Item name: transparent hole

The light transmitting hole is arranged at the top of the tank, and is used for lighting and ventilation when the oil tank is installed and cleaned.

The lighting in the tank on the tank top, usually 500mm diameter hole, usually have to bolt tightly closed Gaihuan hole. Used for lighting, ventilation and exhaust in the cleaning of the tank. In addition, when the operating device of the safety valve fails, the safety valve can also be opened by using a cable attached to the light transmitting hole.

When the tank top is only set up a transparent hole, should be located at the inlet and outlet pipe above the line on the tank top; two light holes, then light hole and manhole as possible along the circumference of the symmetrical distribution for lighting and ventilation, but at least one light hole is arranged at the top of the tank near the platform. The outer edge of the pervious hole shall be 800~1000mm away from the tank wall.

The upper part of the transparent hole is connected with the breather hole, and the blind plate is closed at the moment. When the oil tank is repaired and repaired, the blind rim of the blind disk is opened and the air vent is connected, and mechanical ventilation can be carried out in the tank.