PNEUMATIC PUMPS FOR CORROSIVE LIQUIDS
PLASTIC DOUBLE-DIAPHRAGM PUMPS
DOUBLE-DIAPHRAGM CHEMICAL PUMPS POWERED BY COMPRESSED AIR. IDEAL FOR: DENSE AND VISCOUS INDUSTRIAL LIQUIDS, ABRASIVE FLUIDS, AGGRESSIVE CHEMICALS, RESINS, PAINTS, ENAMELS, INKS, DYES, FUELS, OILS. MADE OF CORROSION-RESISTANT THERMOPLASTIC (PP, ECTFE, PVDF).
- Corrosion-resistant chemical pumps.
- Plastic construction materials: PP, PVDF, ECTFE.
- Maximum flow rate: 800 l/min.
- Maximum head: 80 m w.c.
- Maximum air pressure: 8 bar.
- Powered by non-lubricated compressed air.
- Suitable for dry running.
- ATEX Zone 2 certification: standard for all models.
TECHNICAL INFORMATION
| Q max l/min | Connections | Ø max solids | Max viscosity | Negative suction head | Link | ||||
|---|---|---|---|---|---|---|---|---|---|
| Liquid | Air | ||||||||
| BX5 | 6 | G1/4 f | G1/8 f | - | 800 cps | 3 m max |  |
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| BX7 | 9 | G1/4 f | G1/8 f | 0.5 mm | 8.000 cps | 4 m max | |
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| BX13 | 16 | G3/8 f | G3/8 f | 0.5 mm | 10.000 cps | 3 m max | |
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| BX15 | 17 | G3/8 f | G3/8 f | 0.5 mm | 15.000 cps | 4 m max | |
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| BX30 | 35 | G1/2 f | G1/4 f | 2 mm | 20.000 cps | 4 m max | |
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| BX50 | 60 | G1/2 f | G3/8 f | 4 mm | 20.000 cps | 4 m max | |
BX81 | 110 | G1 f | G3/8 f | 4 mm | 25.000 cps | 4 m max | |
| BX100 | 160 | G1 f | G3/8 f | 4 mm | 30.000 cps | 4 m max | |
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| BX150 | 220 | G1 1/4 f | G1/2 f | 5 mm | 40.000 cps | 4 m max | |
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| BX251 | 340 | G1 1/2 f | G1/2 f | 6 mm | 50.000 cps | 4 m max | |
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| BX522 | 600 | G2 f | G1/2 f | 8 mm | 50.000 cps | 5 m max | |
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| BX503 | 800 | G3 f | G3/4 f | 10 mm | 50.000 cps | 4 m max | |
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BX series pumps are powered by a maximum air pressure of 8 bar. Performances refer to tests with cold, clean water with a density of 1000 kg/m3 (ISO9906) and to pumps with immersed suction and free delivery outlet.
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STRENGTHS
VOLUMETRIC PUMPS
The BX AODD pump is a volumetric pump with pulsating flow rate. Two pairs of diaphragms inside them generate compression and depression: in this way the pump simultaneously creates vacuum (suction) and pressure (pumping).
THE ACCESSORIES
Three different delivery/suction positions. Possibility of split manifolds (two suctions and two deliveries). Optional features: automatic pulsation dampers, air adjustment kit, coupling flanges.
DIAPHRAGMS AND BALLS
Pump materials: anti-acid plastic (PP, PVDF, ECTFE). Diaphragm materials: plastic (HYTREL, SANTOPRENE), rubber (NBR, EPDM), PTFE. Ball materials: PTFE, AISI 316, EPDM, NBR.
ATEX COMPLIANT
Standard material for all models: non-conductive thermoplastic (ATEX Zone 2 version). Special series by request: conductive plastic material filled with carbon fibre (ATEX Zone 1 version).
STRENGTHS
VOLUMETRIC PUMPS
The BX AODD pump is a volumetric pump with pulsating flow rate. Two pairs of diaphragms inside them generate compression and depression: in this way the pump simultaneously creates vacuum (suction) and pressure (pumping).
THE ACCESSORIES
Three different delivery/suction positions. Possibility of split manifolds (two suctions and two deliveries). Optional features: automatic pulsation dampers, air adjustment kit, coupling flanges.
