Strainer

I. Product Features: Versatile Design Meets Precision Filtration

(A) Structural Design & Filtration Performance

1. Multi-Configuration Options
   • Y-Type: 30° diversify angle (±2° tolerance) reduces pressure drop by 15% (Cv≥120 for DN100), ideal for pump inlet protection in right-angle pipelines;
   • Basket Strainers: Quick-opening covers (30% fewer bolts) with O-ring seals (≤0.01cc/min leakage) enable 15-minute screen replacement for DN300, supporting online maintenance;
   • Self-Cleaning Models: Rotating scrapers (5rpm) remove debris when ΔP≥0.1MPa, suitable for high-concentration slurries (≤20% solids).
2. Graded Filtration System
   • Mesh Accuracy Matrix:

     Grade	Mesh	Aperture (μm)	Applications
     Coarse	20–40	850–425	Cooling water, crude oil
     Medium	60–100	250–150	Hydraulic oil, syrups
     Fine	150–325	100–45	Ultra-pure water, APIs

   • Anti-Clogging: Diamond-shaped mesh holes (1.5:1 aspect ratio) reduce fiber entanglement by 70%, cutting cleaning frequency from 3x/day to 1x/week in paper mill white liquor systems.

(B) Material & Application Compatibility

• Body Materials: Forged steel (A105/F316), duplex (2205), Hastelloy (C-276), rated for Class 150–2500 (PN16–420), -196℃–650℃;
• Surface Treatments: PTFE coating (100μm) for marine use (2000-hour salt spray); aluminum anti-oxidation coating for high-temp (700℃ resistance).

II. Manufacturing Processes: Intelligent Forging & Quality Assurance

(A) Key Manufacturing Steps

1. Precision Forging & Forming
   • Die Forging: 2000-ton presses refine grains to ASTM No.10+ (forging ratio ≥4:1), UT tested for ≥Φ1.2mm defects;
   • Laser Cutting: 2000W fiber lasers cut 316L mesh (±0.05mm accuracy), Ra≤1.6μm edge finish.
2. Precision Machining & Assembly
   • 5-Axis CNC: Achieves ≤0.003mm flatness for flanges, ±0.01mm coaxiality for screen supports;
   • Robotic Assembly: Vision-guided robots (±0.1mm positioning) install seals for consistent quality.
3. Surface Treatment & Testing
   • Electro Polishing: FDA-compliant inner surfaces (Ra≤0.4μm) for food-grade applications;
   • CMM Inspection: Hexagon coordinate measuring machines (±0.002mm accuracy) verify critical dimensions.

(B) Full-Dimension Testing

• Hydrostatic Test: 1.5x pressure (water, 45 min), ≤0.5% drop (e.g., 13.5MPa for Class 900);
• Gas Seal Test: 1.1x pressure (helium), ≤5×10⁻¹⁰Pa·m³/s leakage (better than API 598 Class IV);
• Pressure Drop Test: ≤0.03MPa at rated flow (e.g., 150m³/h for DN200), 20% better than industry standards.

III. Product Applications: Critical Filtration Across Industries

(A) Oil & Gas

• Shale Gas: Sulfur-resistant strainers (NACE MR0175) with duplex 2507 mesh last 8 years in 1200ppm H₂S, 3x longer than standard SS;
• Subsea Pipelines: DNV GL-certified basket strainers (1000m depth, 20MPa) reduce blockages by 90% via self-cleaning.

(B) Chemical & Petrochemical

• Polymer Reactors: 50μm basket strainers handle 25% solids-laden PE slurry, enabling 10-minute screen change to minimize downtime;
• Chlor-Alkali: Hastelloy C-276 strainers resist 180,000ppm Cl⁻ for 10 years, extending maintenance cycles from 6 months to 2 years.

(C) Power & Energy

• Supercritical Power: High-temp Y-type strainers (F91 body) with Inconel 718 mesh pass 100,000 load cycles, ΔP fluctuation ≤5%;
• PV Silicon: Electropolished 316L T-type strainers control 99.99% pure trichlorosilane with ≤1×10⁻⁹Pa·m³/s leakage.

(D) Municipal & Environmental

• Wastewater: DN1200 basket strainers with tungsten carbide coating last 7 years in 15% solids-laden sewage, cutting replacement costs by 40%;
• District Heating: Self-cleaning strainers (100μm) reduce pressure loss by 30%, improving network efficiency by 5%.

IV. Advantages: TIANYU’s Global Competitiveness

1. Full Product Portfolio
   • 4 Series Coverage: Y-type (DN15-DN600), basket (DN50-DN1200), T-type (DN25-DN300), temporary (DN80-DN600) for 95% of industrial needs;
   • Custom Solutions: Special structures (e.g., right-angle, high-low basket), non-standard flanges (JIS/GOST), and ATEX-certified explosion-proof models.
2. Low Maintenance & Longevity
   • Quick-Opening Design: Patent cam locks (≤50N·m torque) reduce basket strainer opening time by 2/3 vs. bolted alternatives;
   • Anti-Fatigue Design: Flexible screen supports (±10° deflection) increase vibration resistance by 50% (50,000 cycles tested).
3. Global Certifications & Support
   • Compliance: 20+ certifications including API 6D, CE-PED, GOST-R for global markets;
   • Service Network: 8 regional centers with 24/7 support, 48-hour emergency parts delivery, cutting downtime by 75%.
4. Sustainability & Cost Efficiency
   • Energy Saving: CFD-optimized flow paths reduce pressure loss by 15–20%, saving ~15,000kWh/year for DN300 strainers;
   • Eco-Friendly: 98% recyclable components, 40% lower forging energy, 120kg CO₂e reduction per DN800 strainer (EU CE PED compliant).