Reinforced graphite gasket with nickel coating Euroseal® 212 NNK
The EUROSEAL® 212 NNK is a reinforced graphite gasket with nickel coating by General Packing Italy is the most advanced solution for high-performance industrial applications. The perfect balance between the mechanical strength of AISI 316L stainless steel, the sealing performance of expanded graphite, and the protection offered by the nickel coating makes it the ideal technical choice for critical systems.
Structure and Materials
The 212 NNK is a graphite and nickel-reinforced gasket composed of:
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A tanged AISI 316L insert with a grater-like profile, ensuring perfect mechanical bonding between the graphite layers;
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Two layers of expanded graphite, processed in-house by General Packing;
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An external nickel coating that protects against oxidation at temperatures above 450°C;
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Inner ring: prevents fluid passage and enhances structural rigidity;
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Outer ring: facilitates flange insertion and ensures perfect centering.
Technical and Performance Advantages
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Heat resistance up to 800°C
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Pressure resistance up to 100 bar
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Easy removal: the nickel coating prevents the gasket from sticking to the flanges
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High chemical compatibility thanks to carefully selected materials
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Compressibility 30% and Recovery 21%: ensures consistent performance even with imperfect flange matching
Recommended Industrial Applications
This graphite and nickel gasket is ideal for:
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Chemical plants
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Refineries and petrochemical facilities
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Thermoelectric power plants
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Lines exposed to severe thermal cycles and oxidizing agents
DUAL Version: One Code for Multiple Flanges
The 212 NNK DUAL version has been developed to fit both ASA 150/300 and UNI PN 16/40 flanges. This solution:
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Reduces stock inventory by 50%
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Eliminates the risk of incorrect installation
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Specifying “DUAL” in your next order enables more efficient maintenance management
Compliance and Certifications
The EUROSEAL® 212 NNK gasket is certified:
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ASTM D635 (flammability test)
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ASTM F36, F37, F38 (compressibility, air leakage, creep relaxation)
Why Choose General Packing Italy
With over 60 years of experience and three production plants, General Packing Italy is the go-to partner for high-performance industrial gaskets.
The EUROSEAL® line is the result of technology, reliability, and safety, backed by a qualified technical team providing expert consultation and post-sales support.
