Tapflo Diaphragm Pumps1. PE & PTFE pump series
2. Metal pump series
3. Sanitary pump series
4. Pharmaceutical pump series
PE & PTFE series
Tapflo pumps made from polyethylene (PE) or virgin PTFE are suitable for handling almost any kind of liquid whether it is viscous, chemically aggressive or with solids.
Polyethylene pumps
Polyethylene (PE HD) has a superior wear resistance which
is 6 - 7 times better than for polypropylene (PP). This fact makes the pump suitable for handling abrasive slurries etc.
PE is resistant to most kind of aggressive chemicals such as concentrated acids and alkalis. Maximum liquid temperature is 70°C.
PTFE (virgin polytetrafluorethylene) is a thermoplastic polymer with superior chemical resistance. The PTFE pump will handle even the most aggressive acids, for instance concentrated nitric acid.
Maximum liquid temperature is up to 100°C.
TR9 - 9 l/min, 1/4" TR20 - 20 l/min, 3/8" T50 - 50 l/min, 1/2" T100 - 100 l/min, 1" T200 - 200 l/min, 1 1/2" T400 - 400 l/min, 2" Metal seriesThe compact, smooth and simple design is common for this series. Materials available are aluminium, cast iron, stainless steel and PTFE coated aluminium.
Aluminium & cast iron pumps
For transfer of pH-neutral fluids, both thin, thick, solid laden or abrasive.
The aluminium and cast iron pumps are found in most fields; work shop and paint industries, purifying plants etc., to mention only a few.
Made in lost wax cast method, ensuring great accuracy and finish. The stainless steel pumps combine great mechanical strength with good chemical features.
AISI 316 is resistant to aggressive liquids like nitric acid and sodium hydroxide. The centre unit, which is not in contact with liquid, is made from corrosive resistant polypropylene (PP) as standard (other materials upon request).
T25 - 25 l/min, 1/2" T70 - 70 l/min, 3/4" T120 - 120 l/min, 1" T220 - 220 l/min, 1 1/2" T420 - 420 l/min, 2" Sanitary seriesThe Tapflo sanitary series is particularly designed to meet the requirements of the food, beverage, pharmaceutical and cosmetic industries. Lubrication free air distribution system, maintenance free ball check valve system and total visual inspection of the wetted parts are some of the major features for this pump series.
Made to be clean
Our design allows for total visual inspection of the wetted parts.
There are no hidden areas where bacteria can grow. The manifold clamps and the housing screws are simply removed for complete disassembly and cleaning.
The pump is also designed for cleaning and sterilization in place – C.I.P. and S.I.P. After such operations, the pump is easily turned in its support for drainage.
T80 - 80 l/min, 1" T125 - 125 l/min, 1 1/2" T225 - 225 l/min, 2 1/2" T220 - 220 l/min, 1 1/2" T425 - 425 l/min, 3" Pharmaceutical seriesWe are proud to introduce our brand new USP approved (United States Pharmacopoeia) hygienic PE pump. The Pharmaceutical series is developed in co-operation with one of the world leading supplier to the biotech market. It is produced to serve the biotech- and pharmaceutical industries in numerous applications.
Clinical material tests according to methods described in:
United States Pharmacopoeia 24, United States Pharmacopoeial Convention Inc., 2000
EC Principle of Good Laboratory Practice, Directive 1999/11/EC
United States Food and Drug Administration, Title 21, CFR, Part 58
Japanese Ministry of Health and Welfare, PAB Notification No 424
T50 - 50 l/min, 1/2" T100 - 100 l/min, 1" T200 - 200 l/min, 1 1/2" T400 - 400 l/min, 2" Key components of the Tapflo pumpsThe two diaphragms are doing the work to prime and push the liquid through the pump system. Tapflo diaphragms are of sandwich compound construction, superior for continuous heavy duty service.
