Specification :

Pump Sealing Technology

Why Traditional Packings Fail

How a Stuffing Box Should Look When Completely Packed Using Traditional Packings
How a Stuffing Box Looks After Several Gland Adjustments Using Traditional Packings
Traditional packings are mostly fiber with added lubricants that can be squeezed, cooked or washed out, resulting in out-of position lantern rings, over-compressed packing and sleeve wear.

Slade Packed Centrifugal Pumps: Typical Stuffing Box VERSES Slade Packed Stuffing Box
Typical Stuffing Box: A typical stuffing box requires leakage and/ or flush-water to dissipate heat, creating costly housekeeping problems, loss of product and/ or loss of flush-water. Additional rings cannot be added without affecting position of lantern ring.

Slade Packed Stuffing Box: In most applications, a Slade packed stuffing box can be run without flush-water and/ or with virtually no leakage. In many applications, both No-Flush & No-Leak are possible! Additional rings can be added as needed.
Flush-Free & Virtual Leak-Free Service
slade packed stuffing boxDepending on design of equipment and speed of shaft, a permanent split bushing may be installed last ( after 3300G Rings) . Please contact us for a recommendation.
Seals Rotating Equipment

Whereas most pump packings are largely abrasive fibers with added lubricants that can be squeezed, washed or cooked out, Slade 3300G utilizes the self-lubricating qualities of the very best natural, exfoliated graphite.

Incorporating just enough temperature and chemical resistant ‘ carbon fiber’ to make very high tensile strength yarns, Slade’ s patented technology allows the braided packing rings to transfer frictional heat away from high speed shaft sleeves, eliminating the need, in most cases, for cooling water.

Since cooling or flushing is not typically required, there is no need for lantern rings. This eliminates the concern of the lantern rings being adjusted out of position, flush water ports becoming plugged, or sleeve wear caused by the corrosive nature of highly oxygenated water on hardened sleeves.
Pump Applications
For Steam, Nuclear and Hydro-Electric Plants

Boiler Feed Water
Boiler Recirculation
Condensate Pumps
Service Water Pumps
River Water Intake
Heater Drain Pumps
Vacuum Pumps
Clinker Grinders
Fly-Ash Pumps
Lime Slurry pumps
Auxiliary Feed-Water
Fire Pumps

For Pulp and Paper Mills

Refiners
Pulpers
Separators
Deflakers
Stock Pumps
Coating Pumps
Vacuum Pumps
Agitators
Condensate Pumps
Boiler Feed Pumps
Boiler Recirculation Pumps
Stock Chests
Mixers
Steam Vessels
Liquor Pumps
Outlet Devices
3300G – Slade’ s Best All Purpose Pump and Valve Packing
Reinforcement: Corners and yarns of graphite foil reinforced with high strength structural carbon fiber
Temp: Mild Oxidizers to 1800° F/ 1000° C ( for temperatures over 1000° F/ 540° C, consult the factory)
Pressures: Valves to 5000 PSI/ 350 BAR without end-rings
Pumps: Flush-free in many services to 4800 FPM ( 1400 m/ min)
pH Range:
1-14
Applications: Chemicals, steam, hydrocarbons, etc.
Advantages:

One packing inventory for all pumps and valves
Works well on worn sleeves
Difficult to overtighten
No added lubricants to squeeze out or burn off
Eliminates flush-water in most applications
Not necessary to replace entire set, just add ring
Won’ t glaze or harden
Eliminates most leaks
Amperage reduction of 15% is typical
No special end-rings required
Outlasts typical packings by factor of 6
4800 fpm/ 24 ms ( without flush water)
pH 1-14
Operates virtually leak-free in most applications
Low chloride/ sulfur available for nuclear service

Installation:

Check clearances and dimensions
Best to use no more than 5 rings in stuffing box ( use Slade spacer bushings to reduce rings)
Cut rings on the bias ( 45° angle) , stagger joints
Compress each sealing ring at least 25% ( especially the first ring) . Do not compress spacer bushings.
Loosen gland to allow it to relax
Snug the gland bolts and start the pump

3300GLC: Low chloride for nuclear service
3300GLS: Low sulfur for nuclear service

Advantages

Minimizes or Virtually Eliminates Leakage!
Due to its patented construction of natural, expanded graphite yarns, Slade 3300G turns the stuffing box into a heat sink, conducting heat away from shaft, in many applications, eliminating expensive leakage previously needed to cool the stuffing box.

Can Be Operated Flush-Free in Most Applications
Slade 3300G conducts heat away from the shaft/ sleeve, in most cases making flush unnecessary. If media has particulate contamination, a very mild flush should be all that is required.

No flush-water translates into:

Exceptional savings, typically 1/ 2 cent per gallon, or $ 13, 000 annually ( U.S.) ( based on 5 GPM flush system)
No fear of flush-water system becoming plugged or experiencing loss of pressure

Reduces Inventory and Cost

By eliminating die-formed rings ( cut-rings work fine)
Handles most medias, 1-14 pH, eliminating many styles of packing
In many applications, no need to remove old packing, just add a ring
Lasts 4 to 6 times longer than traditional pump packings

Worn Shafts and Sleeves Easily Sealed
Conforms to the geometry of the stuffing box and shaft. Seals most worn sleeves.