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FPL UFI delivery air filter

The FPL UFI delivery air filter is a high-pressure plate-mounted filter designed for side mounting on hydraulic manifolds. With a cast iron head and a steel bowl, it supports a maximum operating pressure of 31.5 MPa (315 bar) and flow rates up to 400 l/min. It offers a wide range of FormulaUFI filter media and an integrated bypass valve set at 6 bar. Ideal for heavy-duty applications with operating temperatures from -25°C to +110°C.

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FPL UFI

Description

High-Pressure Plate Filters FPL UFI Series: Power and Integration

The FPL series by UFI Filters offers advanced solutions for high-pressure delivery filtration with side flange mounting (“manifold side mounting”). These filters are designed to be installed directly on integrated blocks or power units, eliminating the need for piping and fittings, reducing overall dimensions and minimizing pressure drops.

Construction Features and Materials

The robust construction of FPL filters ensures reliability even under the most extreme conditions:

  • Head: Made of cast iron, ensuring dimensional stability and resistance to high pressures.
  • Bowl: Made of extruded steel to withstand operating pressures up to 31.5 MPa (315 bar).
  • Bypass Valve: Integrated and made of steel, set at 600 kPa (6 bar) ±10%.
  • Seals: Standard NBR Nitrile, with optional FKM Fluoroelastomer on request.
  • Indicator Port: Made of brass, for secure connection of monitoring instruments.

FormulaUFI Filter Elements

The series uses filter elements from the EPB family, available in different configurations to optimize fluid cleanliness:

  • Standard Series: Collapse pressure 2 MPa (20 bar), with FormulaUFI.MICRON media (FA, FB, FC, FS, FD, FE) or FormulaUFI.CELL (CC).
  • H+ Series: High collapse pressure of 21 MPa (210 bar), for applications without bypass or with high pressure peaks, using FormulaUFI.MICRON media (HA, HB, HC, HD).

Technical Specifications and Performance

The FPL UFI delivery air filters deliver top-level performance for complex hydraulic systems:

  • Maximum Operating Pressure: 31.5 MPa (315 bar).
  • Maximum Flow Rate (Qmax): Up to 400 l/min.
  • Operating Temperature: From -25°C to +110°C.
  • Fluid Compatibility: Suitable for HH, HL, HM, HV and HTG fluids according to ISO 6743/4.

Installation and Maintenance

Side plate mounting simplifies integration into the circuit. Maintenance is facilitated by the ability to remove the bowl to replace the filter element. It is essential to follow the specified tightening torques to ensure proper sealing: 70 Nm +5/0 for the bowl and 40 Nm +5/0 for the indicator.

Summary technical table of the main characteristics of the FPL UFI delivery air filter

Feature Value
Type Plate-mounted delivery filter (manifold)
Max Operating Pressure 31.5 MPa (315 bar)
Maximum Flow Rate (Qmax) 400 l/min
Collapse Pressure (Std Series) 2 MPa (20 bar)
Collapse Pressure (H+ Series) 21 MPa (210 bar)
Bypass Valve Setting 600 kPa (6 bar) ±10%
Head Material Cast iron
Bowl Material Steel
Filter Media Microfiber (5–30 µm), Cellulose (10 µm)
Operating Temperature From -25°C to +110°C
Connections (Manifold) Size 15, Size 20, Size 32 (90° flange)

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UFI FILTERS

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