Three screw pump selection, to be as detailed as possible to understand the conditions of the pump, in addition to the operating parameters, such as flow, pressure needs to be clear, the characteristics of the transmission medium such as media corrosivity, gas content, solid solution containing the ratio And the size of the solid particles, as well as the medium temperature, viscosity, specific gravity, corrosive materials such as pumping equipment and suction conditions, installation conditions should be understood, according to our experience, three screw pump selection should pay attention to the following Point: 1, the choice of three screw speed 1.1, to determine the transmission medium viscosity and pump speed range: When conveying high viscosity medium, the pump should be selected low speed, if the viscosity is low, the corresponding choice of high speed: medium viscosity> At 20 ° E, the speed is reduced to 970 rpm or 720 rpm for large size three-screw pumps (main bar outside diameter 60 mm and up). If the viscosity is higher (viscosity> 80 ° E) 200-500rpm recommended; for small size three-screw pumps, medium viscosity> 20 ° E, the speed of 1450rpm or 970rpm is appropriate, if the viscosity is higher (viscosity> 80 ° E ), Can reduce the speed of use, recommended 300-600rpm; 1.2, due to the higher pump speed, the same performance parameters, the smaller the pump size, but because of high speed, high friction power, pump wear, life Short, if the transmission medium lubrication is relatively poor or contains trace impurities, should choose a lower speed, so that the pump to maintain a longer life, recommended below 1450rpm. 2, the choice of structure can be based on the installation and use of the pump reference to the three screw pump series and type, in principle: 2.1, conveying lubricated oil, the temperature below 80 ° C select the built-in bearing structure of the pump; 2.2, The pump with external bearing structure is selected when the temperature is over 80 ° C or the lubrication of the conveying medium is poor; 2.3, the pump with poor fluidity and high viscosity or the pump with double-layer heating structure is selected when the medium to be conveyed needs heating or heat preservation ; 2.4, high temperature transport, should choose the pump made of high temperature materials, please contact our factory.
The bar can also be made into square shape , commonly known as Titanium Square Bar. Its production process is through hot or cold rolling .The Size of width and thickness could be from 6 x 6mm to 100x100.mm,and the length up to 6000mm. Many of material grades are available: Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr12, Gr23. We could produce the material as per different specification: ASTMB348, ASMESB348, ASTM F67, ASTMF136 ,ISO5832-2, ISO5832-3, AMS4928, MIL-T-9074G.
Titanium Square Bar
Titanium Square Bar,Pure Titanium Square Bar,Gr5 Titanium Square Bar
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