ATEX Metal Diaphragm Pump

The ATEX directive (also known as ATEX 100a) applies to products used in hazardous areas such as those subject to explosions like our ATEX Diaphragm Pumps. This directive also covers non-electrical products, like our Diaphragm Pumps. Since July 2003, it is now mandatory within the EU to have an ATEX certificate on products 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 occasionally present in normal operation
• CAT 3 (zone 2), flammable material present in abnormal conditions for short periods

Tapflo ATEX Metal Diaphragm Pump constructed from conductive (carbon filled) plastics HDPE or PTFE, can be supplied for use within Equipment group IIG (gas), Cat 2 (Zone 1). The conductive material ensures that no electrostatic loads will accumulate within the pump. The conductive pigments in the material reduce the surface resistance to less than 105 W. The pigments, causing the black colour do not affect the chemical resistance of the thermoplastics that the pump is made from. The ATEX Metal Diaphragm Pump has diaphragms in PTFE (with conductive back) or EPDM (conductive). An earth connection is mounted on the pump for earthing of electrostatic loads. The TX variant can be supplied across all sizes of Tapflo pumps.

Tapflo’s AOD ATEX range is now available for ATEX Zone 0 as the TZ ATEX Pump. This excludes the Aluminium Metal Diaphragm Pump series.

This pump also offers pneumatic and electric valve draining; speak to a team member to discuss this option.

• Flows up to 820 l/min
• Pressures up to 160m
• Self-priming
• Solids handling up to 100mm
• Viscosity up to 200 cSt
• Conductive material ensures no electrostatic loads will be accumulated in the pump
• Diaphragms in PTFE (with conductive back) or EPDM (conductive)