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Atlantic L-Series Pumps

SKU: 73897
$1,731.99
Model

High-Volume Direct Drive Axial Pumps

Atlantic L-Series Direct Drive Axial Pumps economically deliver very high volumes of water at low head through large diameter plumbing for wide waterfalls or where massive flows are required. Engineered with heavy-duty cast iron and stainless steel housing, these professional-grade pumps feature 3-inch male threaded outlets for ease in plumbing large diameter tubing, ensuring years of dependable service in demanding commercial and large residential applications.

Professional-Grade Construction

Dual drive bearings and double silicone carbide mechanical seals reduce friction and wear, prolonging motor life and ensuring reliable operation season after season. Thermal overload protection shuts down the pump in low water conditions to prevent serious damage due to overheating, protecting your investment and extending pump lifespan.

Available Models

L-305 (11,400 GPH)

  • Motor: 0.50 HP
  • Voltage: 115 volts
  • Amperage: 8.0 amps
  • Maximum Flow: 11,400 GPH
  • Outlet: 3" MPT (male pipe thread)
  • Power Cord: 30 feet
  • Weight: 60 lbs (estimated 54.8 lbs shipping)
  • Dimensions: 9"L × 9"W × 19.25"H
  • Warranty: 2 years
  • SKU: 73897

L-310 (14,200 GPH)

  • Motor: 1 HP
  • Voltage: 115 volts
  • Amperage: 10 amps
  • Maximum Flow: 14,200 GPH
  • Outlet: 3" MPT (male pipe thread)
  • Power Cord: 30 feet
  • Weight: 65 lbs (estimated 56.8 lbs shipping)
  • Dimensions: 9"L × 9"W × 19.25"H
  • Warranty: 2 years
  • SKU: 73898

Key Features

  • High-Volume Output: 11,400-14,200 GPH for massive water features
  • Direct Drive Axial Design: Economical high-volume delivery at low head
  • 3-Inch Outlets: Male threaded for large diameter plumbing
  • Heavy-Duty Construction: Cast iron and stainless steel housing
  • Dual Drive Bearings: Reduces friction and extends motor life
  • Double Mechanical Seals: Silicone carbide seals minimize wear
  • Thermal Overload Protection: Prevents damage from overheating
  • 30-Foot Power Cord: Provides placement flexibility
  • Professional Grade: Built for commercial and large residential applications
  • 2-Year Warranty: Backed by Atlantic's quality assurance

Applications

Ideal for wide waterfalls, large ponds, commercial water features, massive pondless waterfalls, extensive stream systems, and any installation requiring very high water volumes at low to moderate head heights. Perfect for professional pond installations, commercial landscapes, and large residential water features where massive flow is essential.

Direct Drive Axial Technology

Direct drive axial pumps excel at moving massive volumes of water efficiently at lower head heights. Unlike centrifugal pumps that lose efficiency at high flows, axial pumps maintain strong performance when delivering thousands of gallons per hour through large diameter plumbing. This makes them ideal for wide waterfalls and applications where volume matters more than vertical lift.

Frequently Asked Questions

Q: Which L-Series pump do I need?
A: The L-305 delivers 11,400 GPH with a 0.50 HP motor, while the L-310 provides 14,200 GPH with a 1 HP motor. Choose based on your required flow rate and waterfall width.

Q: What does "low head" mean?
A: "Head" is the vertical distance water must be pumped. L-Series pumps are optimized for high volume at lower head heights (typically under 10 feet). For higher lifts, consider centrifugal pumps.

Q: What size plumbing do I need?
A: Both models feature 3" male pipe thread (MPT) outlets. Use 3" or larger diameter tubing to take full advantage of the pump's high-volume capacity. Smaller tubing will restrict flow.

Q: Can I use these pumps in a pond?
A: Yes, L-Series pumps are submersible and designed for pond installations. Ensure adequate water depth and proper placement to prevent debris intake.

Q: What is thermal overload protection?
A: If the pump runs dry or water levels drop too low, the motor can overheat. Thermal overload protection automatically shuts down the pump to prevent damage, then allows restart once cooled.

Q: How much power do these pumps use?
A: The L-305 draws 8.0 amps at 115 volts, while the L-310 draws 10 amps at 115 volts. Both run on standard household current but require dedicated circuits due to their amperage.

Q: What are silicone carbide mechanical seals?
A: Silicone carbide is an extremely hard, wear-resistant material used in the pump's mechanical seals. Double seals provide redundancy and extend pump life by minimizing friction and wear.

Q: Can I run these pumps continuously?
A: Yes, L-Series pumps are designed for continuous operation in pond and waterfall applications. Ensure proper water levels and periodic maintenance for best results.

Q: What maintenance do these pumps require?
A: Periodically inspect the pump for debris, check the impeller for obstructions, and ensure proper water levels. The robust construction minimizes maintenance requirements.

Q: What is covered under the 2-year warranty?
A: The 2-year warranty covers manufacturing defects and material failures under normal use. Consult your warranty documentation for complete terms and conditions.