Read moreThe solution with an integrated metal core, provides a completely smooth surface in contact with the liquid, without any nuts or washers. This results in no leak through and a diaphragm which is easy to keep clean. The diaphragm is available in PTFE (food grade), EPDM, white EPDM (food grade), NBR (nitrile) and FKM (viton, on certain models only).
Cutaway PTFE diaphragm
1. Reinforcement webbing
2. Light metal core
3. EPDM layer
4. PTFE layer
Hide more info Pollution free air valve
The air valve is the driving heart of the pump, distributing the compressed air to the chambers behind the diaphragms.
It is made for maintenance free duty with no lube air, thanks to the ingenious sealing system.
Read moreIt will not only save your money for lubrication, it will also save your environment from pollution. The Tapflo air valve has no deadlock position – the pump will always start automatically when air is supplied to the pump. The valve body is made from brass or optional stainless steel AISI 316.
Ball check valves
The Tapflo pump is fitted with four check valves, making sure that the liquid is transferred in the right direction through the pump.
The valve is of ball valve type, the most simple and reliable valve design. It has a good sealing capability and is easy to keep clean and to replace if necessary.
The valve ball is available in EPDM, NBR (nitrile), PTFE, AISI 316, polyurethane and ceramic to suit any kind of liquid.
Hide more info Tapflo special versionsTapflo is always busy to think forward bij devolloping new products. Most of the time a customer wants to solve a transferproblem and asks Tapflo to help. These special versions are the result
of the flexibility of Tapflo.
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Drum pumps TD
Handle your liquids comfortable. You will easily move your Tapflo drum pump between drums and containers.
The Tapflo drum pump is ideal for mobile use. It is fitted with a drum tube in polypropylene (PP) or PTFE and a handle in stainless steel AISI 316L. The drum tube is delivered in any length up to 2 m.
Tapflo diaphragm drum pump has many advantages compared with conventional drum pumps:
No rotating parts, gentle fluid handling
High pressure, able to handle viscous products
Infinitely variable flow, easy to adjust flow for safe fluid handling
TD20 – 20 l/min, 3/8" TD50 – 50 l/min, 1/2" TD100 – 100 l/min, 1"Available in many materials, ask us for more details.
Explosion proof pumps TXTapflo pumps made from conductive (carbon filled) plastics PE or PTFE are made for use in explosion hazardous environments. They can be used in Equipment group IIG (gas), CAT 2 (zone 1).
The conductive material ensures that no electrostatic loads will be accumulated in the pump.
The conductive pigments in the material reduces the surface resistance to less than 105W.
The pigments, causing the black colour, does not affect the chemical resistance of the thermoplastics. Transfer of alcohol and solvents are examples of applications for the Tapflo TX pumps.
The TX pumps have diaphragms in PTFE (with conductive back) or EPDM (conductive). An earth connection is mounted on the pump, for earthing of electrostatic loads.
All PE & PTFE series pumps are available as TX pumps.
The EC ATEX directive 94/9/EC
The ATEX directive (also known as ATEX 100a) is applicable on products used in explosion hazardous zones. This directive also covers non electrical products, like our diaphragm pumps.
From July 2003, it is mandatory within the EU to have ATEX certificate on products which are intended for use in EX-zones.
There are three main categories (zones) in the ATEX directive:
CAT 1 (zone 0), flammable material present continuously or for long periods CAT 2 (zone 1), flammable material present occasionally in normal operation CAT 3 (zone 2), flammable material present in abnormal conditions for short periods Twin pumps TT
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Tapflo PE & PTFE series pumps may be fitted with double in/outlet to achieve ”two pumps in one” for blending, mixing or recirculation of liquids. The liquid in one pump chamber is separated from the other one.
Examples:
Transfer of glue resins and hardener seperated from
each other
Transfer and recirculation of ink to printing machines
Filterpress pumps TF
The Tapflo pump station for filterpress feeding is a very compact unit that can be mounted directly to the filterpress. The design and function allows the user a straightforward pressing of slurries. Pressure regulator is already mounted to the unit.
