Immersion heater | ATEX gas / dust zones | RFA-C type
The RFA-C immersion heaters in flameproof enclosures. The devices are ATEX and CU TR certified. The products are intended for heating of process media. They can be installed in processing tanks and other equipment operated in explosive gas or dust atmospheres. The heaters are intended for vertical installation and horizontal installation orientation versions are available on request. The heater can be installed with a threaded end or a flanged connection port.
We will answer questions about: offer, technical specification, delivery, assembly.
The RFA-C electric cartridge immersion heater is ATEX-certified for use in Zone 1 and 2. The standard versions of the product can be supplied with any electrical power source up to 690 V (600 V CSA). Each heater is provided with a heavy-duty terminal box for easy and secure wiring. The terminal box can be installed away from the heating element assembly, which enables operation at high temperatures. The product’s design ensures fast installation in processing pipelines (with a threaded end or a standard connection flange).
The heater is designed for long, heavy-duty operation (with a rating of IP66 or IP67). The robust enclosure is made from epoxy-coated aluminium. This series of heaters is intended for different media, mostly oils and similar chemicals which require a low heat density. The RFA-C are most often used in processing tanks and other equipment types which requires heating of the process media.
The heating element is a high-quality, NiCr (80/20) resistance conductor. It is installed in a sheath of carbon steel or stainless steel grade 316L filled with magnesium oxide powder which provides electrical insulation and an extremely good heat transfer coefficient. The seal is provided by hard brazing or fusion welding, depending on the process medium and processing parameters specified.
The product is supplied with one 20 mm cable gland and one 25 mm cable gland. The standard version features overtemperature protection and external and internal earthing connections.
The permitted ambient operating temperature of the heaters ranges from -40˚C to +40˚C.
- ATEX: certified for operation in potentially explosive gas atmospheres (Zone 1 and 2)
- Installation: threaded end or flanged connection
- Supply voltage: 690 V maximum
- Rated power: 8 kW maximum
- Casing material(s): powder-coated aluminium
- Heating element: high-quality NiCr resistive wire in carbon steel or stainless steel grade 316L sheath, filled with magnesium oxide powder
- Control: Ex-proof thermostat control (optional)
- Ingress protection: IP66 or IP67
- Ambient temperature: -40˚C to +40˚C
- Installation orientation version for vertical pipelines
- Stainless-steel version
- Processing tanks
- Emergency decontamination showers
- Engine oil pans
- Pressure vessels
- ATEX
II 2 G - Ex d IIC T3 to T6 Gb Zone 1 i 2
- CU TR (EAC)
