Replacement Filter Insert - for Series BRA.11.000 and BRA.11.000 M - DN 150 BRA.11.000 FV

Product detailed description

Flange-mounted filter inserts are commonly used in central heating systems, air conditioning units and water supply lines in commercial and industrial buildings. These filters are installed between flanges in piping systems to remove solid particles from the fluid stream. Installers typically encounter them in systems where fluid purity is critical to the function of downstream components such as pumps, valves or heat exchangers. The design ensures that contaminants are retained within the filter insert, which can then be removed and cleaned or replaced without interrupting the flow in the rest of the system.

Filter inserts are often found in closed-loop systems, especially those operating with glycol mixtures for freeze protection. The operating environment must be considered during installation to ensure that the materials used—such as the EPDM gasket and stainless steel mesh—are compatible with the working medium. The system must also be designed to allow for regular access to the filter for inspection and maintenance.

Technical parameters

Material - body	- telo
Material - body, cover: cast iron GJL 250, mesh: AISI 304, gasket: EPDM	Body and cover: GJL 250 cast iron, mesh: AISI 304 stainless steel, gasket: EPDM
Code	I060009CRI05F1C
Brand	IVAR

The technical parameters determine the suitability of the filter insert for specific applications. The maximum operating temperature of +100 °C and the compatibility with glycol solutions up to 50% are important factors in system design. The material of the body and cover (GJL 250 cast iron) ensures mechanical strength and resistance to thermal expansion. The mesh material (AISI 304 stainless steel) is selected for its corrosion resistance and fine filtration capability. These parameters help in selecting the correct filter insert size and model for the required flow conditions and contaminant load.

Installation and connection

The filter insert is installed between flanges according to EN 1092-1 standards. The nominal diameter (DN 150) must match the flange size of the pipeline. Before installation, verify that the sealing surface of the flange is clean and free from burrs or irregularities that could compromise the EPDM gasket’s integrity. The filter should be oriented so that the flow direction aligns with the manufacturer’s indication (usually marked on the body).

Common installation mistakes include incorrect orientation, improper tightening of the flange bolts, or using incompatible gasket materials. To avoid these, ensure the use of a torque wrench for even tightening and confirm that the flange rating (PN16) matches the system requirements. After installation, perform a visual inspection to confirm that the filter is properly seated and that there are no signs of leakage or misalignment.

Compatibility and accessories

This filter insert is specifically designed for use with the series BRA.11.000 and BRA.11.000 M. It requires a compatible housing with a DN 150 flange connection. When ordering, ensure that the housing and filter insert are from the same product range to guarantee dimensional and functional compatibility. Additional components such as mounting tools or replacement gaskets may be needed depending on the frequency of maintenance.

Technical background for designers

The filter operates by allowing fluid to pass through a fine mesh, which retains suspended particles larger than the mesh aperture. The mesh aperture size varies depending on the model, with a porosity range from 0.8 mm to 1.6 mm. The body and cover are made of GJL 250 cast iron, which provides good mechanical strength and dimensional stability under thermal cycling. The EPDM gasket ensures a tight seal against leakage while remaining flexible enough to accommodate minor flange misalignments.

The system designer must consider the fluid composition and operating conditions when selecting the filter. For example, the use of glycol solutions up to 50% is supported by the EPDM gasket and stainless steel mesh. However, the filter is not suitable for steam, gases or hydrocarbon-based liquids due to the limitations of the materials used. The integration of the filter into the system must also account for the need for regular access to the filter for cleaning or replacement.

Service and operation

During operation, the filter insert should be inspected regularly for signs of clogging or wear. Clogging can be identified by increased differential pressure across the filter or reduced flow rates. In such cases, the filter insert should be removed and either cleaned or replaced. The cleaning process involves disassembling the filter, removing the insert, and washing it with a suitable solvent or water. After cleaning, inspect the mesh for damage or deformation and replace if necessary.

When replacing the insert, ensure that the new unit is compatible with the existing housing and that all components are in good condition. Reinstall the filter insert according to the manufacturer’s instructions, ensuring that the gasket is not damaged during assembly. After reinstallation, check for leaks and verify that the filter functions correctly under normal operating conditions.

Frequently asked questions

Can the filter insert be used in systems with 50% glycol?
Yes, the filter is suitable for water with up to 50% glycol content. The materials used, including the EPDM gasket and AISI 304 stainless steel mesh, are compatible with this mixture.

Is the filter suitable for steam or gas applications?
No, the filter is not recommended for steam, gases or hydrocarbon-based liquids. The materials used are not designed to withstand these operating conditions.

What is the maximum operating temperature?
The filter is rated for a maximum operating temperature of +100 °C. Exceeding this limit may affect the performance of the EPDM gasket and reduce the service life of the filter.

How is the filter inserted into the system?
The filter is installed between two flanges according to EN 1092-1 standards. Ensure the flange surfaces are clean and the filter is aligned correctly before tightening the bolts evenly.