Explosion proof pumps

Tapflo air operated diaphragm 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).

 

How they work

The conductive material ensures that no electrostatic loads will be accumulated in the pump.The carbon molecules, causing the black colour, does not affect the chemical resistance of the thermoplastics.

The TX pumps have PTFE/EPDM conductive diaphragms. An earth connection is mounted on the pump, for earthing of electrostatic loads.

Application

Transfer of alcohol and solvents are examples of applications for the Tapflo TX pumps

All PE & PTFE series pumps are available as TX pumps.

The EC ATEX directive 2014/34/EU

The ATEX directive is applicable on products used in explosion hazardous zones. This directive covers non electrical products, like our air operated diaphragm pumps.

From April, 2016 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

The Tapflo TX pumps are suitable to operate in explosion hazardous areas Ex-zone 1.