Air Operated Double Diaphragm Pumps made of Polypropylene (PP) and Polyvinylidene Fluoride (PVDF), Stainless Steel, Aluminium, Cast Iron

 

Air Operated Double Diaphragm Pump (AODD) is double pumps in one, with two chambers filled and emptied by drawing liquid through a common inlet and discharged through a common outlet. The diaphragm in each chamber is connected by a common shaft so that they move backwards and forwards together. Compressed air is directed by the air valve alternatively behind each diaphragm to power discharge strokes. Pump speed and there fore fluid flow rate can be infinitely controlled by increasing or decreasing air pressure and or volume.

 

Standard AODD pumps are 1:1 ratio so that maximum outlet pressure never exceed air supply pressure.

 

Typical range of process liquids where AODD can be used:

 

Abrasives

 

Advantages of AODD pumps:

 

No seal, No leakage,Mo motor,No fire,No rotation,No charging.

Less wear and tear, Self priming, No foot valve needed, Pump can run dry.

Variable flow with the same pump, Stop automatic on closing of discharge valve.

Light weight,handy in use ,can be submerged easily.

Less stock of spare parts. No skilled person needed to operate or repair the pump.

Can also be used as metering pump with accuracy upto 3-5%.

 

In a nutshell it is very simple and versatile pump as a First World Product at Third World Price.

like Clay slip, titanium dioxide; All mineral and organic acids; Cement and Mortar; Cosmetics like Creams, emulsions, detergents; Ceramics like Slip glazes and clay; Mud, grout and lubricants from Drilling Operation; Soft drinks, spirits, beer, wine, milk, Inks and Dyes like printing inks, driers, dyes, sixes and solvents; Liquid and semi solid foods, flavourings; Oils like Petrol, diesel, hydraulic and cutting oils, lube oils , animal and vegetable oils and greases.; Pulps like paper ,wood ; Resins like Natural and synthetics, water and solvent based, monomeric and polymeric plastics; Sludge and waste like sewage, effluents, coal and lime slurry; Solvents like Aromatic and aliphatics, ketones, aldehydes, esters and chlorinated hydrocarbons, de icing fluids; Water of all types; Timber preservatives like creosote, turpentine, copper napthenate; Paint like emulsions, latexes, pigments, solvents, resins, thinners; Phramaceuticals in liquid, creams and compounds form; Plating industry liquids like Aggressive acids,salts, sludge and effluents; Rubber of Natural and Synthetic form.