Custom Design Steam Turbine Seal Bush with Stellite Alloy Hardfacing and High Precision Machining
Product Details
Steam turbine seal bush (oil seal bush) is a critical sliding sealing component installed at turbine shaft ends. It forms an oil film sealing structure with the rotating shaft to prevent outward leakage of lubricating oil and avoid steam intrusion into the oil system, protecting the safety of bearing and lubrication system.
We provide fully customized manufacturing services of turbine seal bushes applicable to large thermal power turbines, small & medium industrial turbines, waste heat turbines and generator sets. We produce split-type seal bushes and integral seal bushes. Optional Stellite alloy hardfacing can be implemented on the sealing working surface to improve wear resistance and anti-erosion performance. Our products support new unit assembly and overhaul spare part replacement.
- Split two-half seal bush (Mainstream type for steam turbines, convenient for installation and maintenance)
- Integral circular seal bush
- Oil baffle integrated seal bush
- Optimized retrofitted seal bush for oil leakage treatment
Cast tin bronze, aluminum bronze, 42CrMo, 25Cr2MoV, stainless steel and other alloy materials. Material selection matches unit operating temperature, shaft linear speed and lubrication medium requirements.
- Drawing audit & technical parameter confirmation
- Blank casting / forging
- Heat treatment to stabilize material performance
- Rough machining
- Stress relief treatment
- Precision CNC finishing (inner bore, sealing surface, split surface, bolt holes, oil grooves)
- Optional: Stellite alloy hardfacing on sealing surface
- Bore roundness, cylindricity and flatness inspection
- Non-destructive testing (PT/MT as requested)
- Deburring, cleaning and anti-rust packaging
Strictly control inner hole cylindricity, split surface fitting clearance and oil groove dimensional accuracy. Ensure stable oil film formation during operation, effectively eliminate oil leakage risk.
Reasonable material matching. For units with harsh operating conditions, Stellite hardfacing can be adopted to enhance high-temperature friction resistance, resist shaft abrasion and extend service cycle.
Custom design and processing according to customer drawings: different inner/outer diameter, split structure, oil groove layout, mounting flange form. We also provide targeted optimization schemes for on-site oil leakage faults of old units.
Complete raw material test reports, heat treatment documents, dimensional inspection records and NDT certificates can be provided. Comply with power industry equipment manufacturing standards.
Suitable for high & low pressure shaft ends of large turbines, as well as small waste heat turbines, back-pressure turbines and generator bearing sealing systems.
- Thermal power main steam turbines
- Cogeneration industrial steam turbines
- Waste heat recovery turbines
- Small & medium condensing / back-pressure turbines
- Steam turbine generator sets
| Required Information | Details |
|---|---|
| Component Information | Component drawings or key dimension parameters |
| Operating Parameters | Shaft diameter, operating rotating speed, oil temperature |
| Structure Type | Split type or integral type |
| Material Specifications | Required material grade |
| Surface Treatment | Whether Stellite hardfacing is needed on sealing surface |
| Testing Requirements | NDT testing requirements |
| Order Details | Quantity and delivery time |
Mr. Tom Hu
General Manager
- Email: tom.hu@huanxiang-industrial.com
- Tel: +86-13618387300
- WhatsApp: 8613618387300
-
WeChat:
+86-13271888325
- Skype: hsh548
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