18KW 380V 3Phase PTFE In-Line Heater For Heating Chemical NaOH (Sodium Hydroxide) 1.Product Name:In-line PTFE Heater The ultra-pure in-line PTFE heater is mainly composed of PTFE and heating wires externally coated with PFA. Manufactured with premium-grade fluoropolymer materials, these heaters support customized design. All fluid-contact parts are made of non-metallic materials. No harmful contaminant particles or metal ions will be generated during operation, ensuring ultra