sentative period of time t is calculated for For B2-SV-11-D Bevel-helical gear units B2

Flender/Flender Gear Units/Bevel-helical gear units B2

list of the selection of the coating system based on the corrosivity category for the standard protection lifetime class "medium".If the required corrosivity category is not known, it is possible to determine the corrosivity category and the recommended coating system in the configurator based on the climatic load (.. sea climate, tropics, etc.) and application (.. conveyor system, cable railways, wastewater treatment, etc.). Coating systems for the alternative protection lifetime classes "low" and "high" can also be selected by means of the configura- tor. If there are any special requirements for the coating system beyond this, please contact Flender. Description of the corrosivity categories Based on ISO 1-2, the atmospheric ambient conditions have been divided into five corrosivity categories. These are described below. Selection of the coating system When selecting the coating system based on the corrosivity category determined or specified by the customer, you must consider whether explosion protection acc. to ATEX 2/3/EU is required.If explosion protection according to ATEX 2/3/EU is required for areas of the explosion subgroup IIC or with minimum ignition energy 3 mJ, then it is essential to select an electro- statically conductive coating (order codes B8, B8, B of the relevant corrosion category. Assignment of the coatin system to the corrosivity category (protection lifetime class medium)Corrosivity category Description C1 Normal environmental pollution Indoor installation Heated buildings with neutral atmosphere C2 Low environmental pollution Indoor and outdoor installation Unheated buildings with condensation, production areas with low humidity, .. warehouses Atmospheres with little pollution, rural areas C3 Average environmental pollution Indoor and outdoor installation Production areas with high levels of humidity and some air pollution Urban and industrial atmospheres with moderate sulfur dioxide loads Coastal areas with low