13.9 Technical data for natural gas as actuator medium
Introduction
Note when using an actuator with natural gas that this can escape at the exhaust air outlets.
① Base plate ③ Exhaust air outlet sound absorber
② Exhaust air outlet enclosure ventilation ④ Exhaust air outlet near the pneumatic connections
Note
The following applies for exhaust air outlet with sound absorber ③:
The positioner is supplied as standard with a sound absorber. To provide an outlet for the
exhaust air, replace the sound absorber by a G¼ pipe coupling.
The following applies for enclosure ventilation ② and control air outlet ④:
1. With the "flameproof enclosure" device version in an aluminum enclosure with order suffix
-Z K50 "Operation with natural gas", you can completely collect and discharge the escaping
natural gas.
2. In all other device versions, the escaping natural gas is released into the environment.
Maximum values for escaping natural gas
● The quantity of escaping natural gas is negligible during regulated operation.
● If a control error occurs, a maximum of 30 Nl/min of natural gas will escape at the enclosure
vent ② and a maximum of 89 Nl/min at the control air outlet ④.
See also
Lever for position detection (Page 107)
Technical data
13.9 Technical data for natural gas as actuator medium
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC 289
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