Under-tank sampler refers to the sampling facility used to collect oil samples in petroleum storage tanks, and includes two parts ---outside and inside. Outside the tank is mainly the operation control box, including connection pipes, flanges, and operation valves (with emergency shut-off valves, multi-position directional valves, manual pumps and sampling valves, etc.) in the operation box. , To avoid the harm of toxic and harmful samples to the operator; the inner part of the tank mainly includes equal-scale telescopic racks, upper sampling tubes, middle sampling tubes, lower sampling tubes, connectors (floating balls), tank bottom welding supports, connection soft Tube etc.