DIAPHRAGMS AND BALLS
Pump materials: anti-acid plastic (PP, PVDF, ECTFE). Diaphragm materials: plastic (HYTREL, SANTOPRENE), rubber (NBR, EPDM), PTFE. Ball materials: PTFE, AISI 316, EPDM, NBR.
ATEX COMPLIANT
Standard material for all models: non-conductive thermoplastic (ATEX Zone 2 version). Special series by request: conductive plastic material filled with carbon fibre (ATEX Zone 1 version).
CHEMICALLY RESISTANT DIAPHRAGMS
There are two pairs of diaphragms inside the BX Air-Operated Double Diaphragm pumps (AODD pumps) and these are the elements subject to the greatest stress during suction and pumping (both at chemical and mechanical level). The diaphragms are designed to redistribute the load, minimising the yielding of the material. The possible anti-acid and wear-resistant configurations are: plastic (Hytrel, Santoprene), rubber (NBR, EPDM) or PTFE.
THERMOPLASTIC MATERIALS
PP (POLYPROPYLENE)
The most widely used thermoplastic polymer for the construction of corrosion-resistant pneumatic pumps. It offers good resistance to most acid and alkaline solutions and can be used, depending on the concentration of the aggressive liquids, at temperatures of approximately 65-70°C max.
PVC (POLYVINYL CHLORIDE)
Fluorinated thermoplastic with exceptional resistance to corrosion and temperature. PVDF covers a wide range of uses but is ideal for highly concentrated acids. It is not suitable for certain inorganic bases, such as caustic soda. Operating temperature: max. 100°C
TYPICAL APPLICATIONS
- Chemical and petrochemical systems
- Pumping solvents, oils, lubricants
- Handling fuels
- Emptying cisterns and tanks
- Treatment of dense or abrasive fluids
- Assembly in painting lines
- Transferring solutions for printed circuit boards
- Use on service platforms
- Pumping slurries, pastes, resins
- Seawater treatment
- Electroplating baths, pickling, galvanisation
- Feeding rotary machines
- Handling inks
- Loading and unloading chemicals
TYPICAL APPLICATIONS
- Chemical and petrochemical systems
- Pumping solvents, oils, lubricants
- Handling fuels
- Emptying cisterns and tanks
- Treatment of dense or abrasive fluids
- Assembly in painting lines
- Transferring solutions for printed circuit boards
- Use on service platforms
- Pumping slurries, pastes, resins
- Seawater treatment
- Electroplating baths, pickling, galvanisation
- Feeding rotary machines
- Handling inks
- Loading and unloading chemicals
AODD PUMPS: OTHER FEATURES
BX membrane pumps are perfect for some extreme applications involving the handling and dosing of industrial liquids and corrosive chemicals. They are designed to work even with high viscosities and suspended solids. Moreover, use in very humid or explosive environments, the self-priming capability from high suction heights, the possibility to fine tune the speed and for dry pumping means that these pumps have unprecedented levels of versatility. Their pneumatic motor is self-lubricating: it must be fed by oil-free, filtered, dried, non-lubricated air. The pressure of the air supply must be between 2 and 8 bar. Unfortunately, a certain amount of noise and a pulsating flow rate are almost unavoidable characteristics: but when there is no alternative, these AODD pumps do their job very well.
KEY CORROSIVE LIQUIDS
- Nitric acid
- Muriatic acid
- Citric acid
- Brine
- Ammonia
- Caustic potash
- Chemical fertilisers
- Fertilisers
- Glycerine, glycol
- Fuels and biodiesel
- Solvents of various kinds
- Seawater
- Sulphuric acid
- Caustic soda
- Hydrochloric acid
- Sodium hydroxide
- Chromic acid
- Sodium hypochlorite
- Hydrofluoric acid
- Ferric chloride
- Aluminium polychloride
- Phosphoric acid
- Acetic acid
- Flocculants, polyelectrolytes
- Urea and AdBlue
- Sanitising gels
- Inks, dyes, paints
- Vegetable and industrial oils
- Cosmetic liquids
- Industrial detergents
- Distilled water
- Demineralised water
- Hydrogen peroxide
- And your liquid, of course!
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