Fig 1: Old Spray Dry Seal Arrangement
which require radial assembly gaps. O-ring standards typically depict this radial seal type for operation pressures well below those found most in spray driers.
The Click & Dry sealing system requires NO GAP, in fact, the fact that no gap exists between compressive sealing components means that the axial seal arrangement itself can handle far greater sealing pressures that that of conventional radial seal arrangements. This means that the effect of potential system pressure spikes (sometimes more than double the working pressure) upon seals during use is far less an issue than previously with radial seals.
Fig 2: New Spray Dry Seal Arrangement
Axial compressive seal is designed for pressures well above typical dryer operating pressures according to O-ring standards.