API 610 OH2 Process Pump
Heavy-duty API 610 / ISO 13709 Type OH2 process-pump platform for refinery, petrochemical and severe-service duties. Series coverage extends to 2,600 m³/h, 300 m head, 100 bar and 425 °C; the operating point of the selected size governs the final selection.
New API 610 Project? Start With the Information You Already Have.
You do not need to complete a full API datasheet before the first engineering review. A duty point and process description are enough to begin.
Flow + Head
Required duty point, operating range, frequency and any existing curve or project design point.
Fluid + Conditions
Liquid, temperature, pressure, SG, viscosity, solids and corrosion considerations.
Specification + Interfaces
Material class, seal / auxiliary requirements, motor, baseplate, nozzles, inspection and documentation.
End Suction
Centerline-Mounted Casing
Seal / Shaft Region
Bearing Housing + Driver Interface
Built Around the API 610 OH2 Arrangement
Centerline-mounted end-suction construction, back-pull-out serviceability and a finned bearing housing with fan cooling define the core mechanical platform for hot and cold process service.
Performance Coverage Should Be Selected From the Actual Duty Point.
The series envelope reaches 2,600 m³/h capacity, 300 m head, 100 bar pressure and 425 °C temperature. These are series-level limits; the actual operating point, pump size, speed and impeller selection must be confirmed against the reviewed duty point.
API 610 OH2 Series Performance Limits
Use these values as the published series envelope. Final selection is always checked against the operating point and selected pump size.
Up to 2,600 m³/h
Equivalent to approximately 11,440 US gpm at the series level.
Up to 300 m
Equivalent to approximately 1,000 ft at the series level.
Up to 100 bar
Equivalent to approximately 1,450 psi at the series level.
Up to 425 °C
Equivalent to approximately 800 °F for hot-process service.
Configure the Pump Around the Process — Not the Other Way Around.
The pump is configured around the process conditions, metallurgy, seal requirements and complete project package.
Pressure, Temperature & Liquid
Review operating and design conditions before selecting hydraulics or metallurgy.
- Normal / rated / maximum duty
- Liquid properties and vapor pressure
- NPSHa / suction condition
- Continuous / intermittent service
Metallurgy by Service
Material selection is reviewed against corrosion, erosion, temperature and project requirements.
- Casing / impeller metallurgy
- Shaft and wear components
- Material certification scope
- Project material class
Seal Arrangement & Utilities
Seal chamber, mechanical seal and auxiliary requirements are confirmed as part of project review.
- Seal arrangement
- Seal plan / utilities
- Cooling / flushing requirements
- Instrumentation interfaces
Driver, Baseplate & Documentation
Complete package interfaces are reviewed before manufacturing and release.
- Motor / driver
- Coupling / guard
- Baseplate / nozzle interfaces
- Inspection / test / documentation scope
API 610 OH2 Duties Across Refinery & Process Applications
Use application examples as selection context. Final suitability depends on the actual duty, liquid, operating range and project specification.
What We Verify Before an OH2 Pump Is Released
Hydraulics, process conditions, package interfaces and quality requirements are reviewed before release.
Duty & Operating Range
Flow, head, speed, operating window, NPSH and hydraulic selection.
Conditions & Metallurgy
Pressure, temperature, liquid properties, corrosion and material requirements.
Package Interfaces
Nozzles, baseplate, shaft centerline, coupling, motor and project interfaces.
Auxiliary & Release Scope
Seal plan, cooling / lubrication, inspection, testing and documentation.
Use a Dedicated Replacement Route When the Installed Pump Is Known.
This keeps the generic OH2 page focused on new API 610 selection while preserving high-intent replacement pages.
Existing Goulds 3700
Use the dedicated 3700 page for model-specific hydraulic, dimensional, material, seal and installation-interface review.
Review Goulds 3700 Replacement →Existing Sulzer Pump
Keep ZA / ZE / ZF and other Sulzer replacement paths inside the existing Sulzer engineering hub.
View Sulzer Replacement Hub →Other Installed Pump
Send the model, datasheet, curve or GA drawing for a project-specific replacement review.
Send Existing Pump Data →API 610 OH2 Product FAQ
Answers focus on the information needed to begin an OH2 engineering review.
What is the published series operating envelope?
The series-level envelope extends to 2,600 m³/h capacity, 300 m head, 100 bar pressure and 425 °C temperature. These are maximum series figures; the selected pump size and reviewed duty curve govern the actual operating point.
What information do I need to select an API 610 OH2 pump?
Start with the required flow, head, process liquid, operating temperature and pressure. If available, include the project specification, NPSHa, material requirements and seal / auxiliary requirements.
Is this page intended for a new pump or an existing pump replacement?
This page is primarily for new API 610 OH2 duties. Existing Goulds 3700 and Sulzer installations should follow the dedicated replacement engineering routes shown above.
Can you review an existing performance curve?
Yes. An existing curve or duty point can be used as an engineering input. Final pump selection is confirmed against the complete operating and process requirements.
Can materials and seal arrangements be configured for the application?
Material and seal requirements are reviewed against the process fluid, temperature, pressure and project specification. Final available options must follow the selected product configuration and verified factory data.
Do I need to complete a full API datasheet before requesting a quote?
No. A duty point, process description or purchasing specification is enough to begin an engineering review. Additional details can be confirmed after the first review.
Can you review API 610 requirements for the current project edition?
Project compliance should be reviewed against the edition and purchaser specification stated in the inquiry. Do not assume every project uses the same edition or optional requirements.
FAST RFQ
Request an API 610 OH2 Pump Quote
Paste the purchasing specification or enter only the duty and project details you already know. Engineering can confirm any additional information after review.
Tell us about your API 610 OH2 requirement
Paste the buyer specification as received, or complete only the fields you already know.