Features & Benefits

Made from PE that is 7 times better wear resistant compared with PP

Very strong, machined from solid blocks

Superior for strong chemicals, pumps made from virgin PTFE
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Tapflo pumps made from polyethylene (PE) or virgin PTFE plastics are suitable for handling almost any kind of liquid whether it is viscous, chemically aggressive or with solids.

Few components and a simple but ingenious design is peculiar for all Tapflo pumps. It is a compact pump, easy and quick to maintain, keeping your service costs and process down time to a minimum.

Polyethylene (PE) 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 pumps

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.

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    1. Flexible installations – The connections may be rotated 180°. Simply turn the connections to fit your piping system. Threaded BSP or NPT  plastic connections is standard, AISI 316 or other connections types are also available.
    2. Solid and strong – The pump body is machined from solid PE or PTFE. The solid design will stand against mechanical forces as well as aggressive chemicals.
    3. Chemical design – The compound diaphragm has a completely smooth liquid side surface and with no metal in contact with the liquid. Ideal for a safe chemical handling.
    4. Low air consumption – The air distribution system is designed with shortest possible air distribution ways. This eliminates ”dead spaces”, resulting in high efficiency and low air consumption.

Typical Applications

IndustryExample of Application
ChemistryAcids, alkalis, alcohol,
solvents, latex, emulsions
FoodCIP fluid, flavouring, pigments
Pulp & paperGlue, slurries, adhesives, dispersions, resins, sodium silicate, titanium oxide
Surface conditioningElectroplating baths, various acids, solvents, anodic sludge, varnish, enamels
Water treatmentSludge handling, filter press applications, neutralization and flocculants
ElectronicsCarrier fluids, ultra pure liquids, electroplating solutions, mercury, solvents
Print & paintGlue, additives, varnish, ink, paint, latex, acid, resins, pigment

Material of Components

ComponentModel: Material
Pump housing and all thermoplastic detailsPolyethylene, PE or PTFE
Centre block
(not wetted)
PP
DiaphragmsTR9: PTFE, FKM
TR20 – T800: PTFE, EPDM or NBR
Valve ballT50 – T400: PTFE, EPDM, NBR, AISI 3161, PU, Ceramic
T800: PTFE, EPDM, NBR
Rod valvesTR9 – TR20: PTFE
Air valvesBrass/NBR or optional AISI 3161/FKM
O-ringsEPDM, PTFE or FKM
Housing pin screwsStainless steel AISI 304
Diaphragm shaftStainless steel AISI 304
Drum handle
(TD pumps)
TRD20 – TD100: Stainless steel AISI 316L
Reinforcement plates (TF pumps)T50 – T400: Stainless steel AISI 316L
Reinforcement plates PTFE pumpsStandard pumps: PET
ATEX pumps: AISI 316L