Miller Electric OM-230 Operations Instructions download pdf (Page 14)

OM-263 230 Page 12

Use an approved oil-free leak detection fluid to locate possible

leaks at the inlet, any threaded port, through the regulator di-

aphragm or through the outlet valve. PTFE tape is an accept-

able pipe thread sealant. If other sealing materials are pre-

ferred, those materials must be compatible with the gas that is

being used in the system.

9. If a leak is indicated, relieve all pressures from the regulator and

retighten the connections.

Do not use the regulator if a leak continues or is found at the

diaphragm or outlet valve.

10. If the system is determined to be leak free, turn the adjusting handle

clockwise until the desired pressure setting is indicated on the de-

livery pressure gauge.

11. Open the outlet valve to purge the system. Adjust the regulator ad-

justing handle to obtain the desired pressure setting at the flow con-

ditions.

NOTICE − A regulator is not intended to be used as a shut−off device.

Close the cylinder valve when system is not in use. Install a pressure re-

lief device downstream of the regulator or outlet valve to protect the

process equipment if operating pressures rise.

SECTION 8 − SYSTEM SHUTDOWN

1. Close the cylinder valve.

2. Release all gas from the regulator and/or system so that both

gauges read zero (0). If the gas is flammable, an oxidant, corrosive,

or toxic, take appropriate measures to render it harmless by em-

ploying a suitable disposable system before venting the gas to the

atmosphere.

3. Turn the adjusting handle counterclockwise until all spring load is

released or the adjusting handle reaches the mechanical stop.

4. Close the outlet valve.

5. Disconnect the regulator.

6. If the regulator is to remain out of service, protect the inlet and outlet

fittings from dirt, contamination or mechanical damage.

7. Replace the cylinder valve cap.

SECTION 9 − PERFORMANCE

CHARACTERISTICS

The following information is intended to help you determine if the regula-

tor is performing properly.

A. Indications Of Proper Performance

D The delivery pressure drops when flow is started and/or increased.

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Miller Electric OM-230 Operations Instructions Page 14