Yes. You'll need an insert cable though. Something like this. An insert cable has a TRS (tip ring sleeve) end, and two TS (tip sleeve) ends. The TS ends are labelled RING and TIP. Plug the TRS end into the Superdelay expression input. Plug the TS end labelled RING into the IN of the volume pedal. Plug the TS end labelled TIP into the OUT of the volume pedal.
Volume pedals tend to use potentiometers that have a logarithmic taper. The Superdelay ideally wants a linear taper. This might cause some weirdness. But try it out if you have an insert cable and a volume pedal sitting around!
Thanks to John for sending us this info.