Pharmaceutical diaphragm pumps
Diaphragm pharmaceutical pumps developed in cooperation with one of the world’s leading suppliers and designed for use in the pharmaceutical and biotechnological industries.
This hygienic pump, made of HDPE, PTFE or PP, has all wetted parts made of USP Class VI certified materials, thus meeting the most demanding purity standards. The Tapflo pharmaceutical pump is quick and easy to maintain, keeping service costs and process downtime to an absolute minimum.
Diaphragm pharmaceutical pumps are manufactured from special clinically tested materials, in accordance with USP and FDA. They can be used in ATEX explosion hazard zones.
FAST FACTS
FEATURES & BENEFITS
Diaphragm pharmaceutical pumps developed in cooperation with one of the world’s leading suppliers and designed for use in the pharmaceutical and biotechnological industries.
This hygienic pump, made of HDPE, PTFE or PP, has all wetted parts made of USP Class VI certified materials, thus meeting the most demanding purity standards. The Tapflo pharmaceutical pump is quick and easy to maintain, keeping service costs and process downtime to an absolute minimum.
Diaphragm pharmaceutical pumps are manufactured from special clinically tested materials, in accordance with USP and FDA. They can be used in ATEX explosion hazard zones.
| Pump capacity: | 49 m3/h (820 l/min) | |
| Max. discharge pressure: | 8 bar | |
| Max size of solids: | 3-15 mm | |
| Temperature: | 100 °C | |
| Housing materials: | PE, PTFE | |
| Diaphragm materials: | PTFE, PTFE 1705B, EPDM, NBR, FKM | |
| Valve ball materials: | PTFE, EPDM, NBR, AISI 316L steel, PU, Ceramic, FKM | |
| Air distributor materials: | brass, AISI 316L steel or PET | |
| Basic differences in material designs: | ||
| PE HD (polyethylene) | High abrasion resistance, 6-7 times better than polypropylene (PP) – this allows the use of such pumps for pumping, e.g., slurries with strong abrasive properties. PE is resistant to most aggressive chemicals, such as concentrated acids and alkalis. The maximum operating temperature is 70 °C. | |
| PTFE (pure polytetrafluoroethylene) | High chemical resistance – pumps made of this material can handle even the most corrosive substances, e.g., concentrated nitric acid. The maximum operating temperature is 100 °C. | |
| Available sizes: | |||
| Model | Max. capacity (l/min) | BSP threaded connections | ![]() |
| T53 | 60 | 3/4″ | |
| T103 | 125 | 1″ | |
| T203 | 330 | 1 1/2″ | |
| T403 | 570 | 2″ | |
| Industry | Application example |
| Chemical | acids, bases, alcohols |
| Food | soups, milk, yogurts, spirits, chocolate, dough, cream, pastes |
| Cosmetic | perfumes, toothpaste |
| Paint and varnish | paints, inks, varnishes, glues, adhesives, solvents |
| Mechanical | oils, greases, coolants, cleaning fluids, sewage |
| Surface treatment | chemicals |
| Water treatment | pumping samples, dosing acids and alkalis |
| Paper | glues, sodium silicates, dyes, titanium oxides |
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1. Installation flexibility The ports can rotate 180°. Simply rotate the port to adjust its position to the installation. Plastic ports with BSP or NPT internal threads are supplied as standard. Other versions, including stainless steel, are available on request. |
| 2. Massive and durable body The pump body is machined from a solid block of PE or PTFE. The massive construction protects against mechanical loads as well as aggressive chemicals. All wetted parts are made of USP Class VI certified materials. |
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| 3. Low air consumption The air supply system has been designed to minimize all air channels. This has eliminated all “dead spaces” and consequently achieved maximum pump efficiency. |
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| 4. Design created for chemicals The multilayer diaphragm has a completely uniform surface (without metal elements) on the medium side. This is an ideal solution for transporting chemicals. |
The Tapflo diaphragm pump is powered by compressed air. Two diaphragms work alternately, pushing liquid into the pumping system. Ball valves act as check valves, directing the liquid in the right direction.
During each cycle, the air pressure behind the discharge diaphragm is equal to the liquid lift height on the medium side. This means that Tapflo diaphragm pumps can operate with a closed discharge valve without negatively impacting diaphragm life.
SUCTION
The retracting diaphragm creates a vacuum, and thus the phenomenon of medium suction.
DISCHARGE
The second diaphragm simultaneously transfers air pressure to the medium in the second diaphragm chamber, pushing it towards the discharge port.
| Long-life diaphragms
Tapflo diaphragms are composite constructions, ideal for working in harsh conditions, providing a completely uniform surface in contact with the medium. This helps prevent leaks through the diaphragm and keeps it clean. Diaphragms are available in various materials and colors to suit all needs. Available material versions: PTFE, PTFE 1705B, EPDM, NBR, FKM. ![]() The advanced manufacturing, curing, trimming, and finishing process ensures a long service life for the composite diaphragm, which will last for many millions of strokes. The component materials are specially made and adapted to the composite diaphragm technology and the molding process with pressing. |
(1) PTFE TFM layer (2) front layer (3) core (metal) (4) fabric (5) back layer |
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Economical power supply – air distributors
The air distributor, which redirects compressed air to the chambers behind the diaphragms, is the heart of the pump. The distributor is located in the center of the pump between the diaphragms to minimize the air path and dead spots. This design is key to reliable and economical operation. Thanks to a special sealing system, the distributor does not require lubrication. This not only saves money but also protects the environment. Available material versions: brass, PET and AISI 316L stainless steel. |
| Ball check valves
Tapflo pumps are equipped with four check valves to ensure that the liquid is pumped in the right direction. Available material versions: PTFE, EPDM, NBR, AISI 316L steel, PU, Ceramic, FKM. |
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| Pump capacity: | 49 m3/h (820 l/min) | |
| Max. discharge pressure: | 8 bar | |
| Max size of solids: | 3-15 mm | |
| Temperature: | 100 °C | |
| Housing materials: | PE, PTFE | |
| Diaphragm materials: | PTFE, PTFE 1705B, EPDM, NBR, FKM | |
| Valve ball materials: | PTFE, EPDM, NBR, AISI 316L steel, PU, Ceramic, FKM | |
| Air distributor materials: | brass, AISI 316L steel or PET | |
| Basic differences in material designs: | ||
| PE HD (polyethylene) | High abrasion resistance, 6-7 times better than polypropylene (PP) – this allows the use of such pumps for pumping, e.g., slurries with strong abrasive properties. PE is resistant to most aggressive chemicals, such as concentrated acids and alkalis. The maximum operating temperature is 70 °C. | |
| PTFE (pure polytetrafluoroethylene) | High chemical resistance – pumps made of this material can handle even the most corrosive substances, e.g., concentrated nitric acid. The maximum operating temperature is 100 °C. | |
| Available sizes: | |||
| Model | Max. capacity (l/min) | BSP threaded connections | ![]() |
| T53 | 60 | 3/4″ | |
| T103 | 125 | 1″ | |
| T203 | 330 | 1 1/2″ | |
| T403 | 570 | 2″ | |