The pump stations are based on the standard Tapflo pumps from machined polyethylene (PE).
An external pressure booster doubles the delivery pressure.
For example, with available air pressure of 7 bar, the delivery pressure will be maximum 14 bar.
The installation
As this station works self-regulating, an additional device for regulating the flow quantity is not necessary. Just mount it to the filterpress, connect it - ready.
Even the pressure regulator for the air supply is included. For monitoring the filling-level of the filterpress, stroke sensors and stroke counters are available.
TF 50 – 60 l/min, 1/2" TF 100 – 150 l/min, 1" TF 200 – 300 l/min, 1½" TF 400 – 500 l/min, 2"
Pneumixer
The Pneumixer was predominantly developed for the paint and ink industry where most raw materials in drums or containers settle out over time and need to be mixed or blended prior to use. This usually means rolling, shaking or pumping to a mixing vessel; that adds time, waste, mess and expense.
Increased productivity and reduced waste with Pneumix
The Pneumix utilises the container the product arrives in to mix and dispense and simply fits securely in the vessels fill hole. Increasing productivity by reducing waste and further product handling.
Working principle
The discharge valve is closed and the recirculation valve is open, to allow the product to circulate in the container (left).
The discharge valve is open and the recirculation valve is partially open, to both mix and to transfer the product out of the Pneumix (right).
Powder transfer pump TXP
Reduced contamination
The powder is transferred in a hermetic system from the powder container to your process.
Economical and compact solution
The Tapflo powder transfer pump can do the same job as many complex and large powder systems. The compact design also makes the unit portable.
What kind of powders?
The powder transfer pump will handle different types of process powders, with specific weight from 80 up to 720 kg/m3 dry weight. Generally, if the powder does not clump together when you squeeze it in your hand, the Tapflo powder transfer pump can be used successfully.
A few examples of common powders are sintering powder, carbon black, resins and silicones.
The air induction system eliminates powder pack up problems when starting the pump. Air is induced to the powder side of the pump for diffusion of the powder. The induction flow can manually be adjusted by means of a needle valve to obtain a optimum performance.
The powder transfer pump is based on a standard Tapflo air operated diaphragm pump. The powder is transferred by means of two diaphragms, which alternately prime the powder from the container in the first cycle and discharge to the process in the second cycle.
The capacity of the powder transfer is extremely different from one powder to another, depending on the consistency and weight etc. Fore more specific information about the capacity in your application, please contact us. Click here for our contact information.
Safe in EX-zones
The powder transfer pumps are ATEX marked, allowing use in explosion hazardous zones (group IIG/IID, category 2).
Available models - data
The powder transfer pumps are modified from the standard PTFE coated aluminium series. The PTFE coating enables an efficient transfer through the pump, with least possible resistance.
Available models are
TXP220 XEES, 1 1/2"
TXP420 XEES, 2"
Tapflo accessoires
Many accessoires are available to extend the function of the
Tapflo pumps.
Active pulsation dampners
The active pulsation dampener is the most efficient way to remove pressure variations on the discharge of the pump.
The Tapflo pulsation dampener works actively with compressed air and a diaphragm, automatically setting the correct pressure to minimise the pulsations.
The pulsation dampener is available for all Tapflo pump sizes
and material versions.
How it works
When the liquid pressure falls in the piping system, the pulsation dampener supply extra pressure to the discharge between the pump strokes by displacing liquid by means of diaphragm movement.
This pumping action created by the dampener, decreases the pressure variations and pulsations.
Tapflo has pulsation dampeners for the whole pump programm.
They are available in:
PE & PTFE Aluminium Stainless steel Sanitary stainless steel
Pneumatic diaphragm alarm system
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In case of a diaphragm break, the unit will stop the pump and turn on the horn.
Leaking liquid in case of a diaphragm break, will remain in the chamber between the wetted diaphragm and the backup diaphragm. This system grants for a high level of safety in plants where liquid is never allowed to leak.
