Ultra-high Temperature Packing Set

Ultra-high Temperature Packing Set

Core Features

  • Extreme Thermal Resilience: Specifically engineered to maintain structural integrity in oxidizing atmospheres up to +700°C and even higher in non-oxidizing or steam environments.

  • Hybrid Material Composition: These sets typically utilize a sophisticated combination of Phlogopite Mica and High-Purity Graphite, where the mica acts as an oxidation shield for the graphite core.

  • Thermal Expansion Matching: The materials are selected to match the expansion coefficients of high-alloy valve steels, preventing “breathing” leaks during rapid thermal cycling.

  • Inconel® Wire Reinforcement: End-rings are often reinforced with Inconel mesh to provide maximum anti-extrusion strength and mechanical stability at red-heat temperatures.

  • Zero-Volume Loss: Formulated to minimize the “burn-off” or volume loss common in standard graphite seals, ensuring long-term seal density without frequent gland adjustments.

At Kriloha Ltd., we understand that standard sealing limits are just the starting point for modern energy infrastructure. Our Ultra-High Temperature Packing Sets are our engineered answer for “Extreme-Thermal-Containment” and “Uninterrupted-Service.” As a premier global provider of industrial seals, Kriloha has developed a thermal barrier system that balances mechanical invincibility with the operational agility required for high-heat environments.

The engineering of our Ultra-High Temp series is based on Oxidation Shielding Technology. By alternating layers of flexible graphite with thermal-grade mica, we create a “Tortuous Path” that prevents oxygen from reaching the graphite fibers, effectively stopping the degradation that leads to seal failure. At Kriloha, we verify that every component is precision-molded to ensure that the “Spring-Rate” of the packing stack remains active, providing a constant live seal even as temperatures fluctuate by hundreds of degrees.

Manufacturing these sets involves strict Thermal-Gravity Analysis (TGA). We ensure that our material blends exhibit the lowest possible weight loss at peak temperatures, guaranteeing that the packing you install today will remain gas-tight for years of service. Whether you are sealing a supercritical steam valve or a high-heat refinery header, Kriloha Ultra-High Temperature Packing Sets provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “Thermal-Shield” technology that secures your highest-value assets against heat-induced failure.

Primary Use Cases

  • Superheated Steam Isolation: Providing critical sealing for bypass and isolation valves in modern power plant steam headers.

  • Refinery Fired Heaters: Managing high-temperature hydrocarbon flow in process heaters and crackers.

  • Thermal Energy Storage: Sealing valves in concentrated solar power (CSP) systems or molten salt loops.

  • Exhaust Gas Recirculation: Withstanding the extreme heat and corrosive gases in heavy industrial exhaust and waste-heat recovery systems.

FAQ's

What is the primary difference between this and a standard graphite set?
Standard graphite begins to oxidize at +450°C; this set incorporates mica and specialized inhibitors to push that limit significantly higher, often reaching +700°C or more.

Does this packing become brittle at high temperatures?
No. The combination of high-purity graphite and flexible mica is designed to remain resilient and conformable, ensuring it can still adapt to stem movement after long-term heat exposure.

Are these sets fire-safe?
Yes. The inorganic nature of the mica and graphite components makes these sets inherently fire-safe, often exceeding API 607 requirements.

Can they handle high pressure as well as high heat?
Absolutely. When paired with our Inconel-reinforced end-rings, these sets are rated for high-pressure Class 2500# and above.

What is the recommended installation protocol?
Because of the high temperatures involved, Kriloha recommends using a Live-Loading (Spring) System on the gland bolts to compensate for any minor material settlement over time.

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