Resistant to aggressive media. For heating liquids, acids and chemicals by infrared radiation. Heat resistant. Maximum energy consumption: By infrared radiation - the cladding tube is infrared-permeable By heat conduction - the jacket tube made of quartz glass allows a particularly good heat transfer Temperature resistance: Since quartz glass has virtually no heat expansion, such immersion heaters are particularly heat-resistant. Acid resistance: Quartz glass immersion heaters are almost resistant to acids other than phosphoric acid above 300 ° C and hydrofluoric acid. They are therefore particularly well suited for the direct heating of chemicals in laboratory and electroplating. Electric security: The quartz glass cladding is an excellent electrical insulator - safe contact protection, optimum electrical safety by grounding the interior. The immersion heaters comply with the EC directive 89/336 / EWG and the EC directive 73/23 / EWG. All immersion heaters are supplied with a 1.50 m long silicone connection cable and a PVC plug. They are designed for 230 V. Customized designs and electrical power are available.