Basket Strainer

I. Product Features: Perfect Combination of Precision Structure and Reliable Performance

(A) Structural Design

1. Quick-Opening Basket
   • Patented cam locking device (Patent No.: ZL2023XXXXXX) with ≤50N·m opening torque, saving 70% operation time vs. traditional bolted design (DN300 model);
   • 45° sloped basket bottom promotes particle settling, reducing risk of secondary contamination.
2. Filter System
   • 316L stainless steel wedge wire screen (slot accuracy ±0.02mm), filtration precision 10-500μm, customizable sintered mesh (5μm for ultra-fine filtration);
   • Reinforced screen support structure (rib spacing ≤50mm) increases pressure resistance by 30%, preventing deformation.

(B) Material Selection

II. Manufacturing Process: Dual Assurance of Craftsmanship and Intelligent Inspection

(A) Key Manufacturing Processes

1. Body Forging
   • 8000-ton friction press forges body blanks (forging ratio ≥4:1), ASTM grain size 9+;
   • Ultrasonic testing (UT) detects internal defects with Φ1.2mm flat-bottom hole sensitivity.
2. Precision Machining
   • 5-axis CNC mills flange sealing surfaces (flatness ≤0.03mm), surface roughness Ra≤1.6μm;
   • CNC rolling machine forms basket cylinders (diameter tolerance ±0.2mm), automated welding (15cm/min speed) ensures leak-tightness.
3. Surface Treatment
   • Food-grade products electrolytically polished (Ra≤0.4μm) for FDA 21 CFR 177.2600 compliance;
   • Marine applications coated with FBE (≥300μm thickness), passing 1000-hour salt spray test.

(B) Full-Scale Performance Testing

• Hydrostatic Test: 1.5x rated pressure (water, 30min), ≤0.5% pressure drop (e.g., 9.0MPa for Class 600);
• Gas Seal Test: 0.6MPa compressed air with bubble detection;
• Flow Test: ≤0.04MPa pressure drop at rated flow (e.g., 120m³/h for DN200).

III. Applications: Multi-Industry Fluid Filtration Solutions

(A) Petrochemical Industry

• Crude Oil Pretreatment: DN600 strainer (80μm) in atmospheric/vacuum units protects pump impellers from weld slag and sediment, extending maintenance intervals from 2 months to 1 year;
• Polyester Production: Hastelloy C276 strainer (25μm) in PTA units filters acetic acid-containing media, operating 5+ years without corrosion.

(B) Power Industry

• Cooling Water Systems: DN800 strainer (150μm) with electric quick-opening for 5-minute debris removal in power plants;
• Feedwater Pumps: 316L strainer (40μm) protects high-pressure pumps with ≤0.03MPa pressure drop.

(C) Food & Beverage Industry

• Beer Brewing: Hygienic strainer (30μm) with 316L mirror finish and quick-clamp connections for wort filtration, EHEDG certified, ≤0.01mg/cm² CIP residue;
• Dairy Processing: 10μm strainer in UHT systems prevents heat exchanger fouling, improving efficiency by 15%.

(D) Paper Industry

• White Water Recovery: DN500 strainer (100μm) with stepped screen design reduces fiber loss to 0.5% in wastewater treatment;
• Chemical Addition: 5μm strainer ensures uniform coating in paper production, reducing defects by 30%.