A safety valve is arranged at the exhaust port of the sealed oil tank, the safety valve inlet is set to drain, and the oil injection port is set with an orifice. Set as shown below:
Seal the tank exhaust port to set the safety valve, the safety valve inlet set to release, the injection port to set the hole plate. Here's how to set it up:
A safety valve is set at the exhaust port of the sealed oil tank, a drain valve is set at the inlet of the safety valve, and an orifice plate is set at the oil filling port. As shown in the figure below:<br>