What basic information does a manufacturer need to start a quote?
Need a shaft seal? What basic information does a manufacturer need to start a quote?
Designing a mechanical shaft seal to meet the specific needs of your machinery and process parameters requires sharing information. To ensure the best design and seal performance, open dialog between the customer and the seal manufacturer starts with the first inquiry.
To start the discussion and allow a chance for a rapid proposal, providing available specifications or your best estimates to the bullets listed in phase 1 is sufficient. As the interest and feasibility are met, expanding the discussion into Phase 2 and Phase 3 confirms and refines the 1st phase results.
Phase 1> understanding the basics for the initial feasibility and proposal stage.
- Shaft diameter:
- Shaft RPM:
- Shaft position: Horizontal, Vertical or Inclined.
- Pressure ranges:
- Temperature ranges:
- Duty Cycle:
- Explosive concerns (y/n):
- Process material: liquids, slurries, pastes, dry powders, vapors, all that apply.
- Any known or specified materials of construction available to consider or eliminate, please share? If TBD, we start with typical materials for the outlined parameters.
Phase 2> understanding the physical space available. checking fit, sizing and serviceability of the seal.
- Axial space open along the shaft from the mounting surface to the bearing, coupling or axial obstructions. Note any steps in shaft diameters or sleeve protrusions too.
- Radial clearance around the shaft. If obstructed at one or two positions, how far away and how much open space is available.
- Mounting bolt pattern, bolt or stud type, quantity, size and position on a clock face.
- New build or existing equipment?
Phase 3> expanding upon the understanding of the operational parameters,assembly of the machine and application history.
- Expanded discussion on first two phases to refine and define the specifics of the duty cycle, operating conditions and possible cleaning methods or service cycles.
- History of the equipment
- History of the process
- Past sealing approaches
- Materials of construction review
- Purge and quench controls and approaches
- Explosion protections or ATEX review
- Other details specific to the application
Paul Wehrle, Chief Engineer | George Lavoie, Marketing Manager