具有形成用于在通风管道的体积流量调节器安装（28），其具有用于调整所述节流元件的管状外壳（38），一个可移动地设置在所述壳体中的节流元件（44）和外部设置在所述壳体调节装置（50）的体积流量调节器组件， 其包括特征在于接线盒（18），具有暴露在安装状态下进入开口（20），以及接收在接收部分（26）可滑动地体积流量调节器（28）的适配器套筒（22）和一个轴向相邻的终端部分（30） 其可连接到接线盒，其中，所述端子部分（30）和所述套筒（32）的内径的内径，并在横向方向上进入开口，以将连接件（32）的轴线的宽度比外径大的连接件（30） 流量调节器的外壳（38）。

Volume flow regulator assembly with a formed for installation in a ventilation duct volume flow regulator (28) having a tubular housing (38), a movably arranged in the housing throttle element (44) and an externally disposed on the housing adjusting means (50) for adjusting the throttle element, characterized by a connection box (18) of an access opening in the installed state exposed (20), and an adapter sleeve (22) in a receiving portion (26) of the volume flow regulator (28) slidably receives and an axially subsequent terminal portion (30) comprises which is connectable to a connection piece (30) of the terminal box, wherein the inner diameter of the connecting portion (30) and the inner diameter of the connecting piece (32) and the width of the access opening in the direction transverse to the axis of the stub (32) larger than the outer diameter the housing (38) of the flow regulator.