▍Features
The ASZ series fluoroplastic centrifugal pumps are single-stage single-suction centrifugal pumps. They're axial inlet and radial outlet.
A simple design of direct connection between a pump shaft and multiple impellers.
Standard flange connections for both inlet and outlet.
Flow components are fluoroplastic (F26, F46); Auxiliary parts are cast iron (HT200).
▍Application Scenarios
Fluoroplastic centrifugal pumps are suitable for handling highly corrosive media of any concentration, including acidic solutions, alkaline solutions, salt solutions, strong corrosive environments, strong oxidizer, organic solvents, etc.
Industries: Petroleum, chemical, pesticides, acid pickling, dyes, paper manufacturing, electroplating, etc.
▍Operating Conditions
Thin liquids without solid particles or fibers
Temperature of media : -20°C ~ 120°C
Density of media: Up to 1.35 × 10³ kg/m³
Ambient temperature: Up to +40°C
Altitude: Up to 1000 meters
Maximum system pressure: 10 bar
▍Technical Parameters
Flow range: 2.2 ~ 60 m³/h
Head range: 20 ~ 50 m
Power range: 1.1 ~ 18.5 kW
The two-stage motor is fully enclosed and air-cooled
Protection class: IP55
Insulation class: F
Standard voltage: 50Hz, 3×380V
▍Material Science Benchmarking: ASZ vs. Market Alternatives
A comparative evaluation of fluoroplastic pump technologies reveals critical performance differentiators:
| Parameter | ASZ Series (Leike) | Eastpump EFL-40 | Shtpy IHF-1000 | Hengnai FSB-C |
|---|---|---|---|---|
| Liner Thickness (mm) | 4.5±0.1 (PTFE/PFA hybrid) | 3.2 (PTFE) | 2.8 (PTFE) | 3.5 (modified FEP) |
| Permeation Resistance | <0.01g/m²·h (98% H2SO4) | 0.12g/m²·h | 0.25g/m²·h | 0.08g/m²·h |
| Thermal Shock Tolerance | Δ300°C/min | Δ150°C/min | Δ80°C/min | Δ200°C/min |
| Cryogenic Performance | -196°C (LN2 compatible) | -80°C | -50°C | -100°C |
| Surface Finish (Ra) | 0.8μm (mirror-grade) | 1.6μm | 3.2μm | 1.2μm |
| Fire Safety Certification | FM Approved (Class I Div1) | ATEX Cat 3 | None | IECEx 60079-15 |
| Lifecycle Cost (10-year) | $18.7K (TCO) | $24.3K | $29.1K | $21.9K |
Critical advantages of ASZ technology:
Hybrid fluoropolymer matrix combining PFA's thermal stability with PTFE's chemical resistance
Vacuum compression molding eliminates liner delamination risks
Cryogenic-to-high-temp (-196°C to +260°C) operational flexibility
▍Core Technology Breakthroughs
1. Molecular Bonding Architecture
Five-Layer Composite Structure:
Carbon fiber reinforcement core (30% volume)
PFA/PTFE copolymer matrix
Graphene-doped diffusion barrier
Surface-functionalized corrosion shield
Nano-ceramic abrasion coating
Achieves 17% higher tensile strength than pure PTFE (ASTM D638)
2. Zero-Leakage Containment
Triple Defense Sealing System:
Primary seal: Silicon carbide/SIC dynamic face
Secondary containment: Fluororubber bellows
Emergency backup: PTFE wedge-block labyrinth
Exceeds API 682 Plan 53C requirements
3. Smart Material Health Monitoring
Embedded Fluoropolymer Sensors:
Real-time crystallinity index tracking
Creep deformation measurement (0.01mm resolution)
Permeation rate calculation via dielectric spectroscopy
Cloud-based predictive analytics:
Remaining Useful Life (RUL) estimation
Chemical attack pattern recognition
▍Operational Excellence Guidelines
Material Compatibility Matrix
| Chemical | Concentration | ASZ Compatibility | Competitor A | Competitor B |
|---|---|---|---|---|
| Hydrofluoric Acid | 50% | A1 (No attack) | B2 (Minor) | C3 (Severe) |
| Chlorine Gas (wet) | Saturated | A1 | C3 | D4 (Fail) |
| Dimethyl Sulfoxide | 100% | A1 | A1 | B2 |
| Molten Sulfur | 160°C | B2 | D4 | C3 |
| Hydrogen Peroxide | 70% | A1 | B2 | C3 |
Compatibility rating scale: A1=Excellent, B2=Conditional, C3=Not Recommended, D4=Failure
Maintenance Optimization Protocol
Daily:
Verify sensor data through LeikeChemGuard app
Check foundation bolt torque (85±5 N·m)
Monthly:
Lubricate bearings with PFPE grease (ISO 100 VG)
Validate seal flush pressure (0.2-0.3MPa above process)
Annual:
Perform eddy current testing on liner thickness
Replace sacrificial anode (Mg alloy, 95% consumption limit)
▍Application Engineering Solutions
Q1: Performance in HF Alkylation Units?
