Electrically operated diaphragm pumps
Tapflo electrically operated diaphragm pump is an environmentally friendly alternative to the traditional air-operated diaphragm pump. It is designed for gentle pumping of the most aggressive media, including those containing abrasive particles.
This series pump features lower energy consumption compared to an air-operated pump, long diaphragm life and the ability to run dry without damage. The lack of seals and simple design ensures easy maintenance.
To increase versatility, Tapflo electric diaphragm pumps are available in HDPE/PTFE, metal and hygienic versions. Tapflo electric diaphragm pumps are intended for use in the chemical, mechanical, painting and hygienic applications, among others.
FAST FACTS
FEATURES & BENEFITS
Tapflo electrically operated diaphragm pump is an environmentally friendly alternative to the traditional air-operated diaphragm pump. It is designed for gentle pumping of the most aggressive media, including those containing abrasive particles.
This series pump features lower energy consumption compared to an air-operated pump, long diaphragm life and the ability to run dry without damage. The lack of seals and simple design ensures easy maintenance.
To increase versatility, Tapflo electric diaphragm pumps are available in HDPE/PTFE, metal and hygienic versions. Tapflo electric diaphragm pumps are intended for use in the chemical, mechanical, painting and hygienic applications, among others.
| Pump capacity: | 13.2 m3/h (220 l/min) | |
| Max. discharge pressure: | 4 bar | |
| Max size of solids: | plastic and metal version: 4-10 mm hygienic version: 4-15 mm (up to 51 mm in the version with check valves for large solids) |
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| Temperature: | 110 °C | |
| Housing materials: | PE, PTFE, aluminum, PTFE-coated aluminum, AISI 316L stainless steel | |
| Diaphragm materials: | PTFE, PTFE 1705B, EPDM, NBR, FKM, white EPDM, PTFE with white EPDM backing | |
| Valve ball materials: | PTFE, EPDM, NBR, AISI 316L stainless steel, PU, Ceramic, FKM, PTFE TFM 1635, PE1000, SiC | |
| Main 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. | |
| Aluminum and cast iron | For transporting media with a neutral pH, both thick and thin, containing solid particles or having abrasive properties. Pumps made of aluminum and cast iron can be used, for example, in workshops, the dyeing industry, wastewater treatment plants, etc. | |
| PTFE-coated aluminum | Created for the printing industry, where an alternative to more expensive PTFE pumps was needed, but aluminum was not chemically resistant. Pumps for use wherever a medium with slightly acidic or alkaline properties needs to be pumped. | |
| AISI 316L stainless steel | Castings for these pumps are made using the lost wax method, which ensures high surface quality and dimensional accuracy. They are characterized by mechanical strength combined with chemical resistance. AISI 316L steel is resistant to aggressive substances such as nitric acid and sodium hydroxide. | |
| Available sizes: | ||
| Plastic version: | ||
| Model | Max. capacity (l/min) | BSP threaded connections |
| TE50 P | 48 | 1/2″ |
| TE100 P | 110 | 1″ |
| TE200 P | 220 | 1 and 1/2″ |
| TE50 T | 48 | 1/2″ |
| TE100 T | 110 | 1″ |
| TE200 T | 220 | 1 and 1/2″ |
| Metal version: | ||
| TE70 P | 48 | 1/2″ |
| TE120 P | 110 | 1″ |
| TE220 P | 220 | 1 and 1/2″ |
| TE70 A/C | 48 | 1/2″ |
| TE120 A/C | 110 | 1″ |
| TE220 A/C | 220 | 1 and 1/2″ |
| Hygienic version: | ||
| Model | Max. capacity (l/min) | Tri-clamp connections |
| TE80 | 48 | DN 25 SMS 3017 tri-clamp |
| TE125 | 110 | DN 38 SMS 3017 tri |
The Tapflo electric diaphragm pump is driven by a gearmotor. In this type of pump, there is a need to convert rotary motion into reciprocating motion. This is achieved by using an eccentric shaft with a cam and piston. The rotary motion of the shaft (red part) is transferred to the reciprocating motion of the diaphragm shaft (yellow part).
SUCTION (chamber 1)
The first diaphragm creates suction force in one chamber (right side) by retracting the diaphragm in the direction that creates a vacuum.
DISCHARGE (chamber 2)
The second diaphragm simultaneously transfers air pressure to the medium in the second diaphragm chamber (left side), pushing it towards the discharge port.
