Manual CWD 2005 Installation
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Manual CWD2005.doc 31
Figure 12: High-pressure regulator GO PR1 < 250 bar (3600 PSI)
1 Inlet 2 Ou
3 Gauge high pressure 4 Gauge, low pressure
5 Pressure control wheel
The last is a primary regulator < 250 bar (3600 PSI) with a 316 SS body and gauges
adjustable outlet pressure from 0 3.4 bar and has a gas cylinder CGA connection.
Hydrocarbons W 21.8 x ¼
Mixed gas M19 x 1.5 LH DIN 477 Nr.14 or CGA sized fittings.
A pre-pressure regulator is still required after the high-pressure calibration gas
cylinder regulator, for two-stage inlet pressure control.
Figure 13: High-pressure regulator GO PR1 < 250 bar (3600 PSI)
1 Inlet connection to suit gas cylinder 2 O
3 Gauge high pressure 4 Gauge low pressure
5 Pressure control wheel
4.5.3. Sample gas pump
If the process gas inlet pressure is lower than recommended then a sample gas
pump should be installed to boost the sample gas pressure. Gas at higher pressure
can then be regulated, so that the recommended gas pressure is maintained at the
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