This device is designed on the standard GB/T50123-1999 (vacuum pump optional). It is made from stainless steel , Plexiglass volume (¢300 x300mm height)(¢200x200mm height) and light weight.
Connect the device with vacuum rubber pipe and vacuum pumps (air-ejecting fan). And before power on,
1. First, close the two valves on cover (one vacuum valve, one injecting valve)
2. Load on the cover a little, start the vacuum pump, slowly open the vacuum valve (too fast to fuel injection of vacuum pump). At this point vacuum pressure gauges are showing the vacuum value, the device is working.
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