2.2 Installing the carrier shut-off valve and
pressure regulator
This procedure describes installing the carrier shut-off valve as well as installing and
changing the pressure regulator.
Refer to Parts list to perform this task.
Procedure
1. Shut off the carrier and actuation gas supply.
2. Wait until the carrier gas pressure gauge reads zero psi.
3. Disconnect the carrier gas tubing from the tee fitting that is connected to the
carrier gas supply.
WARNING
Do not use hydrogen for valve actuation.
Figure 2-1: Current Carrier Gas Line Configuration Using Helium
A. Pressure switch
B. Tee fitting
C. Carrier gas input
D. Carrier gas line
Installation
Retrofit Instructions
September 2019 SK-07781
10 Emerson.com/Rosemount
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