The sales of Daqing Refining and Chemical Products fully highlight the specificity, diversity and high-end nature. In March this year, its sales of PA14D increased from 18,000 tons planned to 26,000 tons, an increase of 98.4 million yuan. High-end polypropylene products take a dominant position. In the second half of 2011, due to the downward trend of domestic real estate sales, the market demand for PA14D products was greatly reduced. To this end, the company's marketing department has worked closely with the five major chemical sales companies in the Northeast, East China, South China, North China, and Southwest, and has always paid attention to market trends, and has sent marketing personnel directly into the South China and East China end markets. Because PA14D's performance indicators are superior to foreign mainstream products, Daqing Refining & Chemical's market share in East China has reached about 70%. PA14D products are special materials for producing PPR tubes. Due to the high cost performance, it is currently the largest domestic water supply pipe used in home improvement. The working principle of hydraulic gear pump is that when the gear rotates, the volume of the space on the side of the gear becomes larger from small to form a vacuum, and the liquid is inhaled. The volume of the space on the side of the gear meshes from large to small, and the liquid is squeezed into the pipeline.
In terms of terms, gear pump is also called positive displacement device, that is, like a piston in a cylinder, when a tooth enters the fluid space of another tooth, because the liquid is incompressible, so the liquid and tooth can not occupy the same space at the same time, so that the liquid is mechanically squeezed out.
New aftermarket hydro gear pump commonly used in lawn mowers/Massey Ferguson Tractor/zero-turn Ztr.
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