Specification of
Merkel Alchem 6375
Universal chemical valve packing
Merkel Alchem is manufactured from pure PTFE
Yarn with an additional PTFE impregnation, ensuring
excellent chemical resistance. Its high density
and tight braid structure ensure very low leakage
performance. The packing has a high degree of
form stability and a low compressibility which makes
it also suitable for plunger pump applications.
The packing is approved for use in the food processing
industries.
Application
Plunger pumps, valves
Media
All chemicals including concentrated hot acids and
alkalis
Exceptions: molten alkali metals, fluorine and
some fluorine compounds
BAM approved for gaseous oxygen (30 bar up to
60° C)
Valves
p
250 bar
500 bar*
3625 psi
7250 psi*
t -200 ... +280 °C -328 ... +536 °F
v 2 m/s 400 ft/min
pH 0 ... 14 0 ... 14
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