Air-Operated Double-Diaphragm Pumps

Hygenitec™ AODD Pump

Constructed with polished stainless steel 316, these pumps are designed for sanitary process applications where a hygienic design is critical. The pumps are mounted on a swivel stand and can be cleaned in place.

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Key Features
  • Polished 316SS Wetted Components
  • Tri-Clamp ® Intake / Discharge
  • Swivel Mounting Stand
  • Choice of diaphragm

Standard’s Sanitary pumps are the ideal solution for food processing and pharmaceutical applications. The pumps feature SS316 components polished to a 32 Ra finish, swivel mounting stand and an oil-free air valve system. Available in 1½”–3″ sizes.


  • Pie Fillings
  • Juice Concentrates
  • Chocolate
  • Purees
  • Salad Dressing
  • Condiments
  • Sauces
  • Flavorings


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

Models / Series

SPHS15SSP (1 1/2″)
PTFE Diaphragms

SPHS15SSS (1 1/2″)
Santoprene Diaphragms

SPHS15SST (1 1/2″)
Overmolded PTFE Diaphragms

SPHS20SSP (2″)
PTFE Diaphragms

SPHS20SSS (2″)
Santoprene Diaphragms

SPHS20SST (2″)
Overmolded PTFE Diaphragms

SPHS30SSP (3″)
PTFE Diaphragms

SPHS30SSS (3″)
Santoprene Diaphragms

Pumping of flammable or combustible liquids can generate a static electric discharge, causing fire or explosion resulting in injury or death. Read and understand operating instructions before starting this unit. Follow all federal, state and local safety codes including NFPA 30 - NFPA77. Prior to connecting to air supply, install bond and ground wires and check continuity of each wire. A meter reading of one ohm or less is required for safe liquid transfer. Use only approved metallic pump tube, explosion proof or air motor, metallic drum and receiving vessel when pumping flammables. Air motors are not recognized under any current Underwriter’s Laboratory listing program. Consult a qualified engineer for suitability for use in a hazardous area or on flammables.

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.

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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.

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

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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.

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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.

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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.

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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.

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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.

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