Marion Has Four Styles Of Shaft Seals. Clean-Ability and Maintenance Requirements Will Determine the Appropriate Seal Selection.
Style E-Stuffing Box Seal
- A machined, barrel housing is welded to the mixer end plate
- A seal washer and woven packing rings are used
- The adjustable packing gland is field tightened to accommodate packing wear
- Optional air-purge is available to prevent migration of material along the shaft
- Ideal for most applications with periodic maintenance requirements
- Machined seal housing equipped with threaded air purge connection
- Standard on all chopper shaft applications
Style E - Split Seal
- Machined seal housing is designed for quick disassembly and clean-out
- Adjustable "finger knobs" allow maintenance without the use of tools
- TFE/ synthetic or "food grade" Teflon packing materials are used
- Machined seal plate is attached to the mixer end plate with no exposed cracks or crevices
- Optional air purge is available to prevent migration of materials along the shaft
- Ideal for sanitary applications where frequent cleaning is required
- Machined mounting plate creates sanitary interface with mixer
- Food grade packing materials are available
Mechanical Seal
- Seals use mechanical interference of machined parts to prevent migration of material along the shaft
- Air or liquid purge options are available
- Once installed and adjusted, mechanical seals require less periodic maintenance
- Mechanical seals are designed to accommodate greater amounts of shaft run-out
- Ideal for liquid or pressure applications
- Precision machined components
- Reduces shaft wear
Style B - Inside/Outside Seal
- Cast iron seal housings are through-bolted on either side of the mixer end plate
- The housings are machined to accept either felt or packing rings
- An oil or grease lubricant port is piped to the exterior of the mixer
- This rugged seal design is well suited for abrasive environments with dry materials
- Single or double seal designs
