Plastic diaphragm pumps. PE & PTFE series

Plastic diaphragm pumps. PE & PTFE series

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Tapflo diaphragm pumps are versatile pumps for pumping almost any liquid – regardless of its density, chemical aggressiveness or solids content. A characteristic feature of all Tapflo diaphragm pumps is their compact and simple design. They do not require electrical power, guarantee simple maintenance and maximize the reduction of service costs. They are available in two materials – polyethylene (PE) or .

The Tapflo diaphragm pump is one of the most versatile pumps currently available on the market. It meets the requirements of demanding, industrial working conditions in the chemical, food, paper, electronics, surface treatment and wastewater treatment industries.

Tapflo diaphragm pumps are versatile pumps for pumping almost any liquid – regardless of its density, chemical aggressiveness or solids content. A characteristic feature of all Tapflo diaphragm pumps is their compact and simple design. They do not require electrical power, guarantee simple maintenance and maximize the reduction of service costs. They are available in two materials – polyethylene (PE) or .

The Tapflo diaphragm pump is one of the most versatile pumps currently available on the market. It meets the requirements of demanding, industrial working conditions in the chemical, food, paper, electronics, surface treatment and wastewater treatment industries.

Technical data
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  
 

Sizes of Tapflo plastic diaphragm pumps



TR09 11 1/4″
TR20 24 3/8″
T50 60  1/2″
T100 125 1″
T200 330 1 1/2″
T400 570 2″
T800 820 3″
Typical applications
Industry Application example
Chemical acids, bases, alcohols, solvents, latex, emulsions
Food CIP fluids, spices, pigments
Paper glues, slurries, adhesives, thinners, resin, sodium silicate, titanium oxide
Surface treatment galvanic baths, acids, solvents, anode slimes, lacquers, enamels
Wastewater treatment plants sludge, flocculants, application to filter presses, neutralization
Electronic transport of liquids, “ultra” pure media, solutions for electrolytic coatings, mercury, solvents
Printing glues, varnishes, inks, paints, latex, acids, resins, pigments
Key benefits
Advantages of Tapflo plastic diaphragm pumps 1. Installation flexibility
Connections can rotate 180°. Simply rotate the connection to adjust its position to the installation. Plastic connections 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.
3. Low air consumption
The air supply system has been designed to minimize all air channels. This allowed the elimination of all “dead spaces”, and consequently achieve maximum pump efficiency.
4. Design created for chemicals
The multi-layer diaphragm has a completely uniform surface (without metal elements) on the medium side. This is an ideal solution for transporting chemicals.
Operation principle

The operating principle of Tapflo 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 the diaphragm’s lifespan.

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
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 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 TapfloComposite diaphragm design

The advanced manufacturing, curing, trimming and finishing process ensures a long service life of 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 insert molding process.
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 air path and dead spots. This design is the 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
Drum Pumps | TD Series

They provide convenient unloading of small tanks and easy movement of the pump between different tanks and drums.

A lightweight and mobile solution for emptying drums and containers. The pumps are equipped with a PP or PTFE tube and an AISI 316L stainless steel handle.

Features and Benefits:

  • Configurable tube length – the pump tube can be supplied in any length up to 2 meters.
  • Mobile and versatile – the pumps can be easily moved between drums and containers.
  • Handy and convenient – compact pump equipped with a comfortable handle.

 

Tapflo TD Diaphragm Drum Pumps
ATEX Explosion-Proof Pumps | TX Series

Tapflo diaphragm pumps designed for use in potentially explosive atmospheres, made of antistatic PE and PTFE. They can be used in Zone 1 EX in accordance with 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.
An example of the application of Tapflo TX diaphragm pumps can be, for example, the transport of alcohols and solvents.

Tapflo Plastic Diaphragm Pumps in ATEX Explosion-Proof Version
Pumps with Built-in Pulsation Dampener | TK Series

The built-in pulsation dampener is an ideal solution for eliminating pressure surges in the discharge line wherever space in the installation is limited.

Available for sizes: TRK20, TK50, TK100, TK200

Built-in Pulsation Dampener for Tapflo Diaphragm Pumps
Pumps with Double Manifolds | TT Series

Tapflo PE & PTFE series pumps can be equipped with double manifolds at the pump inlet and outlet.

This gives the effect of “two pumps in one”, used for mixing or circulating liquids. The medium in one pump chamber is separated from that in the other.

