Specification of
Merkel Unival 6323
Universal packing for high speed/high temperature
pumps
Merkel Unival consists of graphite-filled
lubricated PTFE yarn.The special braiding structure
offers the benefits of low thermal expansion and
excellent heat conduction. Due to its low friction
characteristics Merkel Unival can also withstand
dry running up to a certain limit. In addition, its
pliable and dense composition allows Merkel
Unival to seal effectively with a minimum of gland
pressure.
The packing is approved for use in the food processing
industries.
Application
Rotary pumps, valves
Media
Alkalis, solvents, bitumen, almost all acids.
Exceptions: highly concentrated nitric acid, oleum
Valves
p 250 bar 3625 psi
t -100 ... +280 °C -148 ... +536 °F
pH 0 ... 14 0 ... 14
Rotary pumps
p 25 bar 362 psi
t -100 ... +280 °C -148 ... +536 °F
v 20 m/s 3900 ft/min
pH 0 ... 14 0 ... 14
Read More
