Siemens ASK31N Mounting kit for installing an actuator SAL... on mixing valve VBF21...

A mounting kit is not included when purchasing a new mixing valve VBF21 or servomotor SAL.
If a new installation is used, a surface-mounting kit ASK31N must be purchased separately.

When replacing the mixing valve or servomotor, the old mounting set can perhaps be used.

 ASK31N montage / mounting