AGFA-GEVAERT TN8573 - FN0831

Antiguo aparato de valvulas, no se que función tiene, dispone placa metálica con las idicaciones: AGFA GEVAERT, Made in Germany, TN8573 y FN0831.

Old valve device, I don't know what function it has, it has a metal plate with the indications: AGFA GEVAERT, Made in Germany, TN8573 and FN0831.