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Supagraf® RibbonPak - for valves

Description
High purity exfoliated graphite ribbons, plaited into a length-form packing for convenient on-site maintenance.

Typical applications
High speed rotary pumps handling water or slurry in pulp and paper processing. Also a general purpose valve stem packing for steam and chemical processing duties.

Prime features

• Excellent chemical resistance across an exceptionally wide temperature range. 
• Replaces moulded graphite sealing rings.
• Flexible and compressible.
• Easy to install - no special tools needed.
• Reduces stockholding requirements.

Chemical properties
Chemically inert within the range pH 0-14, excluding strong oxidising agents. Negligible volatile content. Low in extractable trace impurities such as chloride and sulphur.

Service capabilities - valve stem duties
Maximum operating temperatures
       Steam:  +550°C.
       Oxiding conditions:  +450°C.
       Non-oxidising:  +850°C. 
Minimum operating temperature:  -200°C.
Maximum system pressure:  250bar.

Service capabilities - centrifigal pumps and rotary equipment
Maximum operating temperatures
       Steam:   +550°C.
       Oxiding conditions:  +450°C.
       Non-oxidising:  +850°C.
Minimum operating temperature:  -200°C.
Maximum shaft speed:  25m/s.
Maximum system pressure:  25bar.

How supplied
Ex-stock: all popular square sections from 3mm upwards, boxed in 8m lengths. Also supplied as split preformed rings and sets. Full fitting instructions are included. 

Click here to download the Compression Packing Guide pdf (2.17MB)

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