Sanitary diaphragm pumps

Sanitary diaphragm pumps

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Tapflo hygienic diaphragm pumps meet the requirements of the food, beverage, pharmaceutical and cosmetic industries, offering FDA, EHEDG or USP VI certifications. It can pump media with solids up to 95 mm.

They are compact, robust and easy to maintain, minimizing service costs and process downtime. The main advantages of these pumps are the oil-free air distributor, maintenance-free check valves and full visibility for inspection of all wetted parts. There are no hidden spaces where bacteria could grow. The pump can also be cleaned and sterilized in place (CIP and SIP).

Available on request with an electropolished surface Ra < 0.8 and Ra < 0.5 inside the pump and in a version for ATEX explosion-proof zones.

Tapflo hygienic diaphragm pumps meet the requirements of the food, beverage, pharmaceutical and cosmetic industries, offering FDA, EHEDG or USP VI certifications. It can pump media with solids up to 95 mm.

They are compact, robust and easy to maintain, minimizing service costs and process downtime. The main advantages of these pumps are the oil-free air distributor, maintenance-free check valves and full visibility for inspection of all wetted parts. There are no hidden spaces where bacteria could grow. The pump can also be cleaned and sterilized in place (CIP and SIP).

Available on request with an electropolished surface Ra < 0.8 and Ra < 0.5 inside the pump and in a version for ATEX explosion-proof zones.

Technical data
Pump capacity: 49 m3/h (820 l/min)
Max. discharge pressure: 8 bar
Max size of solids: 3-20 mm (up to 95 mm in the version with large solids flap valves)
Temperature: 110 °C
Body construction materials: electropolished AISI 316L stainless steel
Diaphragm construction materials: PTFE, PTFE with white backing, EPDM, white EPDM, white NBR
Valve ball construction materials: PTFE, AISI 316, PU, ceramic, PE1000
Air distributor construction materials: brass, AISI 316L stainless steel or PET with NBR, EPDM or FKM O-rings
Available sizes:
Model Max. capacity (l/min) BSP Threaded connections Tapflo hygienic diaphragm pump sizes
T30 28 1″
T80 78 3″
T125 155 1 1/2″
T225 330 2″
T425 570 2 1/2″
T825 820 3″
Typical applications
Industry Application example
Food milk, cream, yogurt, processed cheese
Dairy ketchup, mayonnaise, tomato products, mustard
Beverage flavorings, coloring agents, fruit juices
Bakery dough, ingredients
Brewery beer, flavorings, coloring agents, wort
Household chemicals soap, shampoo
Cosmetics cream, alcohol, perfume
Key benefits
Advantages of Tapflo hygienic diaphragm pumps 1. Quick disassembly
Tri-clamp system ensures quick and easy disassembly without the use of additional tools.
2. Variety of connections
The pump is supplied as standard with SMS3017/ISO2037 clamp connections. However, the pump can be equipped with almost any type of connection used in the hygienic industry – DIN 11851 thread, SMS 1145 thread, DIN 11864 aseptic connections and others.
3. Environmentally friendly pneumatic drive
The air distributor features an oil-free design, leaving the pumped medium and the environment free from contamination.
4. Homogeneous surfaces
Multi-layer diaphragms have a homogeneous surface, which eliminates the problem of bacteria build-up. The diaphragms are made of food-grade materials: PTFE, white EPDM or NBR FDA.
5. Perfect finish
Both the wetted and external sides are electropolished for a perfect finish and hygiene. Special surface finish on customer request.

Emptying the Tapflo pump by rotationEasy drainage

Empty the pump by turning it on the stand*

For complete disassembly of the pump, simply unclip the clamps securing the nozzles and unscrew the bolts connecting the housing. Then simply rotate the pump to pour out the remaining medium.

The design of the pumps in this series allows for full visual inspection of the parts in contact with the pumped medium. There are no hidden spaces where bacteria could grow. The pump can also be cleaned and sterilized directly in the installation (CIP and SIP).

*applies to models T80-T825

Operation principle

Operating principle of Tapflo sanitary diaphragm pumps

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.

Construction
Zawory klapowe do pomp higienicznych Tapflo Check Valves

Tapflo check 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:

  • T80 and T125 models: particles up to 17 mm in diameter
  • T225 and T525 models: particles up to 42 mm in diameter
  • T825 model: particles up to 95 mm in diameter

In addition, Tapflo hygienic diaphragm pumps equipped with check 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 emptying methods 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.

