Overview
Tapflo Aseptic series air operated diaphragm pumps are designed for service in pharmaceutic-, biotech- and food industries where a clean process is the key.
Tapflo Aseptic series is EHEDG certified (EL Class I - Closed equipment, wet cleaned-in-place [CIP] without dismantling), has FDA and USP VI approved materials and conforms to the ATEX directive 2014/34/EU.
The EHEDG (European Hygienic Engineering & Design Group) certificate is your guarantee that the design is according to the hygienic guidelines. Every piece of equipment considered for certification is evaluated by one of the EHEDG Authorized Evaluation Officers (AEOs). During the review, certain design features are also measured and verified, e.g. surface roughness and internal radii. After a successful design review pump is tested for cleanability in-place (CIP), meaning that pump is empirically tested to exclude bacteria growth.
Industry | Example of application |
Food & dairy | Soup, cream, syrup, dairy products, flavoring, alcohol, chocolate, paste |
Pharmaceutics & cosmetics | Cream, paste, alcohol and filtration gel |
Features & benefits
No horizontal areas
no bacteria growth
Designed for CIP and SIP cleaning
easy cleaning and draining
Gentle pumping
no damage of sensitive products
Hygienic surfaces
housings made from electro polished stainless steel AISI 316L, Ra 0.8 (standard) or Ra 0.5 on request
Flexible installation
wide range of connection types available: TriClamp, sanitary threads (DIN, SMS) etc
No rotating shaft seals
no leakage
Self priming
flexible installation
Conform with the ATEX directive
safe in explosion hazardous areas
Reliable in service
can run dry and against closed valve without damage

- Standard connection: DIN 32676 Series C (ASME BPE)
- ATEX rated as standard
- Standard internal surface roughness Ra<0.8; on demand Ra<0.5
- No horizontal surfaces
- High clearance valve balls stopper allow large particles to flow through
- Pump rotation 145°
- No metal to metal contact in the wetted area
- Smoothly rounded design feet for easy fixing and cleaning
Material of components
Component | Material |
Housing/manifolds (wetted) | AISI 316L, Ra 0.8 |
Diaphragms (wetted/not wetted) | PTFE (FDA & USP VI) / EPDM back PTFE 1705B (FDA & USP VI) / EPDM back PTFE (FDA & USP VI) / white EPDM back |
Valve balls (wetted) | PTFE (FDA & USP VI) Modified PTFE (FDA & USP VI) AISI 316L |
Sealing (wetted) | EPDM (FDA & USP VI) FKM (FDA & USP VI) FEP/FKM (FDA & USP VI) |