Re-designing FBD gasket for perfect fit
A simple change in the design made a considerable improvement in performance.Recently, Western Rubbers had received a request from an established pharmaceutical OEM (Original Equipment Manufacturer), to manufacture 3 silicone inflatable seals to seal the chambers of a Fluidized Bed Dryer machine (FBD).
2. Once pressurized, the seal would expand to inflate axially downwards and seal the bottom chamber of the FBD. However, after a few cycles, it was observed that due to the pressure the seal began to fall out of its groove, hanging downwards.
3. Every time this happened, operator intervention was required to fit the seal securely in the groove before continuing machine operations.
In short, the end user was not only suffering on account of increased production times but increased machine downtime costs as well.
– Notice the ridges that have been provided on either side of the seal, on the seal walls.
– These ridges ensured that the seal is held in place at all times, through the inflation and deflation cycles, without compromising on the sealing functionality of the seal.