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Pump Packings

Advantages
Pump Sealing Technology
Pump Applications
Product Selection
Product Information
Installation

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.

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
     

Product Selection

Product Information 

3300C – Slade’s Cost Effective Pump and Valve Packing
Reinforcement: Each yarn of graphite foil is reinforced with high strength structural carbon fiber
Temp:

Inert environment to 1800°F/1000°C. Some mild oxidizers to   1800°F/1000°C (Consult the Factory, pressure dependent). 
Pressures: Valves to 1000 PSI/70 BAR (for higher pressures, consult factory)
pH Range: 1-14
3300W: Inconel wire reinforced for higher pressures: 5000 PSI/350 BAR
3300LC: Low chloride, high purity for nuclear service 
3300LS: Low sulfur, high purity for nuclear service 
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: Inert environment to 1800°F/1000°C. Some mild oxidizers to 1800°F/1000°C (Consult the Factory, pressure dependent).
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:
  1. Check clearances and dimensions
  2. Best to use no more than 5 rings in stuffing box (use Slade spacer bushings to reduce rings)
  3. Cut rings on the bias (45° angle), stagger joints
  4. Compress each sealing ring at least 25% (especially the first ring). Do not compress spacer bushings.
  5. Loosen gland to allow it to relax
  6. Snug the gland bolts and start the pump
3300GLC: Low chloride for nuclear service 
3300GLS: Low sulfur for nuclear service 
3300K – Slade’s Best Triplex Pump, Reciprocating Packing
Reinforcement: Same as 3300C, but with added Kevlar fiber corners
Temp: Maximum temperature of 500°F/260°C
Applications: Reciprocating/plunger, wastewater, steam and ammonia pumps
Pressures: 5000 PSI/350 BAR
pH Range 2-12
3300CJ – Slade’s Anti-Extrusion Carbon Fiber Packing
Description: Carbon jacketed 3300C
Pressures: Valves to 1000 PSI/70 BAR (for higher pressures, consult factory)
Application: Used as anti-extrusion end-ring
3300CJK – Slade’s Anti-Extrusion Carbon Fiber Packing
Description: 3300C with Kevlar corners
Temp: 500°F/260°C
Application: Used as end-ring to provide anti-extrusion (especially with large throat clearances) and to provide barrier to particulate contamination
DSS Sealing System

                                                   Replaces expensive Mechanical Seals

                         The SLADE DSS Sealing System can achieve Mechanical Seal

                                                       performance at packing costs.   

                             DSS Bushings are hinged to install without dismantling the pump

An alternative to machining costly bushings is to utilize Slade's DSS Sealing System. No machining, no dismantling of the pump. Achieve leak-free, flush-free service. It comes fully unitized, ready to install, and we'll inform you of the gland compression required. If you follow Slade's installation instructions, you eliminate fear of over-tightening.

Contact Slade for information on the DSS bushings.

Installation

  • Check clearances and dimensions
  • Best to use no more than 5 rings in stuffing box (use DSS rings, Slade's spacer bushings, to reduce rings)
  • Cut rings on the bias (45° angle), stagger joints
  • Compress each ring 25%-30%  (use packing compressors as needed)
  • Loosen gland to allow it to relax
  • Snug the gland bolts and start the pump