VICI M50 - Model M50

19
Model M50
Valcon H2
TheM50capisacarbonber-reinforced,PTFE-lubricatedinertpolymer.
Thismaterialisroutinelyusedat5000psiattemperaturesnotmorethan
75°C.
Ceramic
TheM50pumprotorismadeofceramic(ZrO
2
), which is resistant to most
chemicals.
PTFE
ThepistontipsaremadefromPTFE.Polytetrauoroethyleneisthegeneric
name for the class of materials such as Teflon
®
. It offers superior chemical
resistanceandlendsitselftogoodsealingcharacteristics.Becauseit’sso
easytohandle,itisoftenusedinlowpressuresituationssuchastheM50
pump.CompoundsoflowmolecularweightcanpermeatePTFE.
Guidelines
Specific reagent combinations should be tested to insure compatibility with
pump components. Since the least chemically inert component in these
compositesisPEEK,foroptimumcomponentlifetimethefollowingguide-
lines*(forPEEKatroomtemperature)shouldbefollowed:
Acids and bases ...................Nostrongerthan1M(exceptionsnotedbelow)
Sulfuric acid .......................... Resistantto10%
Hydrochloric acid .................. Resistantto20%
Hydrofluoric acid ...................Notresistantto40%(nodataonlowerconc.)
Nitric acid ..............................Resistantto10%
 DibutylamineinToluene ........Not rated
Sodium hydroxide .................Resistant
Hydrogen sulfide ...................Resistant
Methyl mercaptan .................Not rated
Acetone ................................Resistant(seeViton
®
note on previous page)
Methyl ethyl ketone ...............Resistant
Methyl alcohol .......................Resistant
Toluene ................................. Resistant
 Xylene ...................................Resistant
Chloroform ............................Resistant
 Chlorobenzene .....................Resistant
 Iodine/iodideinwater ............Not rated
Sodium hypochlorite .............Resistant
(household bleach)
 Permanganate ......................Resistant
Hexane .................................Resistant
* CorrosionResistanceTables,Schweitzer,MarcelDekker,1991