Privacy settings on bolasystems.com
Necessary cookies: Necessary for the proper functioning of the website. These cannot be deactivated.
Analytical cookies: They help us understand how you use our website, allowing us to improve it. This includes Google Analytics.
Marketing cookies: They are used to track visitors across websites to display relevant advertisements. This includes Google Ads and Google Enhanced Conversions technology.
The Danfoss FVR DN20 threaded filter (065B8236) protects valves, pumps and meters in heating systems and DHW systems against impurities from the water in the pipework. More information
Out of stock - can be requested
| Connection size | 3/4" |
| Connection Type | Internal thread |
| Flow | 7.9 m3/h |
| Nominal diameter | DN 20 |
| Pressure | 25 bar |
| Temperature | -10...130 °C |
| Weight | 0.30 kg |
The Danfoss FVR DN20 threaded strainer is designed to protect valves and sensitive components in heating systems and domestic hot water systems. The strainer captures impurities contained in the pipework water – welding beads, swarf, sand and other solid particles. It must always be installed in the direction of flow of the medium upstream of the protected components, such as meters, pumps or control valves.
The strainer must be installed so that the direction of flow corresponds to the arrow on the valve body. Horizontal installation with the strainer insert facing downwards is recommended. Vertical installation is also permissible – when the medium flows upwards, the strainer captures all impurities, but they cannot settle and accumulate. During installation, sufficient space must be provided for removing the mesh for cleaning or replacement.
We respond to your product queries as quickly as possible, usually within 24 hours.
Shopping with us
About us
Personal collection of goods
Opening hours

Contact
Delivery options
Payment options
Copyright © 2026 BOLA spol s.r.o.
Bola.cz
Nenašli jste to, co jste chtěli vědět?