Air Operated Diaphragm Pumps

CDR Pumps offers the latest air-operated diaphragm (AOD) pumps through the acquisition of Ashton Pumps. Available in a wide range of materials and sizes, these pumps provide a durable, cost-effective, and easy-to-maintain solution for many applications. ATEX-certified models and hygienic options are available.

The range features newly designed air motors providing up to 30% reduced air consumption, along with a modular air valve design to simplify maintenance and minimise downtime.

Key Features

Can handle abrasive and corrosive materials, and fluids with solids present
Suitable for viscous and self-priming applications
Dead-head capable
ATEX-certified for hazardous areas
Seal-less design, no mechanical seals or pack glands
Lubrication free, non-stall easy-to-access air valve design
Completely pneumatically driven, no need for electric
Wide range of spares interchangeability, keeping downtime & stock holdings to a minimum
Dry running capabilities, without causing long-term damage to the pump
Inherent self-priming design, ideal for emptying barrels, bulk containers, tanks & bunds
Variable flow range, from zero lpm to pump maximum design capacity
Easy to strip, assemble & maintain

Materials of Construction

Non-Metallic Diaphragm Pumps

EPDM, FKM Fluorocarbon, Geolast ®, Nitrile Rubber aka Buna-N, Polychloroprene aka Neoprene, Polyoxymethylene aka Acetal, Polypropylene, PTFE, PVDF, Santoprene, TPE

Metallic Diaphragm Pumps