HYDAC Return Filter

Advanced Technology Overview: The HYDAC Return Filter is a specialized filtration system designed to purify hydraulic circuit oils as they return to the reservoir. Part of the leading German HYDAC range, this filter represents the pinnacle of technology in the field of hydraulic system protection and precise oil quality control. RF BN/HC 330 D 10 A 1.0 │ │ │ │ │ │ └── Version (1.0: without bypass valve) │ │ │ │ │ └──── Connection type (A: pipe socket) │ │ │ │ └──────～ Filtration grade (10: 10 microns) │ │ │ └────────～ Filter element size (330 mm) │ │ └───────── ─ Connection type (D: Two-port version) │ └──────────── Pressure series (HC: High pressure) └──────────────── Filter type (RF: Return line filter) Common classifications: RF BN: Return line filter with flange mounting RFCO: Compact return line filter RFO: Return line filter with check valve RFBO: Return line filter with separate bracket Structure and Engineering Design: 1. Main Body (Filter Housing): Materials and Manufacturing: Material: ST 52-3N steel or 304/316 stainless steel Manufacturing: TIG welding with X-ray testing Treatment: Epoxy powder coating (RAL 5010) Sanding: Internal and external homogeneous Hydraulic Design: Internal design: ┌─────────────────────────────────┐ │ Oil inlet → Vortex chamber → Primary separation │ │ ↓ │ │ Filtration element ← Uniform pressure ← │ │ ↓ │ │ Oil outlet ← Clean chamber ← │ └─────────────────────────────────┘ 2. Filter Element: HYDAC Filtration Technologies: a. Depth Filtration: Material: Treated glass fibers Construction: Multi-layer with graduated density Features: High capacity, uniform load distribution Efficiency: β₁₀ ≥ 200 b. Surface Filtration: Material: Fine polyester mesh Construction: Parallel layers Features: High precision, clogging resistance Efficiency: β₁₀ ≥ 1000 c. Hybrid Filtration: Combination: Deep + surface filtration Advantages: Combines the advantages of both types Applications: High-precision systems 3. Sealing System: Static Seals: Main ring: