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time:2015-01-06 02:11:47 author:特种泵阀 click:519
Asphalt insulation pump refers to a pump that mainly transports asphalt as the medium. According to its working principle, it can be divided into two types: gear pump and rotary pump. The selection mainly depends on the characteristics of the asphalt to be transported. To choose a suitable pump based on the characteristics of asphalt, it is necessary to first understand asphalt: asphalt is a brownish black gelatinous substance, including four types: asphalt, petroleum asphalt, shale asphalt, and coal tar asphalt. The main components are asphaltene and resin, followed by high boiling mineral oil and small amounts of oxygen, sulfur, and chlorine compounds. Glossy, in liquid, semi-solid or solid state, brittle at low temperatures, adhesive and performance.