Example applications:

  • mixing two liquids with one pump (50/50 ratio); (example installation next door),
  • transfer and recirculation of ink to printing machines,
  • transfer and dilution of liquids in one pump.
Tapflo Plastic Diaphragm Pumps with Double Manifolds
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 rupture of the main diaphragms, the pump is switched off.
  • Monitoring – constantly monitors pumps, tanks, vessels and pipelines for leaks.

The Tapflo TB double diaphragm pump (so-called 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 tightness of the pumped medium.

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

The intelligent TC series 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 reducing internal losses and friction compared to standard pumps. LEAP uses an intermediate system that detects the position of the diaphragm shaft, automatically controlling the movement of the diaphragm.

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

Features and Benefits:

  • Modernization – fits any Tapflo AODD pump,
  • Noise reduction – using lower air pressure reduces pump noise,
  • Available for plastic, metal and hygienic pumps,
  • Extended device life,
  • Dosing – 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, cost reduction and simplified control
  • Dry running, operation against a closed valve
Tapflo Plastic Diaphragm Pumps with Energy-Saving LEAP Technology

LEAP Energy Saving Technology Logo

Pumps with Integrated Flanges | 3D/3A

The robust design of the integrated flanges proves itself when there is a risk of vibrations related to the installation. Solid connectors provide better stability and pump sealing.

This design is an excellent solution for the most demanding applications, such as TF filter press pumps, where the pump operates at higher pressures.

Available for sizes: T50, T100, T200, T400

Integrated Flanges for Tapflo Diaphragm Pumps
Pneumatic Mixer | Pneumixer

Designed for use in the paint industry. Paints and dyes stored in drums can stratify, so they must be mixed before use. This involves rocking, shaking or pumping to a mixer, which increases process time, product consumption, mess and expense.

Features and Benefits:

  • design adapted to 1000 liter IBC tanks,
  • no need to use a mixing tank,
  • elimination of problems related to conventional mixing,
  • lack of rotating parts allows the pump to be used for mixing and dispersion.
Tapflo Pneumixer Pneumatic Mixer with Diaphragm Pump
Accessories
Pulsation Dampeners for AODD Pumps | DT Series

The Tapflo DT Active Pulsation Dampener is the most effective way to eliminate pressure fluctuations at the pump outlet. It works actively with compressed air and a diaphragm, automatically adjusting to the current pressure to minimize pulsation.

Tapflo DT Active Pulsation Dampeners are available for all sizes and material versions of Tapflo diaphragm pumps, including versions designed for use in ATEX explosive atmospheres.

Want to know more? Check out the Tapflo Pulsation Dampeners product page.

Tapflo DT-4 Active Pulsation Dampeners for Diaphragm Pumps
Trolleys for Diaphragm Pumps

Do you want to use one pump in multiple locations in your facility? Do you have technological processes spread throughout the factory? We offer mobile solutions tailored 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 design.

Want to know more? Check out the Tapflo Pump Trolley product page.

Tapflo Industrial Trolley for Diaphragm Pumps - Size S
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 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 Run Protection 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 on the suction side 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 Batch Control

The batch 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 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.

 

Tapflo Pump Control Systems - 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
Types of installation
FLOODED SUCTION SELF-PRIMING SUBMERSIBLE
Instalacja pompy membranowej Tapflo - instalacja zalana. Instalacja pompy membranowej Tapflo - instalacja samossąca. Instalacja pompy membranowej Tapflo - instalacja zatopiona.
Installation designed with positive pressure on the suction side. This is the best solution when it is necessary to completely empty the tank or when pumping high-density media. The design of Tapflo diaphragm pumps allows them to operate with high vacuum. It is possible to start the pump with vacuum on the suction side and this does not cause any damage to the device. Suction lift is up to 5 meters from an empty pipeline and up to 8 meters from a wet pipeline. The suction capacity depends on the pump size. All Tapflo diaphragm pumps can be installed as submersible. It is important to check the chemical resistance of all elements that will be in contact with the medium. A condition for pump operation is to discharge the air outlet from the pump above the liquid level using a suitable hose.
  • Technical data

  • Typical applications

  • Key benefits

  • Operation principle

  • Construction

  • Special versions

  • Accessories

  • Types of installation

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  
 

Sizes of Tapflo plastic diaphragm pumps



TR09 11 1/4″
TR20 24 3/8″
T50 60  1/2″
T100 125 1″
T200 330 1 1/2″
T400 570 2″
T800 820 3″

Performance curves

Diaphragm pump movies