Diaphragm Pumps
FDA approved AISI 316L stainless steel body, CIP/SIP compatible design and seamless inner geometry specially manufactured for food, pharmaceutical and cosmetic industries.
About PH Series
Hygienic diaphragm pumps (PH Series) are AODD pumps specially designed for processes requiring food safety and pharmaceutical purity. All body and fluid contact surfaces are manufactured from AISI 316L cast stainless steel; surfaces are smoothed by electropolishing to achieve Ra ≤ 0.8 µm roughness values. This smooth surface is a critical hygiene factor that prevents microbial adhesion and prevents biofilm formation; the PH Series meets this requirement that traditional metal diaphragm pumps cannot provide through its zero dead leg geometry.
The internal geometry of the PH Series is deliberately designed without corners. Corners and recesses that cause fluid accumulation in standard diaphragm pumps are absent in this series; the fluid is completely emptied from the housing during each cycle. This feature allows cleaning and sterilization agents to reach every point of the pump during CIP (Clean-In-Place) and SIP (Sterilize-In-Place) procedures; as a result, downtime is reduced and facility capacity is increased. For operations in the food industry that must simultaneously manage facility capacity and hygiene standards, this balance is a decisive selection criterion.
On the elastomer side, the PH Series supports Santoprene, EPDM, FKM, and PTFE options; all of these have been selected from materials approved under FDA CFR 21. For the transfer of fluids in direct contact with consumable products such as fruit juice, milk, wine, beer, syrup, and sauce, an EPDM or PTFE diaphragm combination is recommended. In pharmaceutical and biotechnology processes, the PH Series with PTFE diaphragm enables the transport of API solutions, gels, creams, and fermentation liquids without the risk of cross-contamination. Pulsation damper compatibility filters out harmful pressure surges that pulsating flow could create on process equipment or packaging machinery.
Technical Specifications
The electropolished 316L surface and seamless internal geometry combination prevent microorganism adhesion and biofilm formation. This design naturally meets HACCP requirements and minimizes additional disinfection obligations.
Thanks to edgeless geometry and smooth surfaces, CIP cleaning solutions and SIP steam circulate inside the pump without leaving any dead spots. Cleaning is verifiable; the risk of recontamination is near zero.
All materials used on fluid contact surfaces are approved under FDA CFR 21. The combination of 316L body, food-compatible elastomers and PTFE diaphragm provides a ready documentation basis in international food safety inspections.
Pulsation dampers that filter the natural pulsating flow of air-operated diaphragm pumps can be seamlessly integrated with the PH Series. Flow smoothness is ensured in filling machines, filtration systems, and precision measurement lines.
The PH Series, with safe operating capability down to -18°C, exceeds temperature limitations in common applications in refrigerated food transfer, frozen product processes, and cold beverage lines.
The PH Series completely empties the pump housing in each working cycle. During transitions between product mixtures or final production cleaning, valuable fluid waste remains near zero; this feature provides critical economic advantage, especially in expensive API and aroma transfer.
Model Comparison
| Model | Connection | Maximum. Debut | Maximum Pressure | Weight | Application |
|---|---|---|---|---|---|
| PH 10 | 1'' | 160 lpm | 7 bar | 12 kg | Medicine, Laboratory |
| PH 15 | 1.5'' | 400 lpm | 7 bar | 26 kg | Food, Beverage, Cosmetics |
| PH 20 | 2'' | 565 lpm | 7 bar | — | Beer, Wine, Milk |
| PH 30 | 3'' | 894 lpm | 7 bar | — | High-Capacity Food Lines |
Product Series
Frequently Asked Questions
