MECO HB Standard Screw Conveyor Shaft Seals
Available from MECO Shaft Seals
The MECO HB Seal for screw conveyors replaces standard wastepack housings. The HB Seal cavity is charged with low-pressure air or gas, which acts as a barrier fluid to provide pneumatic seal face loading. This is a simple and effective way to check installation integrity and monitor seal performance. HB Seals ensure parallelism and flatness to maximize product containment and minimize barrier gas
consumption. Alternatively, the HB seal my be reconfigured to operate without a barrier fluid, using a hose clamp
to energize the seal faces. This model is known as our “HC” variation.
The HB/HC comes in five, C.E.M.A.-standard sizes for US inch screws, and in eleven standard metric sizes. All are built using one of a series of five housings, designed to fit standard, 4-bolt flange bearings. Additional size shafts, up to 4.07" (103mm) can also be accommodated.