Zawór zwrotny z gwintem wewnętrznym x gwintem wewnętrznym 3 / 4 cal DN 20, mosiądz

Check valve, female thread x female thread, 3/4", DN 20, brass, designed to prevent reverse flow of heat transfer fluid in heating and water supply systems. Brass body ensures durability and corrosion resistance. The valve with internal threads on both sides is easy to install in the pipeline. Used in boiler plants and burner systems to maintain correct circulation direction.