PSG Process Extruded Flex

PSG Process Extruded Flex: self-regulating sample line with small bending radius

The PSG Process Extruded Flex is developed for continuous extractive gas analysis in process environments that require both self-regulation and a small bending radius. The line transports the humid sample gas from the sampling point to the analysis room at a constant temperature above the dew point and acid dew point. This prevents condensation of water vapour on the way, gas components are not washed out and the analyser keeps working reliably, even at outdoor temperatures down to -20 °C (optionally down to -52 °C).

Application

The PSG Process Extruded Flex is suitable for process environments with tight bends, limited installation space or moving parts, where at the same time no external control cabinet is desired. The combination of a self-regulating Raychem® heating cable and an integrated plastic spring wire makes this line unique in its class.

Technology

The line has a thick-walled extruded outer jacket of TPU, PE or PVC, flame-retardant and extremely weather-resistant, reinforced with a plastic spring wire for the small bending radius. Heating is provided by a high-grade self-regulating Raychem® heating cable. The cable consists of two parallel power conductors connected by an electrically conductive polymer. As the temperature rises, the conductivity decreases due to molecular expansion, until the maximum temperature is reached. If the temperature drops, the process reverses. Isolatie is uitgevoerd met glasvezel- of thermisch vlies. Inner tubes of PTFE, PFA, stainless steel or special alloy are available, optionally replaceable.

Functions and options

Because the heating cable is self-regulating, no separate temperature controller is needed. The line is available up to 300 metres in one piece and can be freely cut on site without loss of function. Ready-made lengths ex works are also possible. Standard holding temperatures are 30 °C, 100 °C and 120 °C at -20 °C ambient temperature; up to 150 °C and solutions up to -52 °C are available on request.

Properties

• Very small bending radius (approx. 200 mm, minimum 5 x outer diameter)
• No temperature controller needed
• Raychem® self-regulating heating cables
• Holding temperature 30 / 100 / 120 °C (at -20 °C ambient), optionally up to 150 °C
• Available up to 300 metres in one piece
• Freely cuttable on site or ready-made ex works
• Thick-walled extruded outer jacket: TPU, PE or PVC (flame-retardant, weather-resistant)
• Outer diameter: 40 mm (30/100 °C) or 44 mm (120 °C)
• Inner tube of PTFE, PFA, stainless steel or special alloy
• Degree of protection IP64
• Ambient temperature: -20 to +65 °C
• Up to 12 inner tubes as an option
• Replaceable inner tubes as an option
• Power supply: 230 V 50/60 Hz (optional 120 V)

Technical specifications