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Stuffing Box Packing
 
 

Ultra-X is a braided hydrophobic fiber packing.  Because of its composition and design it lasts more than 5X longer and outperforms all flax and PTFE packings in marine stern tube, rudder and bulkhead applications.

Available in 13 Standard Sizes.

Size*

1/8"

3/16"

1/4"

5/16"

3/8"

7/16"

1/2"

9/16"

5/8"

3/4"

7/8"

1"

1-1/4"

Approx. FT/LB

67

35

20

13

9.5

7

5

4

3.2

2.3

1.8

1.4

1

Standard spools of 1, 3, 5 and 10 pounds.

Bulk spools of 25 and 35 pounds are also available.

*Custom size packing is available upon request.

 
 

Expanded PTFE: Out performs standard flax and PTFE

High tensile strength: Will not get consumed in use

Graphite imbibed/silicone impregnated: Lowest friction of any marine packing

Self-lubricating: Virtually needs no water for lubrication

Stays pliable: Never gets brittle, hard or abrasive

High thermal conductivity: Over 5 times more thermally conductive than flax and PTFE

Grease-free installation: Easy to cut and handle. Conforms easily

Lowlife-cycle cost: Virtually eliminates maintenance, shaft scoring & replacement

Ultra-X

FLAX

Ease of Installation

Pliable, conforms easily for clean, tight seal

Messy to handle, cut and install

Lubrication

Self-lubricating, virtually no water needed

Requires water

Replacement

Stays flexible and pliable, easy to remove

Dries out, gets brittle, difficult to remove

Operating Condition

Stays pliable, non-abrasive

Hardens, becomes brittle and abrasive

Resistance to Overheating

Maximum temperature 550°F

Maximum temperature 150°F

Thermal Expansion

Virtually none

Will experience swelling

Leakage

Practically eliminated

Will experience leakage

Heat Dispersion

11.9 BTU in/h ft2

°F

2.4 BTU in/h ft2

°F

Environment

No oily contaminated water in bilge, no EPA issues

Needs holding tanks or remediation

Maintenance

Once installed, needs no maintenance

Need to add rings when consumed

Equipment Damage

Virtually eliminates shaft scoring and wear

Gets hard and abrasive causing costly damage

Longevity

Normally lasts until scheduled haul out

Consumed or destroyed at high shaft speeds

 

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