Air-Operated Double-Diaphragm Pumps

Hygenitec™ 3A AODD Pump

3A certifed pumps feature over-molded diaphragms, a swivel stand and can be cleaned in place (CIP). These pumps are constructed with polished stainless steel and feature an oil-free air valve.

To Get Your Solution Started:
Request A Quote or Call +1‑770‑218‑8900

Key Features
  • Polished 316SS Wetted Components
  • Overmolded EPDM or PTFE Diaphragms
  • Tri-Clamp ® Intake / Discharge
  • Swivel Mounting Stand

Our 3A Sanitary Pumps are fully certified and are specifically designed for the dairy industry. These sanitary pumps are engineered to meet the stringent safety standards set forth by 3A Council and are certified by an independent third party (TPV). Each pump features polished stainless steel components (32 Ra), a swivel mounting stand for CIP capabilities and an energy-efficient, oil-free air valve system. Available in 1½”–3″ sizes.


  • Mayonnaise
  • Yogurt
  • Creams
  • Cottage Cheese
  • Milk
  • Butter


Models / Series

  • SP3A15SSE (1 1/2″)
  • SP3A15SST (1 1/2″)
  • SP3A20SSE (2″)
  • SP3A20SST (2″)
  • SP3A30SSE (3″)
  • SP3A30SSP (3″)

Technical Specifications

Looking to quickly compare the features and benefits of different pump styles, to find the right one for your application? The Unibloc comparison chart is a great place to start.
Hygienic Pump Comparison Chart

Case Studies

View All Case Studies

Bespoke Trolley For An AODD Pump

A major pharmaceutical manufacturer in Dublin, Ireland came to Flotronic Pumps looking for a pumping solution. The application was to decant chemicals safely from 220 litre containers into

Read the Story

Diaphragm Pump For Pharmaceutical Skid

Flotronic provide Air-Operated Double-Diaphragm Pumps to a Pharmaceutical Skid Manufacturer for Clean Chemical Transfer Solutions. A Global Skid Manufacturer required pumps with very specific application requirements to transfer chemicals in a

Read the Story

AODD Pump Solves Problem In Personal Care Industry

A Global Personal Care manufacturer required a Sanitary Double Diaphragm Pump to add a food grade ingredient to its process at a very low flow rate. The problem was that

Read the Story

Pump Flammable Liquids with ATEX Rated Diaphragm Pumps

A prestigious automotive manufacturing plant in the UK required specialist pumps for safely transferring a variety of liquids including but not limited to petrol, diesel and

Read the Story

The Only AODD Able To Handle High Inlet Pressure

International Paint manufacturer with plants in Europe was having problems with standard AODP due to thermal expansion in pipelines outside the factory. Product was being heated up in the pipelines

Read the Story

AODD Pump Transferring Adhesive

When an International Adhesive manufacturer needed to increase their flow of adhesive they turned to their supplier of Air-Operated Double-Diaphragm pumps. For over six years thier "One Nut" fast maintenance AODD

Read the Story

Complementary Products

Bubble Traps

Bubble traps from Hygenitec have an ultra-clean, easy-to-install design that removes air pockets during vital processes. We offer a wide array of sizes and port configurations.

View Product Details


Hygenitec strainers are precision-engineered to pharmaceutical-grade standards and are available in 316L stainless steel or Hastelloy, with in-line cleaning capabilities.

View Product Details


Y-strainers include an in-line system that allows workers to clean the strainer without removing it from the piping, assuring safety while also giving bi-directional flow and 360-degree equipment mounting choices.

View Product Details

Butterfly Valves

Precision machined from solid stock, our butterfly valves accommodate a multitude of applications. A snap to install and maintain, these valves can be tailored with elastomer options and fully actuated versions to meet your individual demands.

View Product Details

Pressure Relief Valves

Our SimpleSet design has made Hygenitec pressure relief valves the premier choice for over 25 years. Our hygienic pressure relief valves are fully adjustable with a multitude of pressure choices, combining versatility with an easy-to-operate design.

View Product Details

In-Line Sight Glasses

Hygenitec in-line sight glasses are designed with a glass tube securely positioned between two flanges, with double-nut tensioning to prevent over-tightening, and an electropolished stainless steel protector around the tube as well as a standard sanitary Tri-Clamp connection.

View Product Details

Check Valves

Check valves from Hygenitec are designed to guarantee effective, positive sealing. Our time-tested design featuring fully machined stainless housing and seamless ports confirms our commitment to sanitary design.

View Product Details

Bulls-Eye Sight Glasses

The two solid glass viewports on opposing sides of our 316L stainless steel Bulls-Eye sight glass enable the flexibility to position the equipment as needed.

View Product Details

Right Menu Icon