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AODD (Air-Operated Double Diaphragm) Pumps
Blagdon’s core pump range is built around AODD technology — designed for a wide variety of fluids and operating conditions.

Key features include:

• Wide range of sizes — from small ¼" pumps up to 3" units, to suit different flow and capacity requirements.
• Multiple construction materials available: metallic (aluminium, cast iron, stainless steel), non-metallic (polypropylene / PVDF), and PTFE — giving flexibility depending on fluid compatibility, corrosion / chemical resistance, or hygiene needs.
• Ability to handle difficult and challenging fluids — from thin liquids to viscous, abrasive or particulate-laden media, slurries, resins, chemicals — even under low-pressure or variable-flow conditions.
• Pumps are capable of self-priming and are often chosen where standard centrifugal pumps lack reliability — especially helpful for sludge, slurries, chemical dosing or abrasive applications.

Blagdon also offers specialised variants tailored to certain applications:

• High-pressure AODD pumps — for duties requiring higher discharge pressures or long pipe-run/ filter-press / long-distance transfer tasks.
• FDA / Hygienic / Sanitary Pumps — for applications that require hygienic construction (such as food, beverage, pharma) with suitable materials and valve/diaphragm configurations.
• Flap-valve and non-metallic body options — to suit chemical, corrosive, or low-cost applications, or where metal pumps may not be ideal.

Blagdon AODD pumps are used across a wide range of sectors thanks to their durability and fluid-handling versatility, including:

• Chemical processing: Transfer of corrosive, abrasive and viscous chemicals.
• Wastewater & sludge handling: Ideal for slurries, solids-laden and abrasive media.
• Food, beverage & pharmaceutical: When hygienic or FDA-compliant materials are required.
• Industrial manufacturing: Handling coatings, paints, resins, adhesives and other process fluids.
• Mining & dewatering: Robust operation in harsh environments and variable flow conditions.

• Specialist AODD expertise & history: decades of experience, starting from the early 1950s with continued development of diaphragm pump technology.
• Wide material & configuration flexibility: metallic and non-metallic options, multiple diaphragm/valve choices, hygienic or chemical-resistant builds — making them adaptable to almost any fluid or environment.
• Reliable under challenging conditions: Handles thin liquids, viscous slurries, abrasive or particulate-laden media — even where other pump types struggle.
• Strong coverage across industries: From chemicals and wastewater to food, pharma, mining, coatings — Blagdon pumps are used in many demanding industrial sectors.
• Low maintenance & robust design: AODD construction with simple bolted assemblies, making maintenance straightforward and downtime minimal.