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Flapper Valves
Tapflo flapper valves are used for pumping liquids containing large solid particles. They consist of only two elements and are hygienic and easy to clean. They allow pumping larger solid particles than standard hygienic pumps:
In addition, Tapflo hygienic diaphragm pumps equipped with flapper valves can dry-run from a height of up to 4.5 m. |
| Magnetic Ball Valve Lifters
The ability to empty the pump contents is crucial in most hygienic applications. The Tapflo ball valve lifting system ensures pump emptying without the need to dismantle it from the installation when other types of emptying are not possible. This way, the pump can be emptied without the need to rotate it. Operating principle: The ball valve, made of AISI 420 or PTFE with a steel core, is lifted by a magnetic lifter mounted on the manifold. |
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| Extended Life Diaphragms
Tapflo diaphragms are composite constructions, ideal for heavy-duty applications, providing a completely uniform surface in contact with the medium. This avoids leaks through the diaphragm and keeps it clean. Diaphragms are available in various materials and colors to suit all needs. Available material versions: EPDM, NBR, FKM, PTFE, PTFE TFM 1705b, white EPDM, PTFE with white EPDM backing, white NBR. ![]() The advanced manufacturing, curing, trimming, and finishing process ensures a long service life for the composite diaphragm, which will withstand millions of strokes. The component materials are specially made and adapted to the composite diaphragm technology and the insert molding process. |
(1) PTFE TFM layer (2) front layer (3) core (metal) (4) fabric (5) back layer |
| 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: EPDM, NBR, PTFE, PTFE TFM 1635, PE1000, FKM, PU, Ceramic, SiC, AISI 316L. |
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| ATEX Explosion-Proof Pumps | TXE Series
Tapflo’s electric diaphragm pumps made of metal and conductive plastic can be used in Ex 1 explosion hazard zones according to the ATEX Directive 2014/34/EU. The use of antistatic materials ensures that no electrostatic charges will accumulate in the pump. Conductive material additives increase the electrical conductivity of the pump surface. The pump unit is equipped with a clutch, gear motor and air treatment system in ATEX design. |
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| Pressure Switch
A device that monitors the discharge pressure value, protecting against closing the valve on the pump discharge. Protection against pump damage due to excessive pressure increase on the discharge side. |
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| Frequency Converter/Inverter
The frequency converter/inverter allows for full control of operation by controlling the motor’s rotational speed, and thus the pump’s capacity.
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| Pump capacity: | 13.2 m3/h (220 l/min) | |
| Max. discharge pressure: | 4 bar | |
| Max size of solids: | plastic and metal version: 4-10 mm hygienic version: 4-15 mm (up to 51 mm in the version with check valves for large solids) |
|
| Temperature: | 110 °C | |
| Housing materials: | PE, PTFE, aluminum, PTFE-coated aluminum, AISI 316L stainless steel | |
| Diaphragm materials: | PTFE, PTFE 1705B, EPDM, NBR, FKM, white EPDM, PTFE with white EPDM backing | |
| Valve ball materials: | PTFE, EPDM, NBR, AISI 316L stainless steel, PU, Ceramic, FKM, PTFE TFM 1635, PE1000, SiC | |
| Main 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. | |
| Aluminum and cast iron | For transporting media with a neutral pH, both thick and thin, containing solid particles or having abrasive properties. Pumps made of aluminum and cast iron can be used, for example, in workshops, the dyeing industry, wastewater treatment plants, etc. | |
| PTFE-coated aluminum | Created for the printing industry, where an alternative to more expensive PTFE pumps was needed, but aluminum was not chemically resistant. Pumps for use wherever a medium with slightly acidic or alkaline properties needs to be pumped. | |
| AISI 316L stainless steel | Castings for these pumps are made using the lost wax method, which ensures high surface quality and dimensional accuracy. They are characterized by mechanical strength combined with chemical resistance. AISI 316L steel is resistant to aggressive substances such as nitric acid and sodium hydroxide. | |
| Available sizes: | ||
| Plastic version: | ||
| Model | Max. capacity (l/min) | BSP threaded connections |
| TE50 P | 48 | 1/2″ |
| TE100 P | 110 | 1″ |
| TE200 P | 220 | 1 and 1/2″ |
| TE50 T | 48 | 1/2″ |
| TE100 T | 110 | 1″ |
| TE200 T | 220 | 1 and 1/2″ |
| Metal version: | ||
| TE70 P | 48 | 1/2″ |
| TE120 P | 110 | 1″ |
| TE220 P | 220 | 1 and 1/2″ |
| TE70 A/C | 48 | 1/2″ |
| TE120 A/C | 110 | 1″ |
| TE220 A/C | 220 | 1 and 1/2″ |
| Hygienic version: | ||
| Model | Max. capacity (l/min) | Tri-clamp connections |
| TE80 | 48 | DN 25 SMS 3017 tri-clamp |
| TE125 | 110 | DN 38 SMS 3017 tri |