Flax Packing (Grease Impregnated)

Flax Packing (Grease Impregnated)

Core Features

  • Natural High-Tenacity Flax Base: Braided from the highest quality, long-staple flax (linen) fibers. Flax is naturally stronger and more abrasion-resistant than cotton, making it the superior “heavy-duty” vegetable fiber for marine and industrial water service.
  • Deep-Soak Grease Saturation: Every individual strand is vacuum-impregnated with a specialized, high-viscosity mineral or animal-based grease. This ensures the lubricant is present throughout the entire cross-section of the packing, providing a consistent “wet” seal.
  • Superior Rot Resistance: Flax fibers are naturally resistant to decay in wet environments. When combined with our heavy grease treatment, the packing becomes virtually immune to waterlogging, mildew, and bacterial growth in stagnant water.
  • Ultra-Gentle on Hardware: Despite its mechanical strength, flax is a non-abrasive organic material. It provides a robust seal without the risk of scoring or “necking” soft metal shafts like bronze, brass, or untreated stainless steel.
  • High Thermal Conductivity (at low speeds): The integrated grease acts as a heat-transfer medium, helping to dissipate frictional energy away from the shaft interface during standard water-pumping operations.
  • Excellent Dimensional Stability: The tight square-interlock braid ensures the packing maintains its profile and a reliable sealing “bite” even under the constant pressure of a marine stern gland.

At Kriloha Ltd., we recognize that some of the most critical seals in the world are those that keep a vessel afloat. For decades, maritime and water-utility engineers have relied on the natural stamina of flax to protect their rotating assets. The Kriloha Grease-Treated Flax Packing is our engineered answer for “Heavy-Duty Marine” universal service. As a premier global provider of braided seals, Kriloha Gaskets has mastered the Plait-Braid technology required to turn high-strength flax yarns into a high-performance fluid barrier.

The engineering of our Flax series is based on Mineral-Fiber Synergy. Flax possesses a naturally high tensile strength that allows it to withstand the torque of large propeller shafts without “shredding.” At Kriloha, we utilize a specialized vacuum-impregnation process to force industrial grease deep into the fiber core. This creates a “Lubricant Reservoir” that ensures a cool startup and long-term protection against the corrosive effects of seawater. This grease also acts as a preservative, ensuring the natural flax remains pliable even during seasonal dry-docking.

Manufacturing this packing at Kriloha involves strict Staple-Length Calibration. We ensure our flax yarns are free from short “tow” fibers that could cause the packing to break down prematurely. Whether you are sealing a commercial vessel’s stern tube or a massive municipal water pump, Kriloha Grease-Treated Flax Packing provides the mechanical simplicity and hardware safety your facility demands. By choosing Kriloha Ltd., you are investing in a “Maritime-Grade” technology that protects your equipment while remaining budget-friendly.

Primary Use Cases

  • Marine Stern Glands & Rudder Posts: The global “gold standard” for propeller shaft sealing on yachts, commercial fishing vessels, and tugboats.
  • Municipal Water Utility Pumps: Providing a clean, lubricated seal for large-diameter cold water pumps where cost-efficiency and hardware safety are paramount.
  • Paper & Pulp Mills: Used in “clean water” sections of the mill where a reliable, non-staining vegetable fiber is required.
  • Agricultural Irrigation: Ideal for high-volume irrigation pumps that require a durable, field-serviceable seal that is easy to install and adjust.
  • Hydro-Electric Turbines: Sealing the main shafts of small-scale water turbines and water wheels.
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FAQs

What is the difference between Flax and Cotton packing?

Flax is significantly stronger and more durable than cotton. It is better suited for larger shafts, higher pressures, and the aggressive nature of seawater in marine stern glands.

Will this packing score my propeller shaft?

No. Flax is a soft organic fiber. It is virtually impossible for this packing to score a metal shaft, making it the safest choice for bronze or brass sleeves.

What is the maximum temperature for Flax packing?

Flax is designed for moderate temperatures, typically up to +100°C to +120°C (212°F to 248°F). Beyond this, the grease may liquefy and the natural fibers may begin to char.

Does it require a specific “leak-off” rate?

Yes. A steady drip (approx. 10–15 drops per minute) is essential, especially in marine stern glands. This flow dissipates heat and ensures the grease film is maintained at the shaft interface.

How do I install Grease-Treated Flax Packing?

Cut the packing into rings with a 45° miter joint. Stagger the joints by 90°. During startup, tighten the gland nuts finger-tight and adjust slowly as the equipment reaches operating speed to ensure the grease can establish a lubricating film.

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