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FPD UFI delivery air filter

The FPD UFI delivery air filter is a modular in-line solution designed for very high-pressure hydraulic applications. Featuring a robust cast iron head and a steel bowl, it supports a maximum operating pressure of 31.5 MPa (315 bar) and handles flow rates up to 400 l/min. Equipped with a CETOP interface and compatible with ISO 6743/4 fluids, it delivers superior filtration thanks to FormulaUFI elements, ensuring reliable operation in a temperature range from -25°C to +110°C.

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FPD UFI

Description

High-Pressure Modular In-Line Filters FPD UFI Series: Robustness and Integration

The FPD series by UFI Filters represents the pinnacle of delivery filtration for modular configurations (“Modular inline filter”). Designed for hydraulic systems requiring high strength and flexible installation, these filters stand out for their ability to operate at extreme pressures while maintaining compact dimensions and high efficiency.

Construction Features and Materials

The structure of FPD filters is engineered for maximum durability in harsh environments:

  • Head: Made of cast iron, ensuring stability and resistance to deformation under high pressure.
  • Bowl: Made of 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% to ensure system protection.
  • Seals: Standard NBR Nitrile, with optional FKM Fluoroelastomer on request.
  • Indicator Port: Made of brass, for mounting monitoring devices.

FormulaUFI Filter Elements

The series uses filter elements from the EPD family, designed to withstand very high differential collapse pressures of 21 MPa (210 bar). Several filter media types are available:

  • FormulaUFI.MICRON (FA, FB, FC, FS, FD, FE): Inorganic glass microfiber with filtration ratings from 5 to 30 µm (ß > 1,000).
  • FormulaUFI.WEB (MC, MD, ME, MF): Metal mesh with filtration ratings from 10 to 90 µm.

Performance and Technical Specifications

The FPD UFI delivery air filter offers high-level technical specifications:

  • 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.

Connections and Configuration

A key feature of the FPD series is the CETOP connection interface (Port type C) and port configuration (e.g. Size 03 CETOP 3/size 6), allowing direct and modular integration into hydraulic manifolds and power units, optimizing space and reducing piping.

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

Feature Value
Type High-pressure modular in-line filter
Max Operating Pressure 31.5 MPa (315 bar)
Maximum Flow Rate (Qmax) 400 l/min
Element Collapse Pressure 21 MPa (210 bar)
Bypass Valve Setting 600 kPa (6 bar) ±10%
Head Material Cast iron
Bowl Material Steel
Filter Media FormulaUFI.MICRON (5–30 µm), FormulaUFI.WEB (10–90 µm)
Operating Temperature From -25°C to +110°C
Connection Type CETOP interface

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UFI FILTERS

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