Introducing our patented technology aluminum casting technology with a picture of product sample. The picture shows the beveled sections of two different rotors without shafts,one of them using our patented aluminum casting technology,the other one using traditional aluminum casting technology.
When you wonder if an air pump or a water pump is better, the answer really depends on what you need at home. Air pumps move air, while water pumps move water—each has its own job. Many homeowners pick a pump for reasons like energy savings, quiet operation, or year-round comfort.Reason People Choos
Introducing our patented technology aluminum casting technology with a picture of product sample. The picture shows the beveled sections of two different rotors without shafts,one of them using our patented aluminum casting technology,the other one using traditional aluminum casting technology.
When you wonder if an air pump or a water pump is better, the answer really depends on what you need at home. Air pumps move air, while water pumps move water—each has its own job. Many homeowners pick a pump for reasons like energy savings, quiet operation, or year-round comfort.Reason People Choos
PropertyCast IronBrassStainless SteelDensity(g/cm³)7.28.47.9Tensile Strength(MPa)250-400 (QT500)250-350 520-800 (316L)Damping Factor0.03-0.05 (best)0.01-0.020.005-0.01 (worst)Thermal Conductivity(W/m·K)40-5510915-20Thermal Expansion(10⁻⁶/K)111816-18Corrosion ResRequires coatingResists moistureExcell
PropertyBrassStainless SteelPPO PlasticDensity(g/cm³)8.47.91.06Tensile Strength(MPa)250-400520-800 (316L)65-85 (120 w/ glass fiber)Max Temp(℃)200400 (316L)110 (peak 130)Corrosion ResWeak in S/NH₃ mediaExcellent (PREN≥35)Resists all acidsCost★★★☆☆ (≈$21/kg)★★★★☆ (≈$6.3/kg)★★☆☆☆ (≈$11/kg)Max Velocity(
