Goulds SRL Severe Duty Slurry Pumps

Summary

Product identification

The Goulds SRL series are severe duty slurry pumps, designed for abrasive and corrosive slurry services. The Goulds Model SRL is described as the original rubber-lined slurry pump, built for tough services with maximum reliability and ease of maintenance.

Available models include:

• Goulds SRL: Rubber-lined horizontal slurry pumps with open impellers, suitable for abrasive and corrosive applications, including those with air or froth.
• Goulds SRL-C: Rubber-lined horizontal slurry pumps with closed impellers, designed for very abrasive slurries with high concentrations of solids.
• Goulds SRL-XT: Features extra-thick rubber components (up to three times thicker than standard) for the most severe and abrasive applications, especially with coarser slurries.
• Goulds SRL-S Shearpeller®: Designed for applications with entrained air, froth, and stringy solids, featuring a unique tapered radial vane design.

Operating limits

General Performance (SRL 16x14-34 High Pressure Tailings):

• Capacities to 20,000 GPM (4,542 m³/h)
• Heads to 164 feet (50 m)
• Temperatures to 250˚ F (121˚ C)
• Pressures to 500 psig (3,447 kPa)

SRL Heavy-Duty Slurry Pumps (Open Impeller):

• Sizes: 2–6 inches (50–150 mm)
• Flows to: 1,500 GPM (341 m³/h)
• Heads to: 135 feet (41 m)
• Solids to: 1/8 inch (3.2 mm)
• Pressures to: 232 psig (1,600 kPa)

SRL-C Heavy-Duty Slurry Pumps (Closed Impeller):

• Sizes: 3–20 inches (75 mm–500 mm)
• Flows to: 20,000 GPM (4,542 m³/h)
• Heads to: 164 feet (50 m)
• Solids to: ¼ inch (6.4 mm)
• Pressures to: 500 psig (3,447 kPa)

SRL-XT (Extra-Thick Rubber):

• Sizes: 6–12 inches (150–300 mm)
• Flows to: 10,000 GPM (2,270 m³/h)
• Heads to: 140 feet (42 m)
• Solids to: ½ inch (13 mm)
• Pressures to: 250 psig (1,725 kPa)

Elastomer Selections and Application Guide:

• Natural Rubber:
  • Hardness: 40 Durometer Shore A
  • Temperature Maximum: 154°F (68°C)
  • pH Range: 4.5–12
• Natural Rubber (Soft):
  • Hardness: 36 Durometer Shore A
  • Temperature Maximum: 150°F (66°C)
  • pH Range: 4.5–12
• Natural Rubber (Hard):
  • Hardness: 50 Durometer Shore A
  • Temperature Maximum: 180°F (82°C)
  • pH Range: 4.5–12
• Neoprene:
  • Hardness: 60 Durometer Shore A
  • Temperature Maximum: 212°F (100°C)
  • pH Range: 3.0–12
• Nitrile (60):
  • Hardness: 60 Durometer Shore A
  • Temperature Maximum: 220°F (105°C)
  • pH Range: 3.5–12
• Chlorobutyl:
  • Hardness: 50 Durometer Shore A
  • Temperature Maximum: 250°F (121°C)
  • pH Range: 1.0–12
• Hypalon®:
  • Hardness: 55 Durometer Shore A
  • Temperature Maximum: 230°F (110°C)
  • pH Range: <1.0–14
• Urethane:
  • Hardness: 81 Durometer Shore A
  • Temperature Maximum: 149°F (65°C)
  • pH Range: 3.0–11
• Urethane (Hi-Temp):
  • Hardness: 83 Durometer Shore A
  • Temperature Maximum: 212°F (100°C)
  • pH Range: 3.0–11

Maximum Working Pressure and Weight by Model:

• SRL 2×2–10: 75 PSI (517 kPa), 380 Lbs. (172 Kg.)
• SRL 3×3–10: 105 PSI (724 kPa), 500 Lbs. (227 Kg.)
• SRL 5×5–14: 125 PSI (862 kPa), 1000 Lbs. (436 Kg.)
• SRL 6×6–15: 140 PSI (965 kPa), 1300 Lbs. (590 Kg.)
• SRL-C 3×3–10: 225 PSI (1551 kPa), 650 Lbs. (295 Kg.)
• SRL-C 5×4–14: 250 PSI (1724 kPa), 1100 Lbs. (499 Kg.)
• SRL-C 8×6–18: 400 PSI (2758 kPa), 2850 Lbs. (1293 Kg.)
• SRL-C 10×8–21: 500 PSI (3447 kPa), 3400 Lbs. (1542 Kg.)
• SRL-C 12×10–25: 500 PSI (3447 kPa), 4300 Lbs. (1950 Kg.)
• SRL-C 14×12–29: 500 PSI (3447 kPa), 6700 Lbs. (3039 Kg.)
• SRL-C 16×14–34: 500 PSI (3447 kPa), 9100 Lbs. (4127 Kg.)
• SRL-C 20×18–40: 500 PSI (3447 kPa), 15300 Lbs. (6938 Kg.)
• SRL-XT 6×6–21: 250 PSI (1724 kPa), 3450 Lbs. (1565 Kg.)
• SRL-XT 8×8–25: 250 PSI (1724 kPa), 4900 Lbs. (2222 Kg.)
• SRL-XT 10×10–28: 250 PSI (1724 kPa), 7550 Lbs. (3424 Kg.)
• SRL-XT 16×14–36: 250 PSI (1724 kPa), 10420 Lbs. (4725 Kg.)

