Cat Pumps offer bareshaft pumps for use in both Zone 2 and Zone 1 areas. These are designated II 2G cb IIB T4 for use in most flammable gas environments except Zone 0 and are available for applications between 1 to 300litre/min and for pressures up to 700bar. The Company also has the facilities to build its pumps into motorised packages, including ATEX motors to the required configuration, together with transmissions, guards and other components. The two categories most commonly offered are:
Pump, motor and transmission for use in Zone 2 gas hazard areas, designated II 3G IIB T3
Pump, motor and transmission for use in Zone 1 gas hazard areas, designated II 2G cb IIB T3
These packages can be constructed as either direct-drive via a suitable flexible coupling or with a speed-reducing transmission depending on the flow rate specified. They can also be upgraded to the more demanding T4 category when required.
Cat pumps can, on request, also configure and supply pumps for Dust Hazard areas. The company is also happy to discuss applications for flammable liquids or those designated ‘dangerous’ according to EU directive 67/548/EEC, as it may be able to provide suitable specially-adapted products.”