Moulded Packing Rings, Flexible Graphite, 2-1200 mm, 25 MPa

Aug 06, 2025

Product Name: Graphite Moulded Rings, Valve Stem Packing
Material: Flexible Graphite
Diameters: 2-1200 mm
Pressure: 25 MPa/250 bar
Tmperature Range: -200°C to 650°C (Steam)
Density: 1.6 g/cm3 (Valve Stem)

Material Properties

Graphite Purity: ≥99.5%
Sulphur Content: ≤300 ppm
Chloride Content: ≤10 ppm
Coefficient of Friction to Steel: 0.05
pH: 0 to 14 (excluding strong oxidizers)

Material Composition

Made from high-purity flexible graphite foil
Contains oxidation inhibitors
No binders, elastomers, or fillers added
Available in three grades differentiated by graphite foil purity

Key Features

Outstanding sealing performance over long periods without adjustment
Exceptional chemical resistance across a broad pH range
Wide operational temperature range

Typical Applications

Valves and rotary equipment sealing virtually all media
High-temperature steam systems
Demineralised water
Heat transfer fluids
Petroleum products
Organic and inorganic acids and alkalis
Hot waxes and oils

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www.chinatopper.com
Address: Xiamen
Phone: 86-592-5819200
Business Type: Trading, Industry & Trading, Manufacturer,

Supplier Website

Source: https://www.valvepackingsealkits.com/moulded-packing-rings-flexible-graphite-2-1200-mm-25-mpa.html