Sanitary & Hygienic AODD Pumps
**Sanitary / hygienic air‑operated double diaphragm (AODD) pumps** move viscous, shear‑sensitive, and particulate‑laden fluids while meeting **3‑A, FDA, and often USP Class VI** requirements. We stock and engineer **Wilden, Yamada, ARO, and Graco** sanitary AODD pumps in **polished 316L stainless steel** with **tri‑clamp connections**, **clean‑in‑place (CIP) / steam‑in‑place (SIP) options**, and **food‑grade diaphragms, balls, and seats**.
Not sure if you need **3‑A vs. FDA**, what **surface finish (Ra μin)** is required, or which **elastomer** survives your CIP chemistry? Talk to a sanitary pump engineer—most quotes leave our inbox within one business hour.
Quick Selector: Sanitary AODD Families
| Brand / Series (Representative) | Port Size | Typical Max Flow | Certifications | Surface Finish | CIP / SIP | Notes |
|---|---|---|---|---|---|---|
| Wilden Saniflo / Hygienic Series | 1/2″–3″ | Up to ~300 GPM | 3‑A (select), FDA, EU 1935/2004 | Ra ≤ 32 μin (≤ 0.8 μm) typical | Yes (series‑dependent) | Industry staple; broad elastomer choices |
| Yamada Sanitary Series | 1/2″–3″ | Up to ~214 GPM | 3‑A (select), FDA | Polished 316L | Yes (series‑dependent) | Tool‑less clamp designs for fast teardown |
| ARO Sanitary (EXP / SD Series) | 1/2″–3″ | Up to ~279 GPM | FDA, 3‑A (select) | Polished 316L | Yes (series‑dependent) | Digital batch controls & 4–20 mA options |
| Graco (Saniforce) | 1/2″–3″ | Up to ~300 GPM | FDA, 3‑A (select) | Polished 316L | Yes (series‑dependent) | Great for high‑viscosity food, cosmetics |
Specs vary by exact model/series. We’ll confirm against your flow, viscosity, temperature, and regulatory requirements.
Why (and When) Sanitary AODD Pumps Win
- Gentle, low shear transfer for creams, slurries, and particulates
- Run‑dry & dead‑head capable for batching and tote unloading
- Polished 316L, tri‑clamp, clean internal geometries
- CIP/SIP capable with FDA/3‑A compliant elastomers
- Portable, air‑powered (no motor/VFD needed)
How We Specify Sanitary AODD Pumps (So QA & Production Both Win)
1) Regulatory & Surface Finish
We align with **3‑A, FDA, USP Class VI, EU 1935/2004** and your **target Ra**. We’ll confirm **elastomer certificates, migration docs, and metal certs (MTRs)** as needed.
2) Viscosity, Solids & Shear Sensitivity
We correct performance for **high viscosity** and choose ball/seat styles that pass particulates without damage. For shear‑sensitive products, we keep velocities & air pressure in check.
3) Elastomers & Wetted Materials
**PTFE, EPDM, FKM, TPE, Santoprene®**—each has different CIP/SIP, chemical, and flex‑life characteristics. We’ll match to your **SDS, temp, and cleaning cycle**.
4) Air Supply & Control
We size the **compressed air line 1:1 with the pump inlet** and spec **filter‑regulators, stroke counters, batch controllers**, and **pulse/4‑20 mA** options for repeatable dosing.
Brand / Series Snapshot (Edit to Your Exact SKUs)
| Brand | Key Hygienic Features | Common Elastomers | Cleanability | Ideal For |
|---|---|---|---|---|
| Wilden | 3‑A/FDA options, tri‑clamp, polished 316L, CIP/SIP | PTFE, EPDM, Wil‑Flex® | Tool‑less clamp teardown; drainable designs | Food, dairy, beverage, personal care |
| Yamada | Sanitary clamps, polish, FDA/3‑A options | PTFE, EPDM, NBR (food‑grade) | Fast disassembly & reassembly | Sauces, syrups, cosmetic creams |
| ARO | Polished 316L, 3‑A/FDA options, EXP controls | PTFE, EPDM, Santoprene® (food grade) | Cleanable flow paths, batch control options | Batching & dosing in sanitary lines |
| Graco (Saniforce) | High‑viscosity handling, sanitary clamps, FDA/3‑A | PTFE, EPDM, others | CIP‑friendly; easy strip down | Viscous foods, cosmetics, nutraceuticals |
Typical Sanitary / Hygienic Applications
- Food & Beverage – syrups, sauces, dairy, chocolate, purees, CIP chemicals
- Breweries & Distilleries – wort, yeast, flavorings, sanitizers
- Cosmetics & Personal Care – creams, lotions, gels, pastes
- Biotech / Pharma (non‑shedding, USP VI elastomers on request)
- Nutraceuticals – suspensions, concentrates, viscous blends
Parts, Kits & Accessories
- Food‑grade diaphragms, balls, seats (PTFE, EPDM, TPE, Santoprene®)
- Clamp & gasket kits (FDA/Sanitary EPDM, PTFE‑encapsulated)
- Stroke counters, batch controllers, pulse/4–20 mA modules
- Sanitary pulsation dampeners & surge suppressors
- Hygienic hose assemblies, tri‑clamp fittings, gauges
Send your viscosity, temperature, certifications (3‑A/FDA/USP VI), and CIP/SIP details—quotes usually in < 1 hour.
Sanitary / Hygienic AODD Pump FAQs
What’s the difference between 3‑A and FDA compliance?
**FDA** addresses material safety for food contact. **3‑A** adds **design, finish, and cleanability** requirements (e.g., surface finish, drainability, dead‑leg avoidance) validated by third‑party certification.
Are sanitary AODD pumps CIP/SIP compatible?
Yes—when specified with appropriate **surface finish, elastomers, and seals**. We’ll confirm your **CIP chemistry, temperature, and exposure time** against the elastomer data sheets.
Which elastomer should I choose—PTFE, EPDM, Santoprene®?
**PTFE** offers the broadest chemical resistance but needs a backing elastomer (often EPDM). **EPDM** excels with CIP caustics and steam. **Santoprene®/TPE** offers good flex‑life and FDA compliance for many foods. We’ll match to your SDS & cycle temps.
Can sanitary AODD pumps handle high viscosity?
Yes. We apply **viscosity correction factors**, size air supply correctly, and may oversize the pump to maintain target flow. For extremely high viscosities, we may compare **lobe or progressive cavity** alternatives.
How fast can you ship?
Many common hygienic configurations ship **same day** from **CA, WA, or AZ**. Special elastomers, finishes, or 3‑A certifications typically add a few business days.