Taylor-Wharton RS-234 User Manual
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1.
Leak test joints between the high pressure cylinder regulator and the dump valve. Joints must be leak free
before proceeding.
2.
Close the on/off valve. Open the dump valve.
3.
Open the high pressure cylinder valve.
4.
Set the high pressure regulator above the desired set point for the economizer.
5.
Slowly open the on/off valve for a few seconds and then close it.
6.
When the regulator under adjustment closes, the economizer set point is indicated on the upstream
pressure gauge.
7.
To reset the regulator, loosen the lock nut on the adjusting screw. Raise the setpoint by turning the
adjusting screw clockwise; lower the setpoint by turning the screw counterclockwise. After adjustment,
repeat steps 5 and 6 to check the setting before reinstalling the regulator on the liquid container.
Note: The range of adjustment is 75 to 175 psig (5.2 to 12.1 bar). Do not attempt to set the regulator to a pressure
outside of its design range.
Note: Both regulators have directional gas flow. The arrow on the regulator body must point in direction indicated
in the Bench Adjustment Fixture illustration.
Economizer Valve Removal/Installation
1.
Close the ISOLATION VALVE (V-4) and the PRESSURE BUILDING VALVE (V-5).
2.
Loosen the tube connection nut below the ECONOMIZER REGULATOR (R-2). Allow pressure to
completely bleed from the tube. Remove the tube.
3.
Remove the regulator from the container by loosening the tube connection nut above the regulator.
4.
Repair the regulator or adjust its setpoint using the bench test setup.
5.
Reconnect the tube connections to the regulator and tighten.
6.
Open the ISOLATION VALVE (V-4) and the PRESSURE BUILDING VALVE (V-5) and check for leaks.
Instruments
User adjustment of the pressure gauge or liquid level gauge is not possible. If the gauges are malfunctioning, they
must be replaced. Close both isolation valves (V-6 and V-7) and immediately open the equalization valve (V-8).
Loosen one of the tube compression fitting nuts to reduce pressure. When the pressure gauge (G-1) indicates zero it is
safe to work on the circuit.
Vacuum
Cryogenic containers are two containers, one within the other. The space between the containers acts as a highly
efficient thermal barrier including high technology insulation, a vacuum, and a vacuum maintenance system. Each
serves a very important part in the useful life of the container. The high technology insulation is very effective in