Gruppo valvola di ritegno/raccordo De Dietrich 722310500

The check valve/nipple assembly combines a check valve and a nipple in one unit, allowing flow in one direction while preventing backflow. It is used in boiler and burner systems to protect pumps and other components from reverse flow. This assembly simplifies installation and reduces potential leak points. It is a common part in heating system maintenance and repair, ensuring proper fluid circulation and system protection.