The model ERPN belongs to Flowserves family of API 610 end suction pumps.
The pump line is based on a modular system, thus providing maximum design and operating flexibility.
The pump is available with several impeller designs.
• closed impeller with front and back wear rings. Above a certain size the axial thrust is balanced by balancing holes.
• semi open impeller with back vanes for abrasive fluids
• free flow (recessed) impeller for fluids containing fibre
All three impeller versions can be combined with an inducer for low NPSHA applications.
Also a heat jacketed version exists for crystallizing fluids, e.g. Urea.
For high suction pressure applications the balance holes are seized individually to ensure a trouble-free operation.
Nomenclature
Example: ERPN 150-200 – X-Ind.
150:Discharge nozzle in mm
200 :max. impeller size in mm
Ind Inducer
X: S high suction pressure
O semi open impeller
F free flow impeller
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