How to ensure water is completely drained for winter anti-freezing protection
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1. How to drain water from steam tracing pipelines (there are many U-turns, making it difficult to drain water from the dead corners). 2. How to drain water from flow meters
I’ve always thought that one could heat it with steam and then turn off the steam. The flowmeter should have a low-point vent; if that’s not possible, the flange should be removed.
It can be purged with factory air. . . . . . . . . . . . . . . . . .
Using compressed air for a prolonged period of time will certainly achieve the desired result, but sometimes it is necessary to attach a hose to the exhaust outlet and perform manual operations by repeatedly extending and retracting the hose in order to artificially adjust the pressure, which yields better results!