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.

Article Number

1376

Material

1376

Profile

PR

Description

Operating Data

Temperature (min)
-269 °C
Temperature (max)
550 °C
Density approx. (g/cm³)
1.75 g/cm³
Material structure
Graphitfolie, Inconel
Waterproofing
PTFE

Fields of Application

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

Applications

abrasive and sticky media
not suitable
Water, Process water, Lake water
suitable
Hot water, boiler dining water
suitable
Vapors, 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
Inorganic acids diluted, salt solutions
suitable
Inorganic acids concentrated
limited suitability
Solvents, other organic compounds
limited suitability
Lacques, colors (silicone -free)
limited suitability

Approvals & Test Reports

TA Luft 2002 (VDI 24A0/2200)
API 622/ASTM F2168/Shell Spec MESC SPE 85-203
(TA-Luft test was performed without disc suspension at 200°C [1,000 spindle strokes] and additionally 300°C [2,000 spindle strokes], at a test pressure of 40bar).

Forms of delivery

Compression-moulded packing ring or packing set
Dimensions on request