Note
The tee fitting positioning may vary, but is often found at the inlet of the carrier gas
regulator and is commonly accompanied with a reducer to take the tubing size
down to ⅛-in.
4. Choose a position to mount the carrier shut off valve on the back frame rail.
This position should be between the carrier gas inlet fitting and the carrier gas
regulator.
5. Connect a ¼-in. tubing from the tee to the input port of the SSO valve.
6. Connect the output port of the SSO valve to a ¼-in. piece of stainless steel tubing to
the input port of the new Parker pressure regulator, 10-100 psig (P/N
2-4-5001-977).
7. Use a ⅜-in. national pipe thread (NPT) to ⅛-in. Swagelok fitting to connect the
actuation gas line located at the top port of the SSO valve.
8. Connect a piece of ⅛-in. tubing from the actuation port of the SSO valve to the ⅛-
in. bulkhead fitting.
This is the actuation gas input port.
9. Connect the actuation line (N2) to the ⅛-in. input port.
Figure 2-2: Carrier Gas Pneumatic Connections
A. Actuation line (N
2
)
B. Carrier gas line, stainless steel, ¼-in. tubing
C. Tee
D. Carrier gas input (H
2
)
E. Blocking valve
F. ⅛-in. bulkhead, stainless steel
G. Parker pressure regulator
H. Stainless steel, ¼-in. tubing
I. Shut-off valve
Retrofit Instructions
Installation
SK-07781 September 2019
Rosemount Model 500 Helium to Hydrogen Gas Conversion Kit 11
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