1 -  76 33 M 10 20  42 113 17 18,5 33 12 127 127 33 M 12 20  71 164 28 18,5 33 10 176 176 33 M 12 20 120 213 28 18,5 33 10 254 254 33 M 12 20 198 291 28 18,5 33 10 381 381 33 M 12 20 325 418 28 18,5 33 10 508 508 33 M 12 20 452 545 28 18,5 33 10 Original design HCK./HCK-GL