Zasada działania magnetycznych podnośników kul zaworowych Tapflo

Podnośniki kul zaworowych do pomp higienicznych Tapflo
Extended Life Diaphragms

Tapflo diaphragms are composite constructions, ideal for operation in harsh conditions, 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.

Membrany w pompach membranowych Tapflo
Composite diaphragm construction

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 molding process with pressing.
The elements are joined using chemical agents and adhesives.

Kompozytowa konstrukcja membran w pompach membranowych Tapflo

(1) PTFE TFM layer (2) front layer (3) core (metal) (4) fabric (5) back layer

Dystrybutory powietrza w pompach membranowych Tapflo 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.
Ball valves are the simplest and most reliable check valve design. They are characterized by tightness and ease of cleaning and replacement.

Available material versions: EPDM, NBR, PTFE, PTFE TFM 1635, PE1000, FKM, PU, Ceramic, SiC, AISI 316L.

Kule zaworowe w pompach membranowych Tapflo
Special versions
ATEX Explosion-Proof Pumps | TX Series

Tapflo’s hygienic diaphragm pumps are designed for use in potentially explosive atmospheres and are made of anti-static PE and PTFE. They can be used in Zone 1 EX in accordance with the ATEX Directive 2014/34/EU.
The use of anti-static materials ensures that no electrostatic charges will accumulate in the pump. Conductive material additives increase the electrical conductivity of the pump surface.

Tapflo Hygienic Diaphragm Pumps for ATEX Zones with Counter Flanges
Jacketed Pumps | TJ Series

Heating jackets integrated with the pump are used to keep the pump ready for operation. The heating or cooling medium circulates in the jacket, which surrounds all parts of the pump that come into contact with the pumped product.

Available for sizes: T80, T125, T225, T425

Tapflo Hygienic Diaphragm Pumps with Heating Jackets
Pumps with Flap Valves for Large Solids

Flap valves, available in hygienic pumps, are ideal for applications with larger or delicate solids.
The gentle pumping process leaves the solids undamaged.

Available for sizes: T50, T100, T200, T400

Tapflo Hygienic Diaphragm Pumps with Flap Valves for Large Solids
Pumps with Magnetic Ball Valve Lifters

Magnetic ball valve lifters are used in hygienic pumps to allow the pump to be emptied without having to remove it from the installation. There is no need to rotate the pump.

Tapflo Hygienic Diaphragm Pumps with Ball Valve Lifters
Counter Flanges

To facilitate installation, Tapflo offers a full range of connections for hygienic pumps. They fit pumps with standard tri-clamp connections, as well as optional DIN11851 and SMS connections.

Tapflo Hygienic Diaphragm Pumps with Counter Flanges
Double Diaphragm Pumps | TB Series

Designed for hazardous applications, such as chemicals. The use of a double diaphragm significantly reduces the risk of leakage of potentially hazardous or valuable media into the air distribution system and the surrounding environment.

Features and Benefits:

  • Protection – in case of main diaphragm rupture, the pump shuts down.
  • Monitoring – constantly monitors pumps, tanks, vessels and pipelines for leaks.

The Tapflo TB double diaphragm pump (also known as a barrier pump) is safer than other barrier systems available on the market. It is part of our range of pumping equipment that monitors and responds to leaks, ensuring the containment of the pumped medium.

For additional pump monitoring, we recommend the use of additional accessories, such as the GuardianTM alarm system.

Tapflo Hygienic Diaphragm Pumps with Double Diaphragm
Smart Energy-Saving Pumps | TC Series

The TC series smart pumps are a modification of standard diaphragm pumps by equipping them with LEAP technology introduced by Tapflo. LEAP® or “Low Energy Air Pump” is a patented technology used in air-operated diaphragm pumps to reduce the minimum operating air pressure by minimizing internal losses and friction compared to standard pumps. LEAP uses an intermediate system that detects the position of the diaphragm shaft, automatically controlling the diaphragm movement.

A pump with LEAP® technology can start pumping at 0.3 bar without stalling – in the test, the pump achieved 70% of its maximum capacity before other pumps even started. This translates to energy savings of up to 70%.

