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

Name: Moulded Packing Rings, Flexible Graphite, 2-1200 mm, 25 MPa
SKU: VPSK-20250806-VP-03
Availability: InStock
Rating: 5 (1 reviews)

Key Specifications / Features

The Moulded Packing Rings Manufacturer specializes in producing high-performance valve stem packing rings made from flexible graphite. These rings are designed for use in high-temperature steam applications, offering excellent thermal resistance and durability. Available in diameters ranging from 2 mm to 1,200 mm, the packing rings can withstand pressures up to 25 MPa (250 bar). With a density of 1.6 g/cm³, these rings provide superior sealing capabilities and are ideal for critical applications.

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Detail Information

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