Asphalt insulation gear pump installation should pay attention to: 1, the installation should pay attention to the arrow on the valve body should be consistent with the media flow. Do not install in places with direct dripping or splashing water. Asphalt heat pump should be installed vertically upwards. 2, asphalt pump should ensure that the supply voltage is within the range of 15% -10% of the rated voltage fluctuations within the normal work. 3, asphalt insulation pump installed, the pipeline may not have the reverse pressure. And need to power several times to make it suitable for temperature before formally put into use. 4, asphalt insulation pump should be thoroughly cleaned before installation of the pipeline. Access to the media should be free of impurities. Pre-filter valve. 5, when the bitumen insulation pump failure or cleaning, in order to ensure the continued operation of the system, the bypass device should be installed.