Untitled - COMEVAL

Unival® BUTTERFLY VALVES
Mateial Selection Guidance
Data Sheets Manual
The below chart is intended to provide the end user and valve selection staff with a useful guide to material compatibility.
No contractual responsibility is accepted by our company as result of wrong use of this list of compounds and materials.
It has to be born in mind that the process may change behavior depending on other parameters such as pressure,
temperature, concentration, fl uid velocity…etc. The Valve materials are wide in their specification, i.e: Iron foundry refers
to Cast Iron A126 or other grades, Ductile Iron and other Iron alloys. Carbon Steel applies to A216 WCB however other
cast steel alloys such as LCB, WCC have to be interpolated between this cast steel and the superior Stainless Steel. Other
materials and elastomeric compounds not covered in this table can be advised by our technical team.
SELECTION CODE:
A= EXCELLENT
B= IT MAY BE USED
C= USE WITH CAUTION
D= NO,DO NOT USE
IRON
FOUNDRY
ALUMINIUM
356
MATERIALS
CARBON
STEEL
STAINLESS
STEEL
303
STAINLESS
STEEL
316
SEAT ELASTOMER
BUNA N EPDM / EPR VITON TEFLÓN
PARAFIN B A B A A A D A A
PARAFORMALDEHYDE B B B B B B D A A
PETANE B A B A A A D A A
PERCHLORETHYLENE B A B A A D D A A
PETROLATUM C B C B B A X A A
PHENOL B A B A A D D B A
PHOSPHORIC ACID (10%) COLD D D D B B B B A A
PHOSPHORIC ACID (10%) HOT D D D D D B B A A
PHOSPHORIC ACID (50%) COLD D D D B B B B A A
PHOSPHORIC ACID (50%) HOT D D D D D B B A A
PHOSPHORIC ACID (80%) COLD B D B A A C X A
PHOSPHORIC ACID (80%) HOT C D C A A C X A
PHTHALIC ACID C B C B B C X A A
PHTHALIC ANHYDRIDE C B C B B C X A
PIRIC ACID C B C B B C B A A
PINE OIL B A B A A A D A A
PINEAPPLE JUICE C A C A A A X A A
POTASSIUM BISULFITE D C D B B A B A A
POTASSIUM BROMIDE D C D A A A B A A
POTASSIUM CARBONATE B C B B B A B A A
POTASSIUM CHLORATE B C B B B A B A A
POTASSIUM CHLORIDE B B C C C A A A A
POTASSIUM CYANIDE B D B B B A A A A
POTTASIUM DICHROMATE B A B A A A B A A
POTASSIUM FERRICYANIDE B B B A A A B A A
POTASSIUM FERROCYANIDE B A B A A A X A A
POTASSIUM HYDROXIDE A D A A A A B A
POTASSIUM IODIDE C C C A A A B A A
POTASSIUM NITRATE B A B A A A B A A
POTASSIUM PERMANGANATE B A B A A A B A A
POTASSIUM SULFATE C A B A A A A A A
POTASSIUM SULFITE B B B A A A B A
PRODUCER GAS B B B B B A D A A
PROPANE B A B B B A D A A
PROPYLENE CLYCOL B A B B B A B A A
PYROGALIC ACID B B B B B A X A A
QUENCH OIL B A B A A A X A A
RESSING AND ROSINS C A C A A C X A
ROAD TAR A A A A A B D A A
ROOF PILCH A A A A A B X A A
RP-1 FUEL A A A A A X A A
RUBBER LATEX EMULSIONS B A B A A X A A
RUBBER SONVENT A A A A A D X D A
SALAT OIL C B C B B A B A A
SALIEYLIC ACID D C D A A A B A A
SALT C B C B B A X A A
SEA WATER D C D A A A A A A
SHEALLAC (ORANGE) B A A A A A X A
SILVER NITRTE D D D A A C A A
SEAP SOLUTIONS (STEARATES) A C A A A A A A A
SOSIUM ACETATE B A B A A B B A A
Data subject to change without prior notice
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