Double-sides
spiral submerged arc welded pipe machine is main product in our company, after several
years of exploration and continuous improvement, the spiral welded pipe mill`s
technology level has been in the leading position in the world, it is also the
most reliable and loyal partner of steel pipe factories.
Spiral Pipe Machine,Spiral Welded Machine,Spiral Pipe Mill,Spiral Welded Pipe Machine Taiyaun JDS Machinery And Equipment Co., Ltd. , https://www.ccagoods.com
Advantages, Disadvantages and Features of Screw Pumps
1, the advantages of screw pump performance: 1) good inhalation performance, with good self-priming capability; 2) the flow of continuous and uniform, low noise, less vibration, transport liquid types and viscosity range; 3) Because of the low inertia of the rotating components in the pump; 4) wide range of pressures and flow rates. Pressure range of about 3.4-340 kgf / cm2, flow up to 18600cm3 / min; 5) solid structure, easy installation and maintenance. 6) Compared with other rotary pumps, it is not sensitive to gas and dirt entering. 2. Screw pump performance Disadvantages: The performance of the pump is sensitive to the change of the viscosity of the liquid. Screw pump machining and assembly requirements are higher; 3, screw pump features: 1) With the governor can achieve the amount of automatic adjustment, flow and speed proportional. Screw pump can be forward and reverse delivery. 2) The volumetric cavity formed by the elastic stator can effectively reduce the abrasion when conveying the medium containing solid particles. 3) The volume of the fluid flowing in the pump does not change, there is no Rui flow agitation and pulse. 4) can achieve liquid, gas, solid heterogeneous mixed transport. 5) Enter the medium viscosity up to 50000Mpa · s solid content up to 50%. The stator and rotor contact screw seal line will be completely separated from the income chamber and the discharge chamber, so that the pump has the valve of the partition. Screw pump has the following advantages: 1, screw pump and gear, screw pump can deliver high-viscosity substances. 2, And piston pump, diaphragm pump and gear pump is different, the screw pump can be used for filling and metering pharmaceuticals. 3, compared with the centrifugal pump screw pump without the need to install the valve is a steady flow of linear flow. 4, compared with the diaphragm pump screw pump can convey a variety of mixed impurities containing gas and solid particles or fibers of the media, but also convey a variety of corrosive substances. 5, compared with the piston pump screw pump with self-absorption ability, high suction height.