Goulds 3298 Chemical Process Pumps

Summary

Product Identification

The Goulds 3298 is a sealless chemical process pump designed for handling moderate to severe corrosives. It is available in several configurations:

• Goulds 3298 Close-Coupled: Standard design.
• Goulds SP 3298 Self-Priming: For suction lift conditions, features a one-piece casing without a check valve.
• Goulds V 3298 Space-Saving Vertical In-Line: In-line design for minimal floor space and reduced installation costs.
• Goulds 3298 XS: A smaller variant providing low flow coverage.

Overview

The 3298 series offers an effective alternative to pumps with mechanical seal problems, meeting strict EPA regulations with its zero-emission, sealless design. Key benefits include extended pump life, optimum performance, and ease of maintenance.

Operating Limits

Goulds 3298 (Standard)

• Capacities: to 1,200 GPM (270 m³/h)
• Heads: to 500 feet (162 m)
• Temperatures: to 250° F (121° C)
• Pressures: to 225 PSIG (1551 kPa)
• Solids Handling: Can pass 5% (by weight) soft solids up to 160 microns.

Goulds 3298 XS (Low Flow)

• Capacities: to 120 GPM (27 m³/h)
• Heads: to 160 feet (49 m)
• Temperatures: to 250° F (121° C)
• Pressures: to 150 PSIG (1034 kPa)

Services and Applications

The Goulds 3298 is suitable for a wide range of chemical services and applications:

Services:

• Hydrochloric Acid
• Methane
• Sodium Sulfate
• Sodium Hydroxide
• Sodium Hypochlorite
• Sulfuric Acid

Applications:

• Rail Car or Tank Unloading
• Batch Chemical Processes
• Specialty Chemicals
• Column Reflux or Bottoms
• Reactor Feed

Mechanical / Hydraulic Features

General Design

• Sealless Design: Eliminates mechanical seals for zero leakage and zero emissions.
• ANSI Dimensional: Allows easy retrofit of problem ANSI pumps.
• Close-Coupled Design: Eliminates the need for pump/motor alignment.
• Frame-Mounted Design: Optional for installation flexibility.
• Non-Slip Synchronous Drive: Utilizes high-strength neodymium iron rare earth magnets for high torque and hard-start capability without slip.
• Efficiency: Equivalent to sealed ANSI pumps, 30% higher than metal sealless pumps.
• Maintenance: Designed for ease of maintenance with minimum parts and one-craft maintenance.
• Safety: Features drive and driven magnet assembly safety clearances (Frame-Mounted Design) and adapter/casing drain connections.
• Dry Run Protection: Optional Dryguard™ silicon carbide bearings provide enhanced dry run capability, reducing the coefficient of friction and offering up to 1.5× harder protection than standard silicon carbide. Power monitors are recommended for ultimate protection.
• Bearing Lubrication: Generous passageways in the magnet and bearing circuit maximize flow rate and pressure in the critical bearing area to prevent vaporization and loss of hydraulic bearing support.

Materials of Construction

• Casing: Ductile Iron with a minimum 1/8 inch (3 mm) Tefzel® (ETFE) lining.
• Impeller Assembly: Tefzel® (one-piece enclosed design).
• Stationary Shaft: Pure sintered Silicon Carbide (optional Dryguard™).
• Bearing Spider: Tefzel®/Silicon Carbide (optional Tefzel®/Dryguard™).
• Containment Shell: Tefzel® lining with glass reinforced vinylester backing. Burst pressure greater than 500 PSIG.
• O-rings: Standard Viton® (optional EPDM, or Viton® encapsulated in TEFLON®).
• Radial Bearing: Standard Carbon Graphite (optional Silicon Carbide or Dryguard™). Two-piece design with Teflon® spacer.
• Impeller Thrust Bearing: Standard Carbon-Filled TEFLON® (optional Silicon Carbide or Dryguard™).
• Clamp Ring: Ductile Iron.
• Frame: Cast Iron.
• Fasteners: 304 Stainless Steel for clamp ring to case, frame to clamp ring, and frame foot.
• Gaskets: Gylon for case drain, Aramid Fibers with EPDM Rubber for frame to clamp ring.

Dimensions and Weights

Dimensions and weights vary significantly by pump group (XS, S, M, L) and configuration (Close-Coupled, Frame-Mounted, SP, V). Detailed tables are provided in the official PDF, including dimensions A, D, X, Y, Z, and approximate pump and motor weights.

See the official PDF for exact tabulated values.

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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)

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