Magnetic filter swivel DIRTSTOP - 3/4 "M x 3/4 "F; 1,46m3/h; grey - action – SALE IVAR.DIRTSTOP

Product detailed description

Magnetic filters are essential components in closed-loop heating systems where pipe corrosion and mechanical wear generate fine particulate matter. This includes residential and commercial buildings with underfloor heating, radiators, or heat pumps. During installation, technicians must ensure that all suspended particles—both magnetic and non-magnetic—are removed to prevent blockages in valves, heat exchangers and circulator pumps. The IVAR DIRTSTOP provides a dual filtration method to address these challenges in a compact design suitable for tight spaces.

The filter is typically installed in the return line of the system, downstream of the boiler or heat generator, to capture contaminants before they re-enter the main circuit. Its rotating filter insert allows for easy alignment during installation, ensuring optimal performance regardless of pipe orientation. The device is suitable for systems with nominal pressures up to PN 3 and operating temperatures between 0°C and 90°C.

Technical parameters

Material	IXEF technopolymer
Nominal pressure	PN 3
Code	520049
Brand	IVAR

The nominal pressure rating of PN 3 indicates the filter is suitable for low-pressure systems such as standard heating circuits. The operating temperature range of 0°C to 90°C covers most domestic and light commercial applications. These parameters are important for correct sizing and system compatibility, especially when selecting matching valves and piping.

Installation and connection

To install the IVAR DIRTSTOP, ensure the system is depressurised and the flow direction matches the arrow marked on the body. Connect the filter using the 3/4 inch internal to external thread (FM) configuration. Use a wrench to tighten the fittings securely but avoid over-torquing to prevent damage to the polymer housing. After installation, verify the filter is positioned in one of its four operational angles for maximum efficiency. A common mistake is incorrect orientation, which can reduce the filtration surface area and lower performance.

Compatibility and accessories

The filter is compatible with standard heating system components such as ball valves, pressure gauges and expansion vessels. When installing, ensure that the system includes a bypass valve for maintenance access and a pressure differential gauge to monitor filter performance over time. No additional accessories are required for basic operation, but a cleaning tool may be useful for removing trapped debris without disassembling the unit.

Technical background for designers

The IVAR DIRTSTOP combines a mechanical mesh filter with a high-strength magnetic field to capture both metallic and non-metallic particles. The filter insert rotates freely to maintain consistent flow characteristics regardless of installation angle. Constructed from IXEF® technopolymer and CW617N brass components, the device resists thermal cycling and chemical exposure typical in heating systems. The EPDM sealing ensures compatibility with glycol-based antifreeze solutions. Long-term efficiency depends on regular cleaning and proper flow rates within the system design limits.

Service and operation

Periodic inspection and cleaning are necessary to maintain performance. To clean, rotate the filter insert to a convenient position and remove the trapped debris manually or with a soft brush. Check the integrity of the EPDM seal and replace if damaged. There are no defined service intervals in the provided documentation, but maintenance should be scheduled based on observed debris accumulation and system performance.

Frequently asked questions

Can the IVAR DIRTSTOP be used in systems with glycol mixtures?
Yes, the EPDM sealing material is compatible with glycol-based antifreeze solutions, making it suitable for systems with low-temperature operation.

Is the filter insert removable for cleaning?
The rotating filter insert can be cleaned in situ without removal. Manual brushing or wiping is sufficient to clear accumulated debris.

Can the filter be installed vertically or horizontally?
The rotating design allows for installation in any of four positions, including vertical or horizontal orientations, without affecting performance.

Does the filter require a bypass for maintenance?
While not mandatory, a bypass valve is recommended to isolate the filter during cleaning and to maintain system operation without interruption.