Asem Steam Cabinet - Source for Spares?

[sonofdavid]

I am looking for a spare part for an Asem Rio steam cabinet but it seems that Asem or the company that imported them has gone out of business. Does anyone know where I might source Asem or compatible parts? One of the solenoids has gone but unfortunately the part I am looking for incorporates all three solenoids.
Any advice gratefully received.