What do we have in the selection of the manufactures of unsealed self - priming pumps
(1) &ldquo in the performance parameter list; category code ” the 1-5 meaning of the column: 1 is rectangular, 2 is cone, 3 is explosion-proof, 4 is outdoor, 5 is cart mobile. “ material symbol ” in the column T, G, PP, BXG four groups of letters respectively: iron, steel, reinforced polypropylene, stainless steel (1Cr18Ni9Ti) four kinds of material.
(2) examples of model significance:
50 WFB-AD1
AD1 performance classification of 50 mm WFB non sealed self-priming pump
(3) complete model of model writing. It is assumed that the requirements of the pump are: the model is the moving type of the cart, the material is reinforced polypropylene, the suction caliber is 50mm, and the performance is classified as AD1. The complete model of this pump is “ 5PP50WFB-AD1”
(4) the flange of the pump is made by the national standard of People's Republic of China. Standard code GB9115.2-88; GB9115.3-88. The flange pressure of the non-metallic water pump is 0.6MPa; the flange pressure of the metal water pump is 1.0MPa. When the water pump is out of the factory, a reverse flange is fitted to the inlet and outlet. What is the method in the model
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