CORROSION-RESISTANT PUMPS AND MIXERS

CHEMICAL RESISTANCE TABLE

CHEMICAL COMPATIBILITY OF MATERIALS ACCORDING TO THE CORROSIVE LIQUID PUMPED

Savino Barbera horizontal pumps with no metal parts in contact with the liquid

Purely by way of example, the following chemical compatibility table lists only some of the corrosive liquids that come into most frequent contact with our corrosion-resistant equipment. Remember that particular conditions of use, the simultaneous presence of different chemical agents or other unforeseen environmental factors can significantly alter the chemical resistance of the plastic construction material. So always pay attention to certain chemical-physical properties that may make incompatible some harsh chemicals.

CHEMICAL RESISTANCE TABLE

Fluid Formula
Temp. PP max concentration PVC max concentration PVDF max concentration
Acetic
acid
CH3COOH 20 °C all 80 % all
40 °C 60 % 10 % 60 %
60 °C 10 % - 60 %
90 °C - - -
Aluminum sulphate (sol.) AI2(SO4)3 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Ammonia (sol)
Ammonium hydroxide
NH4OH 20 °C all all 25 %
40 °C all - 3 %
60 °C all - -
90 °C - - -
Brine - 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Calcium chloride (sol.) CaCl2 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - -
Citric
acid
C6H8O7 20 °C 50% 50 % 50 %
40 °C 50 % 50 % 50 %
60 °C 50 % - 50 %
90 °C - - 50%
Copper chloride (sol.) CuCI2 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Copper sulphate (sol.) CuSO4 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Cromic acid H2CrO4 20 °C - 50 % 50 %
40 °C - 50 % 50 %
60 °C - - 50 %
90 °C - - -
Detergents - 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Ethylene glycol C2H6O2 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Ferric chloride (sol.) FeCI3 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Fertilizers Salts (sol.) - 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Formaldehyde
Formic aldehyde

CH2O 20 °C 37 % 37 % 37 %
40 °C 37 % 37 % 37 %
60 °C 37 % - 37 %
90 °C - - 37 %
Glycerin Glycerol C3H8O3 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Hydrochloric acid HCI 20 °C 30 % 36 % 36 %
40 °C 30 % 36 % 36 %
60 °C 5 % - 36 %
90 °C - - 36 %
Hydrofluoric acid HF 20 °C 70 % 10 % 70 %
40 °C - 10 % 70 %
60 °C - - 70 %
90 °C - - 70 %
Hydrogen peroxide
H2O2 20 °C 10 % 10 % 50 %
40 °C 10 % 10 % 30 %
60 °C 10 % - 10 %
90 °C - - -
Nitrates (calcium, ferric, potassium, sodium...) - 20 °C all all all
40 °C all - all
60 °C all - all
90 °C - - all
Nitric acid HNO3 20 °C 20 % 40 % 85 %
40 °C - 40 % 85 %
60 °C - - 70 %
90 °C - - 40 %
Phosphoric acid H3PO4 20 °C 85 % 85 % 85 %
40 °C 85 % 85 % 85 %
60 °C 85 % - 85 %
90 °C - - 85 %
Propylene glycol C3H8O2 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Seawater, salty water - 20 °C tutte all all
40 °C all all all
60 °C all - all
90 °C - - all
Sodium bisulphite (sol.) NaHSO3 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all
Sodium hydroxide (sol.)
Caustic soda (sol)
NaOH 20 °C 50 % 50 % -
40 °C 50 % 50 % -
60 °C 30 % 30 % -
90 °C - - -
Sodium hypochlorite (NaOH-stabilized) NaOCI 20 °C 3 % 12,5 % -
40 °C - 12,5 % -
60 °C - - -
90 °C - - -
Sulfuric acid H2SO4 20 °C 80 % 96 % 98 %
40 °C 80 % 80 % 98 %
60 °C 10 % - 96 %
90 °C - 10 % 90 %
Zinc sulphate (sol.) ZnSO4 20 °C all all all
40 °C all all all
60 °C all - all
90 °C - - all

The choice of construction materials always depends on the liquid properties: concentration, temperature, specific gravity, presence of solids, fluids combination. This chemical resistance chart is for general reference only and provides guidance to an initial selection of thermoplastic equipment, such our pumps and mixers. This information simply describe the suitability of plastic materials for use in contact with various chemicals. The recommendations presented in this table are based on published data, information from raw material suppliers and field experience. Furthermore, this chemical compatibility guide refers to pure and non-regenerated plastic materials and should be considered as a general guide rather than a substitute for contacting Savino Barbera for specific recommendations. Savino Barbera does not unconditionally guarantee that this chart is complete: any special or unusual factors should be taken into consideration. So, it is strongly recommended to consult Savino Barbera when specific applications are being considered. Improper selection or use of thermoplastics described herein can cause personal injury or product damage.

Savino Barbera all non-metallic chemical pumps for corrosive liquids

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