Stopcocks isolate a section of the air system by hand. The version with an exhaust port also vents the isolated side, so the line downstream is not left pressurised after the cock is closed.

This category lists 3 Büyükdemir references cross-referenced against 11 original equipment numbers.

Most looked-up references in this group: Stopcock / Absperrhahn (DIN 74293) 7-0001, Four-way Cock / 4/2 Wegehahn 7-1005, Stopcock — 180° turnable with exhausting 7-0002.

Manufactured by Büyükdemir Otomotiv in Istanbul, a producer of truck and trailer air system parts since 1957.