What are the specific values of working pressure and allowable differential pressure for HYDAC filter elements?

1. Rated Working Pressure (Static pipeline pressure, pressure resistance of filter structure)

Disposable glass fiber filter elements (BN/BH/R series)

Suction & low-pressure return lines: 25 bar (2.5 MPa)

Medium pressure: 70 bar (7 MPa)

Standard high-pressure lines: 210 bar (21 MPa)

Reinforced high-pressure type: 315 bar (31.5 MPa)

Cleanable stainless steel mesh / sintered filter elements (W/V series)

Standard type: 210 bar

High-pressure type: 315 bar

Maximum for custom models: 420 bar (42 MPa)

2. Allowable Differential Pressure (Pressure difference across the filter, indicating clogging status)

Initial differential pressure (for brand-new clean filters)

Return line filter elements: ≤ 0.4–0.6 bar

High-pressure filter elements: ≤ 1–2 bar

Recommended differential pressure for replacement (standard for daily maintenance)

Glass fiber return line elements: 2.0–3.5 bar (0.2–0.35 MPa)

High-pressure filter elements: 5.0 bar (0.5 MPa)

General recommended value: 1.5–2.0 bar

Bypass valve cracking differential pressure (ultimate protection)

Return line filters: 3.0–4.0 bar (0.3–0.4 MPa)

High-pressure filters: 6.0 bar (0.6 MPa)

Maximum structural withstand differential pressure (ultimate limit)

Glass fiber elements (BN/R series): 2.5 bar (0.25 MPa)

Stainless steel elements (W/V series):

5.1 bar at 20℃

1.7 bar at 80℃