Japan, Toho Seisakusho
Toho Seisakusho Butterfly Damper And Louver Damper
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
butterfly | louver | |
controllability | ○ | × |
sealability | ○ | △ |
Rectification effect | × | ○ |
Base price | ○ | △ |
×: Inferior | ||
△: Slightly inferior | ||
○: Good |
Shaft sealing method
The standard structure is shown below.
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