Emec VMS MF Series - Chemical Compatibility Table; Pump Construction Materials

49
Chemical
compatibility
table
Dosing pumps are widely used for dosing chemical products.
Select the most suitable material for the liquid to be dosed in the CHEMICAL
COMPATIBILITY TABLE. The information in the table is checked periodically and
believed to be correct at the date of publication. The data contained in the
table are based on information provided by the manufacturers and their
experience, but as the resistance of materials depends on many factors; this
table is provided as an initial guide only. The manufacturer accepts no
responsibility for the contents of the table.
Table 11. Chemical compatibility table.
Product
Formula
Ceram.
PVDF
PP
PVC
SS
316
PMMA
Hastel.
PTFE
FPM
EPDM
NBR
PE
Acetic Acid, Max 75%
CH3COOH
2
1
1
1
1
3
1
1
3
1
3
1
Concentrated
hydrochloric acid
HCl
1
1
1
1
3
1
1
1
1
3
3
1
Hydrofluoric acid 40%
H2F2
3
1
3
2
3
3
2
1
1
3
3
1
Phosphoric acid, 50%
H3PO4
1
1
1
1
2
1
1
1
1
1
3
1
Nitric acid, 65%
HNO3
1
1
2
3
2
3
1
1
1
3
3
2
Sulphuric acid 85%
H2SO4
1
1
1
1
2
3
1
1
1
3
3
1
Sulphuric acid 98.5%
H2SO4
1
1
3
3
3
3
1
1
1
3
3
3
Amines
R-NH2
1
2
1
3
1
-
1
1
3
3
1
1
Sodium bisulphate
NaHSO3
1
1
1
1
2
1
1
1
1
1
1
1
Sodium carbonate (Soda)
Na2CO3
2
1
1
1
1
1
1
1
2
1
1
1
Ferric chloride
FeCl3
1
1
1
1
3
1
1
1
1
1
1
1
Calcium hydroxide
Ca(OH)2
1
1
1
1
1
1
1
1
1
1
1
1
Sodium hydroxide
(Caustic soda)
NaOH
2
3
1
1
1
1
1
1
2
1
2
1
Calcium hypochlorite
Ca(OCl)2
1
1
1
1
3
1
1
1
1
1
3
1
Sodium hypochlorite,
12.5%
NaOCl
+ NaCl
1
1
2
1
3
1
1
1
1
1
2
3
Potassium
permanganate 10%
KMnO4
1
1
1
1
1
1
1
1
1
1
3
1
Hydrogen peroxide, 30%
H2O2
1
1
1
1
1
3
1
1
1
3
3
1
Aluminium sulphate
Al2(SO4)3
1
1
1
1
1
1
1
1
1
1
1
1
Copper sulphate
CuSO4
1
1
1
1
1
1
1
1
1
1
1
1
1 - Component with very good resistance
2 - Component with moderate resistance
3- Component with no resistance
Pump
manufacturing
materials
Polyvinyldene fluoride (PVDF) .............. Pump bodies, valves, fittings, hoses
Polypropylene (PP) ........................... Pump bodies, valves, fittings, floater
PVC ............................................. Pump bodies
Stainless steel (SS 316) ...................... Pump bodies, valves
Polymethyl Metacrilate Acrylic (PMMA) ... Pump bodies
Hastelloy C-276 (Hastelloy) ................. Injection valve spring
Polytetrafluoroethylene (PTFE) ............ Diaphragm
Fluorocarbon (FPM) .......................... Seals
Ethylene propylene (EPDM) ................. Seals
Nitrile (NBR) ................................... Seals
Polyethylene (PE) ............................ Hoses