PSG Process Extruded ATEX²: self-regulating ATEX sample line with antistatic Ex² technology
The PSG Process Extruded ATEX² is developed for continuous extractive gas analysis in potentially explosive environments where protection against electrostatic charging is also 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 ATEX² is suitable for use in Ex zones 1 and 2 in environments where electrostatic charging is a risk, such as in the chemical and petrochemical industries, gas storage and transport, and other environments with explosive atmospheres and strict ATEX policies. The patented Ex² technology makes this model suitable for applications where the standard ATEX version is not sufficient.
Technology
The line has a thick-walled extruded outer jacket of TPU or PVC, flame-retardant and extremely weather-resistant. To dissipate electrostatic charge, PSG uses the patented Ex² technology: an integrated aluminium layer in the outer jacket ensures reliable conduction and dissipation of static charge. Heating is provided by high-grade self-regulating Raychem® heating cables. 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 Ex² technology for protection against electrostatic 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 outer jacket: TPU 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)
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 |
