At tank heating sites in explosion-proof areas, condensation in the terminal enclosure and excessive surface temperature are common feedback from procurement personnel. The following Q&A focuses on the application of the FBR-58 stainless steel explosion-proof heating rod.
A: The housing is made of stainless steel, and the terminal enclosure is designed with a flameproof structure, making it suitable for Zone 1 and Zone 2 hazardous locations where Class IIA and IIB flammable gases or vapors are present. Common scenarios include heating of chemical raw material tanks, anti-solidification of oil pipelines, and auxiliary heating of reactor jackets. During procurement, it is necessary to verify whether the on-site gas group matches the explosion-proof marking of the equipment.
A: The power of a single unit can be combined as needed within the range of 1 to 6 kW, with a rated voltage of 220V or 380V. For media with higher viscosity, it is recommended to appropriately reduce the power density to avoid local overheating and coking; for media with better fluidity, conventional power density can be selected to control procurement costs. Specific parameters are subject to the ordering technical agreement.
A: The heating rod should be fully immersed in the medium or installed in a flow area to avoid dry burning. The fastening bolts of the terminal enclosure should be tightened evenly in a diagonal sequence, and the sealing rings should be inspected and replaced regularly. During shutdown maintenance, first cut off the power supply and wait for the housing to cool to room temperature before disassembly to prevent damage to the sealing surface.
