Brass Spring Check Valve imapangidwa ndi mkuwa wonyengedwa, womwe umatchedwanso kuti valavu yosabwerera, yopangidwa kuti izitha kuyendetsa kayendedwe ka madzimadzi, madzimadzi amayendetsedwa ndi disc ndikuyenda mbali imodzi, yomwe imagwiritsidwa ntchito kwambiri popanga mapaipi, kupopera, ndi mapaipi.