Double professional seals in the TB07 series have the same design-features as the "TB04" of single seals. Apart from the installation length of the drive collar, all professional fitting dimensions (d1 < 100 mm) conform with EN 12756 (DIN 24960).
Double seals to DIN 24960:
DIN specifies single seals in back-to-back arrangement. It is possible, therefore, to choose from the following combinations :
As Burgmann’s recommendation :
unbalanced/unbalanced (z.B. M7N/M7N)
balanced/balanced (z.B. H7N/H7N)
unbalanced/balanced (z.B. M7N/H7N)
Performance Capabilities
d = 18 - 200 mm
p = 16 - 230 bar
t = -50 – 200 °C
vg = 20 m/s