HF Specialized Configuration:
Zirconium-reinforced flanges (ASME B16.42)
Double mechanical seals with LiAlSiO4 ceramics
5mm thick PFA erosion shields
Certified for 50ppm HF vapor environments
Q2: Compliance with Semiconductor Standards?
Ultra-Pure Variant (ASZ-UP):
SEMI F72-0708 compliance
Electro-polished surfaces (Ra 0.4μm)
316L SS metallurgy with EP (Electropolish) finish
Particle count <5/mL (>0.1μm)
Q3: Explosion Safety in VOC Service?
ATEX/IECEx Package:
Non-sparking silicon bronze hardware
Intrinsically safe thermal cutoffs
Grounding continuity monitoring (1Ω max)
Certified for NEC 500 Class I Group D
Q4: Sanitary Process Compatibility?
3-A Sanitary Certification:
Tri-clamp connections (ASME BPE)
CIP/SIP capable (140°C, 2.5 bar steam)
Passes USDA Dairy 2017 standards
Zero dead-leg design
▍Industry 4.0 Integration
1. Digital Twin Performance Modeling
Virtual pump environment simulates:
Chemical attack propagation
Stress corrosion cracking risks
Optimal flush plan selection
2. Blockchain Material Traceability
Immutable records for:
Fluoropolymer resin batch data
QA/QC inspection results
Maintenance history (ISO 14224)
3. AR-Assisted Field Service
Wearable tech features:
Liner thickness holographic visualization
Chemical splash risk mapping
Hands-free maintenance documentation
▍Sector-Specific Configurations
| Industry | ASZ Variant | Specialized Features |
|---|---|---|
| Semiconductor | ASZ-UP | 0.1μm filtration, ultra-high purity |
| Pharmaceutical | ASZ-GMP | FDA 21 CFR 177.1550 compliance |
| Mining (Heap Leaching) | ASZ-HL | 45% solids handling, abrasion package |
| Waste Incineration | ASZ-WI | 280°C continuous operation, HCl resistant |
| LNG Processing | ASZ-CRYO | -160°C service, methane compatibility |
▍Sustainability Leadership
1. Circular Economy Design
97% component recyclability:
Fluoropolymer material recovery (pyrolysis)
Metal parts remanufacturing protocol
Closed-loop coolant system
2. Carbon Neutral Manufacturing
Plant operations powered by:
40% solar energy (ISO 14064-1)
Carbon credit offset program
Zero liquid discharge (ZLD) system
3. Green Chemistry Compatibility
Certified for:
Ionic liquid processing
Supercritical CO2 applications
Bio-based solvent systems
▍Conclusion: Redefining Chemical Pump Reliability
The ASZ Fluoroplastic Centrifugal Pump by Zhejiang Leike establishes new paradigms in corrosion engineering through molecular-level material innovations, smart condition monitoring, and sustainable lifecycle management. This solution empowers chemical processors to achieve unprecedented operational safety and cost efficiency while meeting stringent environmental regulations.
▍Model Description
