"A" Station:
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The "A" station is the primary control center for heating and pressurizing the pipeliner. The "A" station contains the steam (blue) and compressed air (yellow) inlet valves, as well as temperature and pressure gauges to monitor the combined influence of the steam and air. Extra precautions should be taken to ensure the proper functioning of the "A" station gauges. Installations should not be attempted with broken or improperly functioning gauges.
The "A" station operator must be intimately familiar with the specific combinations of steam and air required for the steam truck being used. The required combination of steam pressure and air pressure to reach the target installation temperatures is unique to each steam truck and can only be accomplished with properly functioning "A" station gauges. |
"A" Station Temperature Gauge:
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The "A" station temperature MUST be monitored independently from the boiler temperature. |
"A" Station Pressure Gauge:
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The "A" station pressure MUST be monitored independently from the boiler pressure. |
"B" Station:
 
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Although the "B" station is not actually part of the boiler truck, the integral relationship between the "B" station and the "A" station needs to be addressed herein. The "B" station operator must closely communicate and work with the "A" station operator to control the processing temperature and pressure. The "B" station operator is in the best position to recognize the need for alterations to the volume of steam and/or air as released from the "A" station.
The "B" station flow control valve (yellow handle) together with the "B" station pressure and temperature gauges are the primary means of monitoring and controlling adequate temperatures and pressures during the installation process. Extra precautions should be taken to ensure the proper functioning of the "B" station gauges. Installations should not be attempted with broken or improperly functioning gauges. |
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