Goulds 3620 API 610 Single-Stage, Between-Bearing, Radially Split Pumps

Summary

Product identification

• Model: Goulds 3620
• Type: API BB2 Single-Stage, Between-Bearing, Radially Split Process Pump
• Standards: Designed to fully meet ISO 13709 2nd Edition / API 610 11th Edition

Operating limits

• Capacity: Up to 20,000 GPM (4,540 m³/h)
• Total Dynamic Head: Up to 1,500 feet (455 m)
• Temperature: Up to 850° F (455° C)
• Pressure: Up to 1,000 psig (70 bar)
• Design Life: Designed for a 20-year service life.
• Bearing Life: Thrust and radial bearings sized for a minimum three (3) year life under most severe operating conditions, exceeding API 610 / ISO 13709 requirements.

Applications

• Petroleum: Refining (tower bottoms, process feed, column reflux, circulation and pump around, process booster), production, and distribution.
• Petrochemical and Chemical: Demanding chemical processing.
• High Temperature: Boiler circulation.
• General Industrial: Requiring high temperature or high pressures.
• Power Plant: Boiler feed booster, boiler circulation, ash sluice.

Mechanical / hydraulic

• Casing: Radially split, centerline mounted, dual volute design. Heavy duty mounting extensions accept API 610 / ISO 13709 nozzle loads and maintain pump alignment under extreme service conditions. Fully confined controlled compression gasket assures leak-proof sealing.
• Impeller: Double suction design for low NPSH services, hydraulically designed to balance axial loads. Rotor and impeller balanced to ISO 1940 Grade 1.0 (exceeds API minimum).
• Shaft: Heavy duty shaft with minimum deflection, sized to meet deflection and rotordynamics requirements of API 610 / ISO 13709.
• Bearings: Heavy duty radial bearings standard. Heavy duty thrust bearing with duplex 40° angular contact thrust bearings and deep-groove (Conrad) radial bearings.
• Seals: Enlarged seal chambers conform to API 610 / ISO 13709 dimensional requirements, allowing use of a wide range of API 682 / ISO 21049 cartridge mechanical seals. Labyrinth oil seals made from non-sparking metal prevent oil leakage and contaminant intrusion.
• Wear Rings: Renewable wear rings are a standard feature, with API 610 / ISO 13709 clearances and positively locked.
• Flanges: Class 300 RF flanges standard; other classes and facings optional.
• Maintenance: Casing head on outboard end allows removal of rotor without disturbing driver or suction and discharge piping. Single head standard, double head design optional.
• Materials: Available in a wide range of materials, including all API 610 constructions and custom application needs.
• Hydraulic Coverage: Extensive hydraulic coverage is offered. Hydraulic coverage charts for 50 Hz and 60 Hz are present in the official PDF, representing 80% to 110% of best efficiency point (BEP). See the official PDF for exact tabulated values.
• Packaging: Engineered packaging available with a wide range of drivers, seals, piping, nozzle configurations, flanges, baseplates, and QC testing.

Disclaimer

This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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