The system consists of a backup diaphragm pump (TB), and a control and alarm system. Under normal operation, the chamber between the backup diaphragm and the wetted diaphragm is set to vacuum by the control system. If any of the diaphragms would break, the pressure will rise in the vacuum chamber. The control system will then switch of the pump and turn on the horn.
This system is allowed for use also in explosion hazardous areas, since only pneumatic components are used.
This system will immediately alarm and shut of the pump at an eventual diaphragm break. It ensures that no liquid will leak to the environment or to the air system of the pump - a perfect system where you require a high level of safety.
Batch control unit
Just set the batch volume and press ”dispense” and the pump will automatically transfer the desired volume.
The strokes from the pump are sensed from the pressure of the outgoing air. The system is easy to apply on all Tapflo pumps.
Filling containers of various volumes with a T50
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The batch unit allows you to set and pump a certain volume of liquid. When the batch is started, the unit will count the number of pump strokes the pump is doing. Based on this information, the unit will shut off the pump when the desired volume has been pumped. The pump strokes are sensed from the variation of pressure in the air exhaust by a pressure switch (placed in the counter unit).
No electric device is mounted on the pump, which allows for use even in explosion hazardous areas, provided that the batch unit is placed outside the Ex-zone.
Pneumatic level control system
The level control system will sense the liquid level within a few millimetres. The air supply to the pump is controlled by the level system.
This ingenious system is operated with pneumatic components only. The level control system may be installed in sumps, tanks or tubs to start and stop the pump at certain liquid levels.
This system is allowed for use also in explosion hazardous areas, thanks to the absence of electricity.
Evacuating liquid from a pump
The end of the hose ”low” (1) (or end of extension pipe) is placed on the desired low level in the sump and the end of the hose ”high” (2) is placed on the high level position. As the liquid is reaching the high level hose, the pump will start and pump until the liquid level is reaching the end of the low level hose. It is a very accurate system, sensing the levels within a few millimetres.
The Tapflo manufature process is certified according to ISO 9001-2000.
All pumps are CE-marked and fulfill the demands of the EC machinery directives. We are proud to say that all the pumps can be delivered with EC ATEX directive 94/9/EC. ATEX 100a is applicable on products used in hazardous zones. This directive also covers non electrical products, like air operated diaphragm pumps.
How do the Tapflo pumps work?The Tapflo diaphragm pump is driven by compressed air. The two diaphragms, connected by a diaphragm shaft, are pushed back and forth by alternately pressurising the air chambers behind the diaphragms using an automatically cycling air valve system.
Read moreSuction (1)
One diaphragm creates a suction action when being pulled back from the housing.
Discharge (2)
The other diaphragm simultaneously transmits the air pressure to the liquid in the housing, pushing it towards the discharge port.
During each cycle the air pressure on the back of the discharging diaphragm is equal to the head pressure on the liquid side.
Tapflo diaphragm pumps can therefore be operated against a closed discharge valve with no adverse affect to the life of the diaphragms.
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Where do we use Tapflo pumps?Tapflo pumps are some of the most versatile pumps on the market today.
They can be used in a variety of installations in numerous applications. Thanks to the simple operating principle, with a compact and reliable design, Tapflo diaphragm pumps meet the demands of heavy industrial duties.
Tapflo pumps are compatible with a very wide range of chemicals:
- Corrosive and chemical aggressive
- High and low viscous
- Abrasive
- Solid laden
- Shear sensitive
- Flammable
Click on item to read more about the most common applications
Chemical Industry Hide more info about Chemical Industry Paint, print and varnish industryTransfer, recirculation and blendning of ink in printing industries.
Hide more info about Chemical Industry Surface conditioning Hide more info about Surface conditioning Water treatment Hide more info about Water treatment Pulp and paper industry Hide more info about Pulp and paper industry Hygienic applications Hide more info about Hygienic applications Mechanical industry Hide more info about Mechanical industryPlease contact Delta Controls Velsen B.V. for more detailed information.
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