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Supagraf® H2

A high performance, unique combination, valve stem packing set designed for hydrogen service.

This packing incorporates Supagraf Premier, one of James Walker’s top-of-the-range fugitive emission control packings that has a long track record of exceptional performance in valves handling hydrocarbon liquid fuels and gases, lubricating oils or processing chemicals including hydrogen.

The performance of the Supagraf Premier graphite packing rings are then enhanced by the use of precision machined carbon rings, inserted at the top and bottom of the stuffing box set and used as intermediary rings.

This product has been third party tested and is validated by James Walker for use in hydrogen service.

Downloading this datasheet provides the following product information:

  • Maximum and minimum temperature capabilities
  • Maximum pressure capability
  • Specifications and chemical properties
  • Industry certifications and approvals
  • How the product is supplied
Downloads

Supagraf H2

English pdf (350 KB) Download
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Compression packing guide

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