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Argal Air Operated Double Diaphragm Pumps

The "ASTRA" range of Air Operated Double Diaphragm pumps are available in a wide range of thermoplastic and metal and pump sizes
 
Design
The "ASTRA" range of pumps was conceived by Argal engineers with specific experience in the design and specification of AODD pumps.  The ethos of the design is based around an improved air distributor system, with optimised geometries for diaphragms,  air and liquid chambers and aims to broaden the traditional range of application of these pumps from simple transfer to transfer and metering. This ability is achieved by implementing conventional and innovative solutions.
 
Performance
"ASTRA" AODD pumps with sizes from ½” to 2” offer increased flow compared to other AODD pumps of the same size. This translates in an economical advantage as a smaller and less expensive pump now delivers equal performances to larger conventional pumps, or, offer a technical advantage foin so much as the same pump size delivers same performances at fewer strokes per minute with consequentially reduced mechanical stress and wear of all parts. For these reasons the user enjoys longer operational life, lower Life Cycle Cost, less vibration and attenuated noise compared to conventional pumps.
 
 
Optional features
All "ASTRA" pumps can be arranged to ;
*   Operate at extra low pressure with diaphragms’ actuation circuit independent from pilot command circuit;
*   Detect the number of pumping cycles by normalised probe.
*   Supply pneumatic signals in response to the end of run positions reached by the diaphragms;.
*  Operate as pumps submerged in the liquid being pumped ( optional configuration ).
 
Auxiliary connections to implement the a.m. optional features and modes of use are lodged in the technical panel placed near the air exaust.
 
 
Customised layout for Product connections
Product connections of "Astra" pumps can be configured in several different ways;

*   In the standard scheme, the pump has one manifold with horizontal end inlet and one manifold with horizontal end
    outlet
*   The optional schemes include one manifold with horizontal central inlet and one manifold with horizontal central
     outlet, or a combination of the two types.
 
Drum pump version
This is a special version fitted with optional suction pipe up to 2 metres long, made of same wetted materials as the pump and features self priming for non viscous and viscous chemicals even in hazardous environments
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Download the "Astra" Catalogue