Feed water

The pumps are designed for abrasive and corrosive slurry services.

• SRL (Open Impeller): Typically used for slurries containing solids up to a nominal 1/8 inch (3.2 mm) in diameter.
• SRL-C (Closed Impeller): Typically used for slurries containing solids up to ¼ inch (6.4 mm) in diameter and heavy concentrations of solids.
• SRL-XT: Ideal for coarser slurries, handling solids up to ½ inch (13 mm).
• SRL-S Shearpeller®: Provides solutions for applications with entrained air, froth (up to a froth factor of 2.5), and stringy solids.

Mechanical / hydraulic

General Design Features:

• Large-Diameter Impeller: Develops higher heads at lower operating speeds. Available in open and closed designs, with a variety of elastomers and metal alloys. Shearpeller® option for stringy and froth-laden slurries.
• Field-Replaceable Liners: Precision molded and bonded to a metal skeleton. FRP volute support to resist collapse on sizes > 8 inches (200 mm). Extra-thick rubber design for severe duties.
• Heavy-Duty Mechanical Design: Large-diameter shaft for low deflection and longer life. Oil-lubricated cartridge bearing assembly with heavy-duty bearings for reliability and long life.
• Gland Seal Options: Standard- and low-dilution seal water or mechanical seal. Replaceable XH-800 shaft sleeve for maximum life.

Bearing Assembly:

• Cartridge design
• Precision machined cast iron bearing housing
• Large diameter AISI 1045 steel shaft
• Heavy-duty anti-friction bearings
• Minimum 5-year bearing L10 life
• Oil lubrication
• Grease packed labyrinth and lip seals
• External oil level sight gauges on both sides

Shaft Sleeve:

• Hard Ni-Cr-coated XH-800 alloy sleeve
• 64 Rockwell C coating will not chip or crack
• Ground 6-8 RMS surface finish
• 316 SS base alloy for corrosion resistance
• Special alloys available

Suction Wearplate Liner:

• Standard on SRL-XT models and SRL-C pumps with discharges 6 inches (150 mm) and larger.
• Quick replacement of wear parts, reduced downtime and replacement cost.
• Choice of elastomers and polyurethanes.
• Optional Ceramic-Rubber Media (CRM) wearplate available.

Ceramic-Rubber Media (CRM) Liners:

• Proprietary process to locate and mold ceramic rods into the rubber liner for optimum combination of hardness and resilience, extending wear life.

Rubber Liners:

• Utilizes a soft natural rubber blend for resilience and tear resistance.
• Wide variety of natural and synthetic rubbers and polymers in a range of hardnesses.

FRP and Rubber Composite Hybrid Liners:

• Molded to a metal skeleton and bolted to the casing.
• Fiberglass (FRP) shell molded to casing liners for added support on pump sizes 12×10–25 SRL-C and larger, resisting collapse and improving fit.

SRL Heavy-Duty Slurry Pumps (Open Impeller) Specific Features:

• Precision-molded, thick bolt-in liners for long life and secure assembly.
• Large-diameter semi-open impeller for low speeds and extended wear life.
• Axially adjustable bearing assembly to maintain peak operating efficiency and life.
• Short, rigid shaft and heavy-duty bearings for low deflections and reliable service.
• Packed gland option or mechanical seal for standard, low, or no dilution arrangements.
• Precision-machined cast iron frame for sturdy, vibration-free support.
• Five discharge positions available for most piping arrangements.

SRL-C Heavy-Duty Slurry Pumps (Closed Impeller) Specific Features:

• High-efficiency design for very low power costs.
• Proven hydraulics for extended parts wear life.
• Thick bolt-in liners for positive assembly and extended life.
• Large liners reinforced with a fiberglass shell to resist liner collapse.
• Large-diameter closed impeller for lower speeds and extended wear life.
• Replaceable suction wearplate available on 6 inch (150 mm) and larger pumps.
• Axially adjustable bearing assembly.
• Short, rigid shaft and heavy-duty bearings.
• Packed gland option or mechanical seal.
• Precision-machined cast iron frame.
• Five discharge positions available.

SRL-XT Specific Features:

• Rubber up to three times the conventional thickness for improved abrasion resistance and longer wear life.
• Precision molding of rubber-to-metal skeletons, bolted-in liners for greater dimensional accuracy and easy replacement.
• Tongue-and-groove fit between casing halves and liners for positive locking.
• Front removal of suction wearplate for inspection and ease of replacement without disturbing discharge.
• Large ACME impeller threads for quick, easy impeller removal.
• Impeller release collar to relieve pressure on impeller for easy removal.
• Heavy-duty oil lubricated bearing cartridge with labyrinth style seals.
• External impeller adjustment to maintain peak operating efficiency.
• Packed gland or mechanical seal options (standard full flush, low, or no dilution).
• Free-standing pump with rugged cast iron pedestal for direct mounting on concrete foundations.

SRL-S Shearpeller® Specific Features:

• Innovative patented design to successfully handle large stringy solids.
• Unique tapered radial vane design to handle a froth factor of up to 2.5 without oversizing the pump.
• Very effective in handling entrained air without air binding.
• Completely interchangeable with standard models.

Dimensions: See the official PDF for exact tabulated values and diagrams.

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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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