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PRE - API 610 / OH2 process pump

API 610 / 0H2 Overhung single‐stage process pump suitable for heavy duty construction for clear, toxic, corrosive, flammable and hot liquids


PRE pump is an overhung single stage API 610 Process Pump (OH2)

PRE pumps are specially designed to comply with the latest edition of API 610. Ensival Moret’s highly engineered design offers reliability, efficiency and minimum pump life cycle cost. Flexible design options guarantee solutions to your challenging technical requirements. Ensival Moret provides you with the optimum solution combining high efficiency and reliability.

- Flanges per ANSI B16.5 - #300 - PN50 - Other flange standards upon request.
- Closed impeller provides high efficiency over a wide performance range while maintaining low NPSHr.
- Additional constructions with semi-open or open impeller
- Replaceable casing and impeller wear rings (front and back side).
- Shaft sealed by cartridge mechanical seal + API flushing plans
- Accessible Seal chamber per API682 and ISO21049.
- Heavy duty one-piece cast bearing frame to ensure optimal rigidity of the pump
- Efficient airfins cooled bearing housings.
- Heavy duty stiff shaft for low deflection.
- Bearing frame sealed by deflector to prevent oil contamination. Inpro Seal or equivalent are available.
- Discharge size from 25 mm to 500 mm / 1 to 20 inches
- Centre line mounted pump casing and base plate complying with ISO13709 / API610 standards.
- High radial load roller bearing.
- Back-to-Back angular contact bearings handle high axial loads.
- Anti-vortex rib.
- Casing drain is standard.


- Capacity : up to 4500 m³/h (19,800 US gpm)
- Total head : up to 320 m (1,050 ft)
- Maximum operating pressure : 60 bar (870 PSI)
- Temperature operating range : from -90 to 400° C (-130 to 752° F)
- Maximum speed : 3,600 rpm at 60 Hz
- Higher capacities and heads upon request

Standard Materials

- Materials per API standard: S5, S6, C6, A8, D1, D2.
- Other materials available upon request

Industrial Applications

- Petrochemical industry
- Oil and Gas
- Offshore
- General industry

Additional Models

- PRE Low Flow
- PREK – PRESF : Special design for slurry applications
- PRECF : Closed impeller with relief vanes
- PRER – PRETR : Reinforced design for high temperature and pressure