Valve Stem Packing Set

At Kriloha Ltd., we recognize that the valve stem is the most critical leak path in any fluid system. Our Valve Stem Packing Sets are our engineered answer for “Zero-Leakage” and “Fugitive-Emission-Control”. As a premier global provider of industrial seals, Kriloha has developed a modular packing system that balances mechanical invincibility with the operational agility required for modern industrial plants.

The engineering of our stem packing series is based on Radial Expansion Precision. By utilizing a “sandwich” configuration of precision-molded sealing rings and reinforced headers, we ensure that the compressive load from the gland is converted into a uniform radial seal against the stem. At Kriloha, we verify that our packing materials—whether high-purity graphite or expanded PTFE—maintain their structural integrity under constant cycling, preventing the “seal-decay” that leads to downtime.

Manufacturing these sets involves strict Compliance and Integrity Testing. We ensure that our packing sets meet or exceed international standards for fugitive emissions, such as API 622 or ISO 15848. Whether you are overhauling a high-pressure steam valve or maintaining a critical chemical manifold, Kriloha Valve Stem Packing Sets provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “High-Integrity” technology that secures your assets and protects your environment.

Primary Use Cases

Industrial Isolation Valves: Essential for ball, gate, and globe valves in oil, gas, and chemical refineries.
Control Valve Assemblies: Providing a high-cycle, low-friction seal for automated valves that require precise modulation.
Power Plant Steam Service: Managing high-pressure, high-temperature steam in boiler and turbine systems.
Pharmaceutical & Food Processing: Utilizing FDA-compliant, non-contaminating materials for sanitary valve applications.

FAQ's

What is the difference between “Braided Packing” and a “Packing Set”?
While braided packing is often sold by the roll, a Packing Set is a pre-engineered stack of die-formed rings custom-sized for a specific valve, providing a superior seal and easier installation.

How tight should the gland be adjusted?
The gland should be tightened just enough to stop visible leakage or meet emission standards. Over-tightening can cause excessive stem wear and make the valve difficult to turn.

Can I replace one ring or do I need to replace the whole set?
It is highly recommended to replace the entire set. Mixing old, compressed rings with new ones often leads to uneven loading and premature failure of the new seal.

Are these sets fire-safe?
Kriloha offers sets specifically designed for fire-safe valves, typically utilizing graphite components that maintain their sealing properties during extreme heat events.

What information is needed to order a custom set?
To ensure a perfect fit, we require the Stem Diameter, Stuffing Box ID, and the Depth of the Stuffing Box.