Ramie Fiber Packing

Ramie Fiber Packing

Core Features

  • High-Tenacity Natural Matrix: Braided from the strongest known natural vegetable fiber—Ramie (China Grass). Ramie fibers possess a tensile strength significantly higher than cotton or flax, making this the most rugged “organic” packing available for industrial and marine use.
  • Multi-Stage PTFE Impregnation: Each individual strand is vacuum-impregnated with a high-density PTFE dispersion. This fills the microscopic voids between the natural fibers, creating a dense, leak-proof barrier that resists “wash-out” even in high-pressure fluid service.
  • Superior Rot and Mildew Resistance: Ramie is naturally resistant to bacteria, fungi, and rot. When combined with our PTFE treatment, the packing becomes virtually immune to degradation in stagnant water, seawater, or damp environments.
  • Non-Abrasive Hardware Protection: Despite its high tensile strength, Ramie is a “soft-tough” material. It provides the mechanical stamina required for industrial pumping without the risk of scoring or “necking” stainless steel shafts, bronze sleeves, or chrome-plated hardware.
  • Excellent Dimensional Stability: Unlike other vegetable fibers that may swell excessively, Ramie resists shrinking and “cold flow.” This ensures the packing maintains a consistent square profile and a reliable sealing “bite.”
  • Low Friction & Heat Dissipation: The PTFE coating ensures a low coefficient of friction, minimizing heat generation at the shaft interface and protecting the packing from “glazing.”

At Kriloha Ltd., we recognize that in the “Heavy-Duty Water” sector, you need the strength of a synthetic with the hardware-friendliness of a natural fiber. The Kriloha Ramie Fiber Packing is our engineered answer for “High-Stamina Marine” and industrial service. As a premier global provider of high-performance seals, Kriloha Gaskets has mastered the Square-Interlock Braid technology required to turn technical Ramie yarns into a high-performance fluid barrier.

The engineering of our Ramie series is based on Structural Integrity. Ramie fibers do not lose their strength when wet; in fact, they often become stronger, which is critical for marine stern glands. At Kriloha, we utilize a specialized “Deep-Soak” PTFE process. This ensures that as the packing wears over thousands of hours, a fresh layer of PTFE is always available at the shaft interface. We also treat the braid with a secondary high-temperature break-in lubricant to ensure a cool startup.

Manufacturing this packing at Kriloha involves strict Fiber-Length Calibration. We ensure our Ramie yarns are “long-staple,” providing maximum resistance to “shredding” under high-torque conditions. Whether you are sealing a commercial vessel’s stern tube or a massive industrial wastewater pump, Kriloha Ramie Fiber Packing provides the mechanical invincibility and hardware safety your facility demands. By choosing Kriloha Ltd., you are investing in a “Premium-Natural” technology that protects your equipment while remaining budget-friendly.

Primary Use Cases

  • Marine Stern Glands & Rudder Posts: The premium choice for propeller shafts on commercial vessels, tugboats, and yachts where high strength and rot resistance are mandatory.
  • Paper & Pulp Mills: Ideal for stock lines, “white water,” and slurry processing where a combination of mechanical durability and non-staining properties is required.
  • Wastewater & Sewage Treatment: Handling grit-loaded fluids and organic solids that require a tough, lubricated fiber to maintain a seal under pressure.
  • Mining & Filter Presses: Providing a durable, high-pressure seal for abrasive mineral slurries and dewatering equipment.
  • High-Volume Irrigation Pumps: Used in massive agricultural pumps where reliability in harsh, outdoor environments is essential.
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FAQs

Is Ramie better than Flax or Cotton?

Yes. Ramie is the strongest natural fiber and has the best resistance to rot and saltwater. It is designed for higher-pressure and more abrasive applications where flax or cotton might fail prematurely.

Will this packing score my propeller shaft?

No. Ramie is a non-abrasive vegetable fiber. It provides a robust seal without the risk of scoring 316 Stainless Steel, bronze, or brass hardware.

Can I use this for concentrated chemicals?

It is highly resistant to oils, solvents, and neutral fluids (pH 4–11). For highly concentrated acids or alkalis (pH 0–14), Kriloha recommends our Pure White PTFE Filament packing.

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

A steady drip (approx. 10–12 drops per minute) is recommended during operation. This flow dissipates frictional heat and ensures the PTFE can maintain a lubricating film at the shaft interface.

How do I install Ramie Fiber 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 pump reaches operating speed to ensure the PTFE can establish a lubricating film.

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