Explosion proof mechanical booster pumps are certified for use within potentially explosive atmospheres.
The EH4200C mechanical booster pump has been certified for use in CSA Division 1 area, Gas Class I, Group C D and Dust Class II Group F G, Temperature Class T3C. The temperature classification of the pump is based on the outlet pressure of the pump being maintained below the critical backing pressure of 10 mbar (1 x 103 Pa) at zero flow.
The EH mechanical booster pump, based on the simple Roots principle, remains the favourite pump for applications where high pumping speeds are required for pressures in the region of 0.01 to 10 mbar. This pump must always be backed by another pump, which can deliver against a high-pressure differential to atmospheric pressure.
Operating at relatively low pressures, the mechanical booster pump is not exposed to the same concentrations of corrosive process media as is the backing pump, which makes it highly reliable.
Explosion proof mechanical booster pumps may be supplied with explosion proof motors individually or part of an explosion proof system.
|Displacement (swept volume)|
|50Hz||4140 m3h-1 / 2440 ft3min-1|
|60Hz||4985 m3h-1 / 2935 ft3min-1|
|Effective pumping speed with backing pump|
|E2M275||3100 m3h-1 / 1825 ft3min-1|
|Pressure differential across pump †|
|50Hz||0-70 mbar / 0-52 Torr|
|60Hz||0-50 mbar / 0-38 Torr|
|Operating continuous inlet pressure||0-1000 mbar / 0-760 Torr|
|Maximum outlet pressure||1000 mbar / 760 Torr|
|Recommended backing pumps||GXS450, E2M275|
|50Hz||220-240V / 380-415V|
|60Hz||230V / 460V|
|Hydrocarbon||11kW / 15hp|
|PFPE||11kW / 15hp|
|Ambient temperature range|
|Operating||5 to 40°C / 40 to 104°F|
|Storage||-10 to 80°C / 14 to 176°F|
|Maximum operating humidity||90% RH|
|Recommended cooling water supply pressure||2-6 bar|
|Cooling water connections||3/8 inch BSP male|
|Standard version||Ultragrade 20|
|PFPE version||Fomblin® YVAC 16/6|
|Gear case||3.5 litre|
|Coupling cover||6.5 litre|
|Shaft seal reservoir||1.5 litre|