New Peripheral Pump Household Use

PropertyCast IronBrassStainless SteelCostLowest (≈$2/kg)Medium (≈$6/kg)Highest (≈$3.5/kg, 304 SS)Corrosion ResistancePoor(requires epoxy coating)Moderate(fresh water/weak acid)Excellent(seawater/strong acids)Media CompatibilityWater, oil (pH 6-8)Potable water, mild liquidsChemicals,seawater,chlorina

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(

In residential water systems, vortex pumps solve low-pressure issues in high-rises and old communities. When mains pressure drops below 2 bar, they instantly boost it to 4-6 bar, ensuring steady water flow for showers and kitchen use.Key AdvantagesUltra-quiet (<40 dB) - Non-contact impeller design,