PSG Process Extruded ATEX³: self-regulating ATEX sample line with dissipative TPU outer jacket
The PSG Process Extruded ATEX³ is developed for continuous extractive gas analysis in the most demanding potentially explosive environments, where full protection against electrostatic charging is required. 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 ATEX³ is suitable for use in Ex zones 1 and 2 in environments with the strictest requirements for explosion protection and antistatic protection. Typical applications are the chemical and petrochemical industries, offshore installations, gas compressor stations and other environments where both the heating cable and the complete line assembly must meet ATEX requirements.
Technology
The line has a thick-walled extruded dissipative TPU outer jacket, flame-retardant and extremely weather-resistant. The difference from the ATEX² version: on the ATEX³, the TPU outer jacket itself is dissipative, so electrostatic charge is dissipated directly through the jacket without an extra aluminium layer. This is PSG's patented Ex³ technology. Heating is provided by high-grade self-regulating Raychem® heating cables certified for ATEX zones. 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
- Certified for use in Ex zones 1 and 2
- Patented Ex³ technology with dissipative TPU outer jacket without static charging
- 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 dissipative TPU outer jacket (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)
ATEX certification of heating cable
| Holding temperature | Cable type | Ex class | Temperature class |
|---|
| 30 °C | 5BTV | II 2G Ex e IIC / II 2D Ex tD A21 IP66 | T6 |
| 100 °C | 12XTV | II 2G Ex e IIC / II 2D Ex tD A21 IP66 | T3 |
| 120 °C | 15XTV | II 2G Ex e IIC / II 2D Ex tD A21 IP66 | T3 |
Technical specifications
| Feature | 30 °C | 100 °C | 120 °C |
|---|
| Heating cable type | 5BTV | 12XTV | 15XTV |
| Insulation thickness | 10 mm | 10 mm | 14 mm |
| Outer diameter | 40 mm | 40 mm | 44 mm |
| Max. power (ta +10 °C) | 16 W/m | 38 W/m | 47 W/m |
| Max. heating circuit (32A) | 160 m | 135 m | 105 m |
| Max. operating pressure PTFE DN4/6 | 10 bar | 8 bar | 6 bar |
| Max. operating pressure RVS316L | 400 bar | 400 bar | 400 bar |
