Goulds 3393 High Pressure, Multistage Ring Section Pumps

Summary

Product Identification

The Goulds 3393 is a high-pressure, multistage ring section pump featuring a radially split, segmented casing and modular interstage components. It is available in both radial and end suction configurations.

Key Features:

• Designed for world-class efficiency and reliability
• Precision cast components
• Modular design
• End or radial suction configurations
• Multiple hydraulics
• Multiple nozzle orientations for radial suction pump
• Casing wear rings standard

Applications:

• Reverse osmosis
• Boiler feed
• Cogeneration
• Shower / spray service
• Pressure boosting
• High pressure cleaning
• Snow making

Operating Limits

• Temperature:
  • All configurations: 350°F
  • Top (ES) or top-top (RS) arrangement required for temperatures over 250°F
• Suction Pressure: All configurations: 350 psig
• Discharge Pressure:
  • Duplex/super duplex materials: 1480 psig
  • 12% chrome materials: 1687 psig

Mechanical / Hydraulic

General:

• Radially split, segmented casing, multistage pump
• Modular interstage components
• Radial and end suction configuration
• High efficiency design with integrated diffuser and interstage casing cast as a single component to reduce hydraulic losses.

Suction and Discharge Casings:

• Flanges raised face per ANSI/ISO or EN/DIN specifications
• Radial and end suction available for suction casing
• Product lubricated silicon carbide sleeve bearing for end suction pump
• Dual volute type discharge casing for improved efficiency and lower radial loads
• Radial suction and discharge casing nozzles positioned in 90° increments
• Casing wear rings standard

Interstage Casings:

• Rigid, heavy-duty parts
• One-piece combined continuous channel multivane diffuser and stage piece
• Casing wear rings standard

Impellers:

• Enclosed type
• Precision investment cast
• Keyed to the shaft
• Dynamically balanced
• Two impeller designs (minimum) for each pump size
• Optional impeller wear rings to renew efficiencies

Shafts:

• Impeller keyways staggered for better balance
• Shorter bearing span provides a stiffer shaft

Balancing Device:

• Involute balance drum for axial thrust balance
• Dual step surface for closer running clearance
• Accessible and removable from the discharge side of the pump for simplified maintenance

Instrumentation:

• Bearing frames pre-machined for temperature and vibration sensors
• i-ALERT® onboard condition monitoring device is standard, providing early visual indication of operating performance.

Seals and Seal Systems:

• Single and double cartridge mechanical seals
• Standard seal flush plan modified plan 11/13
• Seal chamber accepts a mechanical seal with pumping ring
• Plan 11, 23 available as options

Bearing Housings:

• Radial suction pump bearing housings identical on suction and discharge ends
• Inpro VBXX-DTM labyrinth seals are standard
• Finned and fanned for additional cooling
• Instrumentation ready

Bearings:

• End suction sleeve bearing supported in the suction casing
• Heavy-duty anti-friction bearings in bearing housings
• Oil lubricated anti-friction bearings

Couplings:

• Disc type spacer coupling standard

Coupling Guards:

• Standard
• Comply with OSHA and EN requirements

Shaft Guards:

• 304SS expanded metal shaft guards cover bearing housing openings

Baseplates:

• Rigid fabricated steel design
• Reduced vibration
• Assured positive alignment

Drivers:

• Electric motor
• Steam turbine
• Diesel engine
• Speed increasing or reducing gears

Dimensions: Dimensions vary significantly by pump size and number of stages (e.g., 2.5x4-8, 4x5-10, 5x6-11, 6x8-13). See the official PDF for exact tabulated values.

Materials of Construction

The primary wetted components (casings, impellers, balance drum, seal chamber) are available in:

• 12% Chrome Steel
• Duplex Stainless Steel
• Super Duplex Stainless Steel

Other components utilize a variety of materials including Nitronic 60 + PEEK, PEEK, Steel, Silicon Carbide, Ductile Iron, 17-4 PH, Carbon Steel, 316 SS, 20Cb3 SS, Alloy Steel, Bronze/Viton, Aluminum/Glass, Buna-N, EPDM, Hastelloy C, and Stainless Steel/Epoxy for specific parts like bearings, seals, plugs, and instrumentation.

Certifications

• CE marking
• ATEX certification

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror