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= EX CELLENT<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 />
METHANE B A B B B A X A A<br />
METHYL ACETATE B A B A A D B D A<br />
METHYL ACETONE A A A A A D A D A<br />
METHYLAMINE B A B A A B A<br />
METHYL CELLOSOLVE B A B A A B A<br />
METHYL CHORIDE B D B B A C D A<br />
METHYL ETHYL KETONE A A A A A D B D A<br />
METHYL FORMATE C C C B B D B A<br />
METHYLENE CHORIDE B A B A A D D C A<br />
MILK D A D A A A A A A<br />
MINE WATERS (ACID) D D D B B A A A<br />
MINERAL OIL B A B A A A D A A<br />
MIXED ACIDS (COLD) C C C B A D A<br />
MOLASSES EDIBLE A A A A A A X A A<br />
MOLASSES CRUDE A A A A A A X A A<br />
MURIATIC ACID D D D D D B A A<br />
MUSTARD B B B A A A X A A<br />
NAPHTHA B A B B B A D A A<br />
NAPHALENE B B A B B D A A<br />
NICKEL AMMONIUM SULFATE D D D A A A B A<br />
NICKEL CHORIDE D D D B B A B A A<br />
NICKEL NITRATE D C D B B A A A A<br />
NICKEL SULFATE D D B B B A B A A<br />
NICOTINIC ACID B A B A A D A<br />
NITRIC ACID (10%) D D D A A C X A A<br />
NITRIC ACID (30%) D D D A A C B A A<br />
NITRIC ACID (80%) D B D A A D D B A<br />
NITRIC ACID (100%) A B A A A D D B A<br />
NITRIC ACID ANHYDROUS A B A A A D A<br />
NITROBENZENE B C B B B D C C A<br />
NITROGEN A A A A A A B A A<br />
NITROUS ACID (10%) D D D B B C X A A<br />
NITROUS GASES C B B A A X A<br />
NITROUS OXIDE C C B B B B X A<br />
OILS AMINAL A A A A A A B A<br />
OILS COTTONSEED C B C B B A A<br />
OILS FISH B B B A A A A<br />
OILS FUEL B A B A A A A A<br />
OILS LUBE A A A A A A A A<br />
OILS MINERAL B A B A A A A A<br />
OILS PETROLEUM (REFINED) B A A A A A D A A<br />
OILS PETROLEUM (SOUR) C A B A A A D A A<br />
OILS WATER MIXTURES B A B A A A X A A<br />
OLEIC ACID B A B A A A D A A<br />
OLEUM D B B B B C D C A<br />
OLIVE OIL B A A A A A B A A<br />
OXALIC ACID D C D B B C B A A<br />
OXYGEN B A B A A C A B A<br />
OZONE C B C A A A A<br />
PALMITIC ACID C B C B B B B A A<br />
PALM OIL C A C B B B D A A<br />
Data subject to change without prior notice<br />
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