Untitled - COMEVAL
Untitled - COMEVAL
Untitled - COMEVAL
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Unival® BUTTERFLY VALVES<br />
Mateial Selection Guidance<br />
Data Sheets Manual<br />
The below chart is intended to provide the end user and valve selection staff with a useful guide to material compatibility.<br />
No contractual responsibility is accepted by our company as result of wrong use of this list of compounds and materials.<br />
It has to be born in mind that the process may change behavior depending on other parameters such as pressure,<br />
temperature, concentration, fl uid velocity…etc. The Valve materials are wide in their specification, i.e: Iron foundry refers<br />
to Cast Iron A126 or other grades, Ductile Iron and other Iron alloys. Carbon Steel applies to A216 WCB however other<br />
cast steel alloys such as LCB, WCC have to be interpolated between this cast steel and the superior Stainless Steel. Other<br />
materials and elastomeric compounds not covered in this table can be advised by our technical team.<br />
SELECTION CODE:<br />
A= EXCELLENT<br />
B= IT MAY BE USED<br />
C= USE WITH CAUTION<br />
D= NO,DO NOT USE<br />
IRON<br />
FOUNDRY<br />
ALUMINIUM<br />
356<br />
MATERIALS<br />
CARBON<br />
STEEL<br />
STAINLESS<br />
STEEL<br />
303<br />
STAINLESS<br />
STEEL<br />
316<br />
SEAT ELASTOMER<br />
BUNA N EPDM / EPR VITON TEFLÓN<br />
BORAX LIQUORS C C C B B A A A A<br />
BORIC ACID D B D B B A B A A<br />
BRINES C B C B B A A A A<br />
BUTADIENE B A D A A C C A A<br />
BUTANE B A B A A A D A A<br />
CALCIUM BISULFITE D C D C B A D A A<br />
CALCIUM CARBONATE D C D B B A B A A<br />
CALCIUM CHLORIDE C C C C B A B A A<br />
CARBOLIC ACID D A D B B D B B A<br />
CARBON TETRACHLORIDE B B B A A D D B A<br />
CASTOR OIL B A B A A A B A A<br />
CHLOROFORM (DRY) B D B A D D D B A<br />
CHROME ALUM B C B A A A B B A<br />
COCONUT OIL C B C B B A A A A<br />
COPPER ACETATE D C D A A B A<br />
COPPER CHLORIDE D C D C C A X A A<br />
COPPER NITRATE D C D B B A B A A<br />
CRUDE OIL SWEET B A B A A A X A A<br />
CRUDE OIL SOURT C A B A A A D A A<br />
CYCLOHEXANE A A A A A C D A A<br />
DIACTONE ALCOHOL A A A A A D X A<br />
DIESEL FUELS A A A A A A D A A<br />
DRILLING MUD B B B A A A A A A<br />
DRYING OIL B B B A A C X A A<br />
EPSOM SALT C A C B B A X A A<br />
ETHANE A A A A A A D A A<br />
ETHER B A A A A C C C<br />
ETHYL ACETATE C A B B B D C D A<br />
ETHYL CHLORIDE B B B A A C B A<br />
ETHYLENE CLYCOL B A B B B A A A A<br />
ETHYLENE OXIDE C A B B B D D D A<br />
FERRIC NITRATE D D D C C A A A A<br />
FERRIC SULFATE D D D B B A A A A<br />
FERROUS CHLORIDE D D D D D A A A A<br />
FERROUS SULFATE D D D B B A A A A<br />
FISH OILS B B B A A A D A A<br />
FLOURINE D D D D D X C<br />
FOOD FLUID AND PASTES C A C A A B X A<br />
FORMALDEHYDE (COLD) B A A A A B B A<br />
FORMALDEHYDE (HOT) D B D C C B X A<br />
FORMIC ACID (COLD) D D D C B D X A<br />
FORMIC ACID (HOT) D D D C B D X A<br />
FREON B B B A A C C C A<br />
FUEL OIL B A B A A A D A A<br />
GALLIC ACID D A D B B A C A<br />
GAS NATURAL B B B A A A D A A<br />
GAS ODDORIZERS B A B B B B X A A<br />
GASOLINE (LEADED) B A A A A C X A A<br />
GASOLINE (UNLEADED) B A A A A C X A A<br />
GASOLINE (AVIATION) B A A A A C X A A<br />
GASOLINE (MOTOR) B A A A A C D A A<br />
GASOLINE (SOUR) B A B A A C D A A<br />
Data subject to change without prior notice<br />
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