Immersion Heaters ROTKAPPE® 100 The Immersion Heater Tube We can offer you the optimum material for every application. The heated length (minimum immersion depth) is marked by a ring which is generally two-thirds of the tube length. The tube is not heated above this mark. The heated portion must always be covered with liquid even in the case of high liquid level fluctuation. The Long-Life Heating Cartridge Long-life heating cartridges are made from ceramic groove bodies with high electrical insulation values and good mechanical strength. The BC terminal casing for immersion heaters consists of high temperature stabilized PP. Problemfree use in most process liquids is ensured by good mechanical and thermal strength as well as wide ranging chemical resistance. The PVDF terminal casing (BC/L) is recommended in cases of extreme temperature (liquid temperature >80°C) or when subjected to strongly oxidizing chemicals (e.g. chrome electrolyte or HNO3). The protective casing is IP 65 (jet-waterproof) according to EN 60529. Easy access to the terminal (after fitting) when connecting the lead is also ensured by unscrewing the cap with the mounting wrench SB. The PVC connecting lead is with a standard length of 1.6 m. Other lead lengths can be provided if desired. Minimum Immersion Depth (heated) The ROTKAPPE immersion heater is constructed on a modular basis and consists of a tube, a long-life heating cartridge, a terminal casing and the lead. ROTKAPPE Immersion Heaters are most suitable for direct heating of nearly all process liquids and corresponding applications. Excellent chemical resistance is ensured by the use of different immersion tube materials and variable fitting options help you to meet the individual requirements of heating installations. A long life span with optimum reliability is assured by using high quality materials thereby ensuring faultless operation of your system. Electrical Safety Immersion Heaters are classified as devices of Immersion Heater ROTKAPPE protection class 1. All metal parts that are not protected from human contact are securely connected to earth. Using non-conductive tubes made of porcelain or glass, a “protective coil“ is also fitted to the heating cartridges in order to earth these tubes. The highest possible electrical safety is therefore ensured by using an earth leakage circuit breaker (ELCB). ROTKAPPE immersion heaters type B-... carry the VDE label. Please note that the user-side equipment of overtemperature and dry protection in plants and containers with electrical heating systems are required. This can be done with our float switches, level probes and corresponding electronics are optimally realised. We will be pleased to advise you on these safety-related issues! A high temperature resistance heating wire is fitted as a coil in order to achieve the best possible heat radiation from tube to liquid. The cartridges for immersion heaters are available in rated power voltages up to a maximum of 500 volts for one, two and three phase conn

ROTKAPPE Immersion Heater Overview The chemicals in your treatment liquids demand the utmost chemical resistance of the materials used. When choosing the materials the physical processes (possible encrustment) and thermal limits (surface power density) have to be taken equally into consideration. The advantages and disadvantages of the individual materials are illustrated in the chemical resistance list. The following table gives an overview of the standard types available. The specific surface power density for the immersion heater tube is stated in W/cm2 according to the minimum immersion depth...