900FH Duplex Diesel Fuel Filter & Water Separator – 1368 L/hr

Description

Heavy-duty 900FH duplex diesel fuel filter and water separator designed for high-flow fuel systems where reliable filtration and serviceability are important. The twin-filter configuration incorporates a manual changeover manifold, allowing one filter side to be isolated for servicing while fuel is directed through the other side.

900FH Duplex Diesel Fuel Filter & Water Separator

This duplex filtration system combines two 900FH-style turbine fuel filter and water separator assemblies with a changeover manifold. Designed for larger diesel engines, generators, agricultural equipment and other high-flow diesel applications, the system provides a maximum rated flow of up to 1368 L/hr.

The duplex arrangement allows one filter side to be isolated for element replacement or maintenance while fuel is directed through the other filter, helping minimise interruption to the fuel supply.

Features & Benefits

• Duplex 900FH diesel filtration system
• Maximum rated flow up to 1368 L/hr
• Manual changeover manifold
• Allows one filter side to be isolated for servicing
• Three-stage water separation and fuel filtration
• Clear reusable collection bowls
• Water drain valves for convenient servicing
• Density-sensitive water indicator flags in collection bowls
• 99% stated water removal efficiency
• Choice of 2, 10 or 30 micron replacement elements
• Maximum allowable pressure of 15 PSI
• Maximum fuel temperature of 88°C
• Mounting plate included
• Includes fittings to suit common 10mm / 3/8" fuel hose

Three-Stage Diesel Filtration

The 900FH turbine-style filter uses a three-stage process to separate water and contaminants from diesel fuel before it reaches the engine fuel system.

Stage 1 – Separation: Incoming fuel is directed through the turbine section, where centrifugal action helps separate larger solids and water droplets. Separated contaminants fall into the collection bowl below.

Stage 2 – Coalescing: Smaller water droplets collect on internal surfaces and the filter element. As the droplets combine and become heavier, they fall into the lower collection bowl.

Stage 3 – Filtration: The replaceable cartridge element provides final particulate filtration while helping separate remaining water from the fuel stream.

2, 10 & 30 Micron Element Options

The duplex assembly uses 900FH-compatible replacement elements and can be configured with different micron ratings according to the requirements of the fuel system:

• SM: 2 micron
• TM: 10 micron
• PM: 30 micron

These are alternative replacement-element options and are not three separate filter elements installed in series. Select the appropriate filtration rating to suit the engine manufacturer's fuel filtration requirements and the intended position of the filter within the fuel system.

Duplex Changeover System

The manual manifold allows fuel flow to be directed through the required filter side. This enables one filter assembly to be isolated for routine servicing or element replacement while the other side remains available for fuel filtration.

This arrangement is particularly useful for equipment where minimising fuel-system downtime is important.

Always follow the correct changeover and servicing procedure to prevent air entering the fuel system or interrupting fuel supply to the engine.

Clear Water Collection Bowls

Each filter incorporates a clear lower collection bowl, allowing accumulated water and contaminants to be visually monitored.

A density-sensitive indicator flag floats on water but sinks in diesel, helping the operator identify when water has accumulated in the bowl and requires draining.

Protecting Diesel Fuel Systems

Water and particulate contamination can contribute to filter blockage, corrosion and premature wear within diesel fuel systems. Modern diesel injection systems can have particularly fine tolerances, making effective primary fuel filtration and regular water removal important.

The duplex 900FH system provides high-capacity primary filtration for applications requiring both water separation and particulate removal.

900FH Duplex Filter Specifications

Filter Cross-Reference

Supplied cross-reference information includes:

• Donaldson P552040
• Racor 900FH

Cross-reference information is provided to assist with identification and replacement selection. Confirm dimensions, micron rating and compatibility with the specific fuel system before installation.

Installation & Maintenance

Install the filter assembly with sufficient access underneath for draining the collection bowls and allow at least 254mm clearance for filter element removal. Periodically inspect the clear bowls for accumulated water and contaminants and drain or replace elements as required.

Filter element selection and replacement intervals should take into account fuel quality, engine requirements, operating conditions and the equipment manufacturer's maintenance recommendations.