Haiyunda Pump Industry (Yancheng) Co., Ltd.

1： The suction capacity of the vacuum pump is ≤ 80M ³/H, and the suction height is ≤ 8.5 meters. The applicable pipe diameter is DN65-DN500, and the pumping rate for different pipe diameters is 8-45 seconds to produce water.

2： It can be installed horizontally on the fire pump body or separately.

3： Connect the suction port of the vacuum pump to the outlet pipeline of the fire pump (refer to the installation diagram), and install a gate valve on the outlet pipeline of the fire pump. The working water should be connected to the circulating water tank through pipelines. The water tank should be higher than the vacuum pump, and external working water can also be connected. A working water of 1.5M ³/H and a pressure of 0.2-0.5kg should be provided. A filter screen should be installed at the suction and working water inlet of the vacuum pump to prevent debris from being sucked in and causing damage to the vacuum pump.

4： The vacuum pump is designed with two modes of manual/automatic start The rotation direction is indicated by the arrow and runs clockwise Prohibition of water transportation without work.

Manual mode, press the start button, the contactor (KM) is closed, the vacuum pump runs, and the solenoid valve (ST) automatically opens to start pumping When water is discharged from the exhaust port of the vacuum pump, start the fire pump, press the vacuum pump stop button, the vacuum pump stops running, and the solenoid valve automatically closes The fire pump is working normally.

In automatic mode, when the start button is pressed, the contactor (KM) and solenoid valve (ST) are simultaneously powered on, and the vacuum pump starts to work. When water is discharged from the exhaust port, the water flow switch (XK) is activated, the intermediate relay (KA) is instantly closed, the normally closed point (KA) is disconnected, the contactor (KM) and solenoid valve (ST) are de energized, and the vacuum pump stops working (KA) The normally open point provides a passive signal to the fire pump control box, and the fire pump automatically starts and runs.