Made in Japan
Manufacturer: Toho Seisakusho
Product name: Butterfly Damper And Louver Damper

As shown in Table 1, the louver type has a steep rise, so a small opening can produce a large flow rate. In addition, the butterfly type has a wider control range and better controllability.

Table 2 shows a rough evaluation of the features, so please refer to it when making a selection.

Table 1 Flow characteristics

Table 2 Damper evaluation

Shaft sealing method

The standard structure is shown below.