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316 SS Precision Pump Impeller for Water represents the gold standard in fluid handling components, engineered to deliver exceptional performance in municipal water treatment, industrial processing, and agricultural irrigation systems.
Chifine
As the heart of centrifugal pumps, this impeller converts rotational energy into hydraulic pressure, requiring precise geometry, corrosion resistance, and mechanical strength to maintain efficiency over extended service life. Our 316 stainless steel impellers outperform 304 SS alternatives in harsh water environments, particularly those containing chloride, sulfur, or other aggressive contaminants. With ISO 9001:2015 certification and compliance with ANSI B73.1 standards, we supply pump manufacturers and water utilities with components that consistently meet flow rate, head, and efficiency specifications, even in demanding applications like seawater desalination and wastewater treatment.
Crafted from 316 stainless steel (UNS S31600) per ASTM A240 standards, our impellers feature a superior chemical composition: chromium (Cr) 16.0-18.0%, nickel (Ni) 10.0-14.0%, and molybdenum (Mo) 2.0-3.0%—elements that collectively provide exceptional corrosion resistance in chloride-rich environments. The low carbon content (≤0.08%) minimizes sensitization during welding, while controlled manganese (≤2.00%) and silicon (≤1.00%) enhance formability and strength. This material achieves a tensile strength of 58 ksi (400 MPa) and yield strength of 25 ksi (170 MPa), with 40% minimum elongation to withstand the dynamic stresses of high-speed rotation (up to 3,600 RPM). Certified material test reports (CMTRs) are provided for every production batch, verifying chemical composition and mechanical properties.
Precision machining of blade profiles and leading edges reduces cavitation erosion, a common cause of impeller failure. Tests per IEC 60609-1 standards demonstrate 90% less material loss compared to standard impellers after 1,000 hours of operation in low-NPSH conditions.
Advanced 5-axis machining achieves blade tolerances of ±0.02 mm, optimizing flow dynamics and delivering up to 85% hydraulic efficiency—3-5% higher than sand-cast alternatives. This translates to significant energy savings for pump operators.
The molybdenum-enhanced alloy resists pitting and crevice corrosion in water with chloride concentrations up to 10,000 ppm, making it ideal for coastal applications and brackish water systems. Salt spray testing per ASTM B117 confirms no visible corrosion after 96 hours of exposure to 3% NaCl solution.
Dynamic balancing to ISO 1940 Grade G2.5 ensures smooth operation at maximum RPM, reducing bearing wear and extending pump service life by 20% compared to unbalanced impellers.
We offer comprehensive customization to match specific pump designs and application requirements. Our engineering team uses computational fluid dynamics (CFD) to optimize impeller geometry for clients’ unique flow rate (5-5,000 GPM) and head (10-500 ft) requirements, with prototype delivery in 2-3 weeks. Material options include 316L stainless steel (UNS S31603) for even lower carbon content and improved weldability in cryogenic water applications. Impeller diameters range from 50 mm to 500 mm, with custom hub configurations, keyways, and surface finishes (including electropolishing for enhanced corrosion resistance). Production volumes from 50 pieces to 5,000 pieces are supported, with strict dimensional inspection using coordinate measuring machines (CMM) to ensure compliance with client drawings. Additional services include laser marking for traceability, passivation to maximize corrosion resistance, and performance testing in our on-site pump test facility to verify hydraulic performance before delivery.
As the heart of centrifugal pumps, this impeller converts rotational energy into hydraulic pressure, requiring precise geometry, corrosion resistance, and mechanical strength to maintain efficiency over extended service life. Our 316 stainless steel impellers outperform 304 SS alternatives in harsh water environments, particularly those containing chloride, sulfur, or other aggressive contaminants. With ISO 9001:2015 certification and compliance with ANSI B73.1 standards, we supply pump manufacturers and water utilities with components that consistently meet flow rate, head, and efficiency specifications, even in demanding applications like seawater desalination and wastewater treatment.
Crafted from 316 stainless steel (UNS S31600) per ASTM A240 standards, our impellers feature a superior chemical composition: chromium (Cr) 16.0-18.0%, nickel (Ni) 10.0-14.0%, and molybdenum (Mo) 2.0-3.0%—elements that collectively provide exceptional corrosion resistance in chloride-rich environments. The low carbon content (≤0.08%) minimizes sensitization during welding, while controlled manganese (≤2.00%) and silicon (≤1.00%) enhance formability and strength. This material achieves a tensile strength of 58 ksi (400 MPa) and yield strength of 25 ksi (170 MPa), with 40% minimum elongation to withstand the dynamic stresses of high-speed rotation (up to 3,600 RPM). Certified material test reports (CMTRs) are provided for every production batch, verifying chemical composition and mechanical properties.
Precision machining of blade profiles and leading edges reduces cavitation erosion, a common cause of impeller failure. Tests per IEC 60609-1 standards demonstrate 90% less material loss compared to standard impellers after 1,000 hours of operation in low-NPSH conditions.
Advanced 5-axis machining achieves blade tolerances of ±0.02 mm, optimizing flow dynamics and delivering up to 85% hydraulic efficiency—3-5% higher than sand-cast alternatives. This translates to significant energy savings for pump operators.
The molybdenum-enhanced alloy resists pitting and crevice corrosion in water with chloride concentrations up to 10,000 ppm, making it ideal for coastal applications and brackish water systems. Salt spray testing per ASTM B117 confirms no visible corrosion after 96 hours of exposure to 3% NaCl solution.
Dynamic balancing to ISO 1940 Grade G2.5 ensures smooth operation at maximum RPM, reducing bearing wear and extending pump service life by 20% compared to unbalanced impellers.
We offer comprehensive customization to match specific pump designs and application requirements. Our engineering team uses computational fluid dynamics (CFD) to optimize impeller geometry for clients’ unique flow rate (5-5,000 GPM) and head (10-500 ft) requirements, with prototype delivery in 2-3 weeks. Material options include 316L stainless steel (UNS S31603) for even lower carbon content and improved weldability in cryogenic water applications. Impeller diameters range from 50 mm to 500 mm, with custom hub configurations, keyways, and surface finishes (including electropolishing for enhanced corrosion resistance). Production volumes from 50 pieces to 5,000 pieces are supported, with strict dimensional inspection using coordinate measuring machines (CMM) to ensure compliance with client drawings. Additional services include laser marking for traceability, passivation to maximize corrosion resistance, and performance testing in our on-site pump test facility to verify hydraulic performance before delivery.
