Diaphragm Pumps

Features and benefits:

Run dry without damage.
Easy to use, no need of guarding device.
Infinitely variable flow control.
Flexible and easy to adjust.
Few components.
Low down time and mainenance costs.

Applications:

Water Treatment
Hygienic
Paint, Print and Varnish

The Suction Cycle

Suction (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.

Long Life Diaphragms

The 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.
The 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 and FKM (FKM on certain models only).

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. It 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.

Download (PDF, 7.34MB)

Serving Western Canada Call Us (403) 214-2049

Diaphragm Pumps