The Danfoss ASV-I DN 25 partner valve is a multifunctional shut-off, balancing, measuring and impulse valve designed for installation in the flow pipework of heating systems. The valve combines the functions of flow presetting and shut-off in a single unit, thereby simplifying the hydraulic balancing of the system. Integrated measuring test points allow easy verification of the flow rate directly at the installation site.

The ASV-I is designed as a partner valve for use with Danfoss ASV-PV or ASV-P differential pressure controllers. When the ASV-I is combined with the ASV-PV, differential pressure control is ensured together with limitation of the maximum flow rate in the given heating circuit branch – without the need for any further operator intervention when system load changes.