Graphite Packing for Gate Valve, ISO 15848-1, 65 mm * 85 mm

Low Emission Packing Set for Class 600 LB API 6D Gate Valve

This high-performance Low Emission Packing Set is specifically engineered for use in Class 600 LB gate valves compliant with API 6D standards. Designed to deliver exceptional sealing reliability under demanding industrial conditions, the packing set is composed of 5 precision-formed rings, with an inner diameter of 65 mm and an outer diameter of 85 mm.

High-Purity Graphite Packing Set Reinforced with Inconel 600 — Engineered for Performance, Reliability, and Compliance

This advanced graphite packing set is a premium sealing solution designed for demanding industrial applications requiring exceptional thermal, chemical, and mechanical resistance. Manufactured using high-purity (≥99%) flexible graphite reinforced with 20% Inconel 600 wire, the product combines the natural resilience and heat resistance of graphite with the tensile strength and structural stability of a high-performance nickel-chromium alloy. This fusion of materials ensures the packing maintains dimensional integrity and sealing efficiency even in volatile or alternating operating conditions.

Superior Material Composition

The graphite used in the packing is refined to a purity level of at least 99%, minimizing impurities that can lead to corrosion, leakage, or degradation over time. Reinforcement with Inconel 600 wire — known for its resistance to oxidation, corrosion, and high-temperature scaling — further improves the mechanical stability of the packing. This makes it an ideal choice for dynamic applications where vibration, mechanical movement, or pressure fluctuations are present.

The packing also complies with strict environmental and safety regulations concerning hazardous materials. With a sulfur content of ≤50 PPM and chlorine content of ≤20 PPM, the packing minimizes the risk of chemical reaction or degradation in corrosive environments. Its composition is particularly beneficial in applications that involve stainless steel equipment or are sensitive to halogen-induced corrosion.

Extensive Operating Range

Engineered for versatility and reliability, the packing operates effectively in a wide range of temperatures and pressures:

Temperature Range: -45°C to +425°C

Maximum Pressure: 25 MPa

Maximum Shaft Speed: 2 m/s

pH Range Compatibility: 0 to 14

This broad chemical and thermal compatibility makes the packing suitable for a wide variety of media, including steam, oils, hydrocarbons, solvents, acids, alkalis, and alcohols. It can be used in both static and dynamic sealing applications — such as valve stems, rotary equipment, pumps, and mixers — across industries ranging from petrochemical and power generation to pharmaceuticals and food processing.

Certified for Emissions Control

One of the defining features of this packing set is its low-emission performance. The product has been tested and certified according to ISO 15848-1, TA-Luft, and API 622 standards — internationally recognized benchmarks for fugitive emission control. These certifications verify its ability to limit emissions of volatile organic compounds (VOCs) and other hazardous substances, contributing to safer, cleaner, and more sustainable industrial operations.

In industries where emission reduction is both a regulatory requirement and a corporate commitment, this packing offers a dependable solution. It helps operators meet strict environmental guidelines without compromising on sealing performance or operational reliability.

Outstanding Thermal Stability and Sealing Performance

The reinforced design ensures consistent sealing under both high and low temperature cycles. Unlike conventional packing materials that may deteriorate, expand, or contract with temperature variation, this graphite-Inconel hybrid packing remains dimensionally stable, providing zero leakage fluctuation under alternating thermal cycles. This is critical in systems with start-stop cycles or frequent thermal transitions — such as steam valves, turbine systems, and thermal fluid handling equipment.

Its superior compressibility and resilience make installation and adjustment straightforward, while its anti-extrusion characteristics ensure long-term stability, even under high-pressure conditions. Maintenance intervals are reduced, and the overall reliability of the equipment is improved, resulting in lower total cost of ownership.

Unmatched Value in Global Markets

Despite its premium-grade construction and globally recognized certifications, this graphite packing set is offered at a highly competitive price point. On average, the cost is less than one-fourth of similar offerings from major European and North American brands, delivering exceptional value without any trade-off in performance, reliability, or compliance.

This makes the product especially attractive for OEMs, plant operators, and maintenance contractors seeking high-quality sealing solutions on tight budgets. It also allows for economical stocking and distribution in large-scale industrial projects or export-focused procurement programs.

Conclusion

With its advanced composition, versatile operating capabilities, low-emission certification, and cost-effective pricing, this graphite packing set is a standout choice for industrial sealing needs. It represents the ideal balance of performance, safety, and affordability — a product that not only meets but exceeds the expectations of modern industry. Whether deployed in new installations or retrofit upgrades, it offers robust protection and long-term reliability in the most challenging operating environments.

To support proper implementation and maximize performance, the product includes professional technical guidance for both installation procedures and overall valve system integration. This ensures ease of use and optimal functionality throughout the valve's service life, making it a trusted choice for operators in the petrochemical, oil & gas, chemical processing, and power generation industries.Know more about China Manufacturer