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what is the best pump and mechanical seal technology?
by：DMS Seals
2019-10-17
The term \"Best Technology\" appears in recent government regulations and daily factory conversations.
So what is the best mechanical sealing and pump technology today?
My point is: the surface material that is identifiable by the sealing technology material is compatible with the fluid to be sealed and with any cleaner or solvent.
Be able to handle the full temperature range of the product you are sealing.
Viton is compatible with water.
Hard surfaces that are not sensitive to mild changes or corrosive cleaners.
Unfilled carbon graphite sealing surface.
Elastic material without shelf life.
No stainless steel spring or bellows.
Seal design seal should be closed together with spring and system hydraulic.
Hydraulic balance design with low heating.
Two-way balance in double seal design.
Built-in pump ring for double seal of cartridge.
Series configuration in double seal design.
There is no \"back-to-back\" rotation design.
Non-fixed configuration
Cartridge application.
Self-aligning design for fixed cartridge version.
A spring located outside the fluid.
When the surface is worn, the rubber should move to a clean surface.
Elastic material without spring loading.
Wear-free design.
Has nothing to do with Shaft tolerances and finish.
Static elastic material away from the sealing surface.
Cartridge sleeve sealed at wet end.
Vibration damping of sealing surface.
The seal should be close to the bearing bracket.
There is no elastic material on the sealing surface.
Faces in compression.
Wide range of operations. Low hysteresis.
Equal and opposite clamping of fixed surfaces.
Sealing fluid located at the outer diameter of the sealing surface.
Leak detection capability.
Not related to shaft finish and tolerance.
Compensate for thermal expansion and adjustment.
Meets unorganized emission standards.
Simple installation.
Eliminate all rubber if possible.
Short lengths that allow space for the shaft support bushing.
Finite element analysis of all components.
A method of supporting the shaft when the bearing fails.
Trap gasket.
Other packages can survive a drop of 1 m.
Backup seal.
Sealing surface vents with built-in vertical applications.
There is no adhesive rubber in the sealing structure.
Best pump technology for low shaft diameter length ratio.
L3/D4 below 60 (2 in metric).
Large operating windows c or D Framework adapter for simplifying drivers.
Center Line Design for thermal expansion.
Extra large stuffing box
Inhalation recycling, with a few exceptions.
Sufficient bearing holding force (no snap rings).
Positive bearing seal.
Oil level indication.
Availability of oil cooling. Low NPSH.
Double screw shell to prevent shaft deflection.
Suction specific speed number Below 8500.
Dynamically balance rotating components.
The specific speed number of the impeller selected for the application.
Duplex metal impeller.
Impeller investment casting.
Adjust the impeller from the wet end to prevent the load change of the mechanical sealing surface.
So what is the best mechanical sealing and pump technology today?
My point is: the surface material that is identifiable by the sealing technology material is compatible with the fluid to be sealed and with any cleaner or solvent.
Be able to handle the full temperature range of the product you are sealing.
Viton is compatible with water.
Hard surfaces that are not sensitive to mild changes or corrosive cleaners.
Unfilled carbon graphite sealing surface.
Elastic material without shelf life.
No stainless steel spring or bellows.
Seal design seal should be closed together with spring and system hydraulic.
Hydraulic balance design with low heating.
Two-way balance in double seal design.
Built-in pump ring for double seal of cartridge.
Series configuration in double seal design.
There is no \"back-to-back\" rotation design.
Non-fixed configuration
Cartridge application.
Self-aligning design for fixed cartridge version.
A spring located outside the fluid.
When the surface is worn, the rubber should move to a clean surface.
Elastic material without spring loading.
Wear-free design.
Has nothing to do with Shaft tolerances and finish.
Static elastic material away from the sealing surface.
Cartridge sleeve sealed at wet end.
Vibration damping of sealing surface.
The seal should be close to the bearing bracket.
There is no elastic material on the sealing surface.
Faces in compression.
Wide range of operations. Low hysteresis.
Equal and opposite clamping of fixed surfaces.
Sealing fluid located at the outer diameter of the sealing surface.
Leak detection capability.
Not related to shaft finish and tolerance.
Compensate for thermal expansion and adjustment.
Meets unorganized emission standards.
Simple installation.
Eliminate all rubber if possible.
Short lengths that allow space for the shaft support bushing.
Finite element analysis of all components.
A method of supporting the shaft when the bearing fails.
Trap gasket.
Other packages can survive a drop of 1 m.
Backup seal.
Sealing surface vents with built-in vertical applications.
There is no adhesive rubber in the sealing structure.
Best pump technology for low shaft diameter length ratio.
L3/D4 below 60 (2 in metric).
Large operating windows c or D Framework adapter for simplifying drivers.
Center Line Design for thermal expansion.
Extra large stuffing box
Inhalation recycling, with a few exceptions.
Sufficient bearing holding force (no snap rings).
Positive bearing seal.
Oil level indication.
Availability of oil cooling. Low NPSH.
Double screw shell to prevent shaft deflection.
Suction specific speed number Below 8500.
Dynamically balance rotating components.
The specific speed number of the impeller selected for the application.
Duplex metal impeller.
Impeller investment casting.
Adjust the impeller from the wet end to prevent the load change of the mechanical sealing surface.
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