34
Solenoid driven metering pumps are widely used to dose chemical fluids and it is important that the
most suitable material in contact with fluid is selected for each application. This compatibility table serves
as a useful help in this respect. All the informations in this list are verified periodically and believed to
be correct on the date of issuance. All the informations in this list are based on manufacturer’s data
and its own experience but since the resistance of any material depends by several factors this list is
supplied only as an initial guide, in no way manufacturer makes warranties of any matter respect to
the informations provided in this list.
Tab. 8.
Chemical compatibility table.
Polyvinyldene fluoride (PVDF) .................Pump heads, Valves, Fittings
Polypropylene (PP) ..................................Pump heads, Valves, Fittings
PVC .......................................................Pump heads
Stainless steel (SS 316) ...........................Pump heads, Valves
Polymethyl Metacrilate Acrylic (PMMA) ...Pump heads
Polytetrafluoroethylene (PTFE) ................Diaphragm
Fluorocarbon (FPM) ................................O-ring
Ethylene propylene (EPDM) .....................O-ring
Nitrile (NBR) ...........................................O-ring
Chemical
compatibility
table
Materials
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
Hydrochloric Acid, Concentrate
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 Bisulphite
NaHSO3
1
1
1
1
2
1
1
1
1
1
1
1
Sodium Carbonate (Soda)
Na2CO3
2
3
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 (Slaked Lime)
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 Hypochlor.(Chlor.ted Lime)
1
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% (Perydrol)
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-II-Sulphate (Roman Vitriol)
CuSO4
1
1
1
1
1
1
1
1
1
1
1
1
1
Calcium Hypochlor.(Chlor.ted Lime):
WQA test was based on 1% Calcium Hypochlorite solution.