Stainless Steel 316 Sundyne LMV Series Shaft Sleeve

Product Description

Precision-machined from certified 316 stainless steel, 17-4PH, or duplex stainless steel with the external running surface finish-ground to Ra 0.4 μm or better, this Stainless Steel 316 Sundyne LMV Series Shaft Sleeve protects the pump shaft from corrosion and erosion at the mechanical seal interface in Sundyne high-speed centrifugal pump applications. Each shaft sleeve undergoes comprehensive dimensional verification—including internal bore, external diameter, length, and seal face squareness—against OEM reference specifications, with the running surface receiving liquid penetrant examination to verify freedom from surface defects. With over 600 shaft sleeve sets manufactured and delivered since 2013, our replacement program provides precision components that ensure reliable mechanical seal operation and effective shaft protection in demanding process services. Technical Specifications ParameterSpecification Product TypeShaft Sleeve Compatible Pump SeriesSundyne LMV / LMC Series Material316 SS / 17-4PH / Duplex (Per Application) Surface Finish (Running Surface)Ra 0.4 μm or Better InspectionDimensional Layout, Liquid Penetrant (PT) Quality CertificationEN 10204 Type 3.1, Dimensional Report PackagingVCI Anti-Corrosion Wrap, Protective Tube Case Key Advantages Precision Surface Finish: External running surface finish-ground to Ra 0.4 μm or better and verified by profilometer measurement, providing the surface quality essential for proper mechanical seal performance, O-ring sealing, and extended seal service life. Comprehensive Dimensional Verification: Critical dimensions—internal bore, external diameter, overall length, and seal face squareness—verified against OEM reference specifications to ensure proper fit and seal alignment upon installation. Material Flexibility: Available in 316 SS for general service, 17-4PH for enhanced wear resistance, or duplex stainless steel for chloride-rich environments, with material selection guidance provided by our application engineering team. Defect-Free Assurance: Liquid penetrant examination of the running surface per ASME Section V verifies freedom from surface defects that could compromise mechanical seal performance or lead to premature shaft corrosion. Frequently Asked Questions Q: How does the surface finish of this shaft sleeve affect seal performance? A: The running surface is finish-ground to Ra 0.4 μm or better—the surface quality essential for proper mechanical seal face contact and O-ring sealing. This precision finish, verified by profilometer measurement and confirmed defect-free by liquid penetrant examination, directly contributes to extended mechanical seal service life. Q: Which material should I select for my application? A: 316 SS is suitable for general chemical and hydrocarbon services. 17-4PH offers enhanced wear resistance for applications with potential abrasive particles. Duplex stainless steel is recommended for chloride-rich environments such as seawater or high-chloride produced water. Our application engineers can assist with material selection based on your specific process fluid composition.