Double Diaphragm Pumps are designed for use in applications requiring large volume transfer in a short time 
Driven by compressed air, these can transfer contaminated media & are very useful for cleaning out pits with mixed liquids such as oil, water etc. 
Handle a wide variety of fluids with solid content: as there are no close fitting or rotating parts 
Self priming: pump is designed for high suction lift even at dry start up & also with heavier fluids 
Ability to run dry: as there are no close fitting or sliding parts 
Portable / simple installation: Simply connect air supply line & liquid line; pump is ready to perform 
Explosion proof: safe pumps since they are operated by compressed air 
Pumping efficiency remains constant: no rotors, gears or pistons that wear over time, hence no decline in performance 
All pump models are designed for use with an inlet air pressure of 20-100 PSI 
Air inlet threaded 1/4" NPT (F) 
Standard off the shelf pumps are available in a choice of 2 materials: 
(i) Aluminium body with a Hytrel* diaphragm. These can be used for all high temperature applications
(ii) Polypropylene - body with
(a) Santoprene Diaphragm - for use with abrasives, acids, caustic etc. (b) Teflon (PTFE) Diaphragm - for use with fluids such as solvents 

Double Diaphragm Pumps are designed for use in applications requiring large volume transfer in a short time 
Driven by compressed air, these can transfer contaminated media & are very useful for cleaning out pits with mixed liquids such as oil, water etc. 
Handle a wide variety of fluids with solid content: as there are no close fitting or rotating parts 
Self priming: pump is designed for high suction lift even at dry start up & also with heavier fluids 
Ability to run dry: as there are no close fitting or sliding parts 
Portable / simple installation: Simply connect air supply line & liquid line; pump is ready to perform 
Explosion proof: safe pumps since they are operated by compressed air 
Pumping efficiency remains constant: no rotors, gears or pistons that wear over time, hence no decline in performance 
All pump models are designed for use with an inlet air pressure of 20-100 PSI 
Air inlet threaded 1/4" NPT (F) 
Standard off the shelf pumps are available in a choice of 2 materials: 
(i) Aluminium body with a Hytrel* diaphragm. These can be used for all high temperature applications
(ii) Polypropylene - body with
(a) Santoprene Diaphragm - for use with abrasives, acids, caustic etc. (b) Teflon (PTFE) Diaphragm - for use with fluids such as solvents