Features and Benefits:

  • Retrofittable – fits any Tapflo AODD pump,
  • Noise reduction – using lower air pressure reduces pump noise,
  • Available for plastic, metal and hygienic pumps,
  • Extended service life,
  • Batching – the pump allows automatic stopping after the required volume has been dispensed,
  • Improved maintenance – the main valve can be replaced in less than 2 minutes without removing the pump from the installation,
  • Electrical feedback – external pump operation monitoring,
  • Simplified pump control – no need for a pneumatic solenoid valve, reducing costs and simplifying control
  • Dry running, dead-heading
Tapflo Hygienic Diaphragm Pumps with Energy-Saving LEAP Technology

LEAP Energy-Saving Technology Logo

Accessories
Diaphragm Pump Trolleys

Want to use one pump in multiple locations in your facility? Do you have technological processes scattered throughout the factory? We offer mobile solutions adapted to most Tapflo pumps. Thanks to the possibility of free transport of the pump, the use of the device is almost unlimited.

Pump trolleys are available in several sizes, as well as in hygienic and industrial versions:

Features and benefits:

  • industrial or hygienic design,
  • 3 sizes adapted to the pump used,
  • compact and durable stainless steel construction,
  • ATEX zone compliant.

Want to know more? Check out the product page for Tapflo pump trolleys.

Tapflo hygienic diaphragm pump trolley
Alarm System | GuardianTM

The GuardianTM system is an energy-saving device designed to protect an air-operated double diaphragm pump from inefficient operation, which consumes unnecessary energy and shortens the life of parts. It also increases work safety in high-risk applications.

The GuardianTM system monitors the liquid pressure, changing it if the pressure value rises or falls below the set value. It thus controls pumps in the following cases:

  • Barrier protection – Tapflo double diaphragm pumps (TB series barrier pumps) have an additional set of backup diaphragms. In the event of a leak, the liquid remains inside the pump instead of leaking through the air outlet. The system monitors the pressure between the main and backup diaphragms, stopping the pump if the pressure exceeds the set point.
  • Dry start and stop – the system monitors the pump’s liquid discharge pressure. It stops the pump if the pressure drops below the set point, caused by a lack of medium at the suction and air being drawn into the pump.
  • Pump blockage and restart – the system monitors the pump’s liquid discharge pressure. It stops the pump if the pressure rises above the set point, caused by a closed valve or overpressure in the discharge line. If the pressure drops below the set point, the pump automatically resumes operation.
Guardian alarm system for Tapflo pumps
Control Systems | TPUK

We offer many solutions that increase the functionality and flexibility of the pump installation, as well as enable control of the pump or system.

Pneumatic Dosing Control

The dosing control unit allows you to set any air-operated diaphragm pump to transfer a precisely defined and repeatable amount of medium.
These devices are fully programmable and allow you to set a specific amount (TPUK-BP) or a specific operating time (TPUK-BT).

Pneumatic Medium Level Control

A fully pneumatic automatic system used to maintain a set liquid level in a tank.

Stroke Counter/Low Pressure VFC

A volt-free contact (VFC) stroke counter is available for integration with PLC systems.

Lifetime Counter

Indicates the total number of strokes made by the pump throughout its operating life. A compact, easy-to-use system will allow you to control servicing and implement planned preventive maintenance.

 

Control systems for Tapflo pumps - TPUK series
Filter-Regulator and Needle Valve Kit

By using this kit, the pump will always operate with the appropriate air quality and optimal pressure and speed, which will save energy and extend the life of the pump components.

The kit includes a filter-regulator, pressure gauge, wall bracket, needle valve and/or water separator. The filter is 5 microns, and the regulator is 0-12 bar and is available in sizes from 1/8″ to 3/4″ for all sizes of Tapflo air-operated diaphragm pumps.

Features and benefits:

  • optimal quality and pressure of air supplied to air-operated diaphragm pumps,
  • energy savings,
  • extended lifespan of pump components.

 

Tapflo air treatment kit - filter-regulator and needle valve
  • Technical data

  • Typical applications

  • Key benefits

  • Operation principle

  • Construction

  • Special versions

  • Accessories

Pump capacity: 49 m3/h (820 l/min)
Max. discharge pressure: 8 bar
Max size of solids: 3-20 mm (up to 95 mm in the version with large solids flap valves)
Temperature: 110 °C
Body construction materials: electropolished AISI 316L stainless steel
Diaphragm construction materials: PTFE, PTFE with white backing, EPDM, white EPDM, white NBR
Valve ball construction materials: PTFE, AISI 316, PU, ceramic, PE1000
Air distributor construction materials: brass, AISI 316L stainless steel or PET with NBR, EPDM or FKM O-rings
Available sizes:
Model Max. capacity (l/min) BSP Threaded connections Tapflo hygienic diaphragm pump sizes
T30 28 1″
T80 78 3″
T125 155 1 1/2″
T225 330 2″
T425 570 2 1/2″
T825 820 3″

Performance curves

Diaphragm pump movies