Chemical Equipment Cavity Sleeve

KMS Chemical Equipment Cavity Sleeve

Technical Specification Sheet

I. Key Specifications

• Base Material:
  Nickel-based alloy
  (Fully compatible with KMS special-alloy metal spinning technology; stable formable thickness range 0.5–20 mm.
  At 4.0 mm wall thickness, tensile strength ≥ 800 MPa.
  Corrosion resistance compliant with NACE MR0175, suitable for aggressive chemical media environments.)
  
• Dimensions:
  Ø130 × H140 mm
  Wall thickness uniformity deviation ≤ 0.08 mm
  Roundness deviation ≤ 0.05 mm/m
  Ensures precise interference fit with chemical equipment cavities, eliminating media leakage gaps.
  
• Dimensional Tolerance:
  ±0.1 mm
  (Chemical-equipment precision grade, achieved through temperature-controlled processing on CNC250 metal spinning lathes to prevent thermal deformation of nickel-based alloys.)
  
• Surface Condition:
  Uncoated
  (Retains the intrinsic corrosion resistance of the nickel-based alloy substrate.
  Surface roughness Ra ≤ 1.6 μm, reducing media adhesion and residue accumulation, facilitating cleaning and maintenance.)
  

II. Manufacturing Process

• Blank Preparation:
  3000 W laser cutting system
  (Processing range covers nickel-based alloy plates up to 10.0 mm thickness)
  Cutting accuracy ±0.05 mm, enabling burr-free cutting and eliminating edge stress concentration, establishing a high-precision foundation for subsequent spinning operations.
  
• Core Forming Process:
  CNC metal spinning on CNC250 lathes
  (16-machine configuration, optimized for small-diameter precision components up to Ø250 mm)
  Utilizing a constant-temperature spinning + multi-pass progressive forming process:
  
  • Forming temperature maintained at 200–250 °C, aligned with the plastic deformation range of nickel-based alloys
    
  • Feed increment precisely controlled at 0.08 mm per pass
    
  • Seamless, one-piece forming of Ø130 × H140 geometry (weld-free construction)
    
  • Inner surface roughness Ra ≤ 1.6 μm, eliminating crevices that could trap corrosive media
    
• Post-Processing Enhancement:
  Standardized pickling and passivation process
  Removes oxide scale generated during forming and activates the passive film of the nickel-based alloy, significantly improving resistance to acid and alkali corrosion.
  Ensures stable performance in chemical media with pH values ranging from 1 to 14.
  

III. Quality Control & Inspection

• Quality System Certification:
  Full-process compliance with ISO 9001:2015 Quality Management System
  Conforms to ASME BPE and ISO 15848-1 leakage control standards for chemical equipment, supporting third-party inspection and certification.
  
• Inspection Equipment:
  
  • DCC Coordinate Measuring Machine (accuracy ±0.001 mm; 100% full-dimension inspection coverage)
    
  • Ultrasonic thickness gauge for real-time monitoring of 4.0 mm wall thickness uniformity (deviation ≤ 0.08 mm)
    
  • Metallographic microscope for microstructure analysis of nickel-based alloys, preventing intergranular corrosion induced by improper forming
    
• Inspection Standards:
  
  • Raw material spectrometric analysis to verify nickel, chromium, molybdenum, and other alloying elements
    
  • Airtightness testing of finished parts at 1.6 MPa (zero leakage)
    
  • Corrosion resistance sampling inspection:
    3 samples per batch immersed in 5% sulfuric acid solution for 48 hours, with corrosion rate ≤ 0.01 mm/year
    Overall defect rate controlled below 0.05%.
    

IV. Production Capacity & Delivery

• Capacity Assurance:
  Dedicated production line equipped with 16 CNC250 metal spinning lathes
  
  • Output per machine ≥ 50 units/day
    
  • Stable monthly capacity ≥ 2,000 units, supporting batch assembly of chemical equipment
    
  • For capacity expansion, CNC600 spinning lathes (up to Ø600 mm capability) can be deployed, increasing maximum monthly capacity to 3,000 units
    
• Delivery Model:
  
  • JIT (Just-In-Time) delivery supported
    
  • Standard order lead time ≤ 10 days
    
  • VMI (Vendor Managed Inventory) services available, dynamically aligned with customer production schedules to reduce capital occupancy and warehousing costs
    
• Customization Response:
  For special requirements (e.g., dimensional modification or upgraded internal surface precision):
  
  • Manufacturing solution provided within 24 hours
    
  • Sample lead time ≤ 5 days
    

V. Application Scenarios

• Primary Applications:
  Chemical equipment cavity protection
  
  • Suitable for reactors, distillation columns, and media storage vessels
    
  • 4.0 mm nickel-based alloy wall thickness withstands strong acids (sulfuric acid, hydrochloric acid), strong alkalis (sodium hydroxide), and organic solvents (ethanol, acetone)
    
  • Structural stability maintained across –20 °C to +300 °C operating conditions
    
  • Prevents equipment damage caused by media permeation and corrosion
    
• Extended Applications:
  
  • Pharmaceutical chemical reaction chambers
    Compliant with GMP cleanliness standards; Ra ≤ 1.6 μm internal surface finish enables easy cleaning and eliminates dead zones, preventing cross-contamination
    
  • Petrochemical transport cavities
    Suitable for sulfur-containing crude oil and natural gas systems; meets sulfide corrosion resistance requirements for safe transport
    
  • Environmental water treatment equipment
    Used in high-concentration wastewater reactors; resistant to salt spray and oxidizing agents, significantly extending equipment service life
    

VI. After-Sales Service

• Quality Commitment:
  2-year warranty provided.
  Non-human-induced issues such as corrosion perforation, dimensional deformation, or internal surface wear during the warranty period are eligible for free replacement, with round-trip logistics fully covered.
  
• Technical Support:
  Installation and fitment guidance manual supplied with each shipment
  (including cavity interference tolerances and installation fastening torque specifications).
  Engineering support response within 24 hours, with on-site assistance available for complex operating conditions.
  
• Post-Delivery Follow-Up:
  Semi-annual customer follow-ups to collect data on media type, temperature, and pressure, enabling proactive maintenance recommendations.
  Long-term partners receive one free corrosion resistance inspection per year to identify potential risks in advance.
  
• Emergency Response:
  For urgent equipment repair or replacement needs, a priority production channel is activated, enabling emergency order fulfillment within as fast as 48 hours, minimizing customer downtime losses.
  

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