UNIGRAF® Low Emission Packing for Valves and Fittings

The gland packing is braided and consists of permanently elastic, expanded graphite fibers (c-content >98%), inconel reinforced. The packing is fitted with a special high-temperature waterproofing and a corrosion inhibitor. Through excellent cross-sectional density and special surface texture, very low friction and leakage rates are achieved even under extreme conditions to fulfill TA Luft requirements. Ready to install, compression moulded packing according to customer specification, as packing sets. Bulk goods in catons: 1 kg up to 6 mm square, 2 kg up to 10 mm square, 3 kg up to 13 mm square, 5 kg starting from 14 mm square.
Article Number


Temperature (min) -200 °C
Temperature (max) 400 °C
Chemical resistance (pH) 0-14
Density approx. (g/cm³) 1.75 g/cm³
Material structure Graphitfolie, Inconel
Waterproofing PTFE

Range of applications

Valves (Vg) 2 m/s
Valves (p) 350 bar


abrasive and sticky media not suitable
Water, domestic water, sea water suitable
Hot water, boiler dining water suitable
Vapen, acid gases, nitrogen suitable
oxygen not suitable
Mineral oils, animal fats suitable
Heat carrier oils, synthetic oils suitable
Alcalia diluted, salt solutions suitable
Alcalia concentrated limited suitability
Anorg. Diluted acids, salt solutions suitable
Anorg. Acids concentrated conditionally suitable
Solvent, otherwise. Organ. Verb. conditionally suitable
Lacques, colors (silicone -free) conditionally suitable

Approvals and Test Reports

TA Luft 2002 (VDI 24A0/2200)

API 622/ASTM F2168/Shell Spec MESC SPE 85-203


Data Sheet
EN | Last Changed 2023-03-06

General information: All information given in this Technical Information sheet represents our current level of knowledge and serves as information on our products and their respective scope. It is not meant to ensure any particular properties of any product or the suitability of any product for any specific application, neither does it create any liability on our part.

Last Changed 2023-03-06 07:31:07

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