Goulds 1GD51G3AA, 1GD Series, Grinder Pump, 2 HP, 230 Volts, 3 Phase, 1-1/4" NPT Removable Flange, 46 GPM Max, 106 ft Max Head, 20 ft Cord

SKU #: 1GD51G3AA
Brand: Goulds
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 LIST PRICE 4,104.10
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FEATURES

Goulds 1GD Dual Seal Submersible Grinder Pump

This pump is capable of grinding domestic and commercial raw sewage with a maximum solid capability of 3 inches in size. It is designed for high head sewage applications where a gravity system is not practical. Ideal for pressure sewage systems.

Features

  • Silicon bronze, multi-vane semi-open impeller, with pump-out vanes for mechanical seal protection
  • Grinder cutter system with anti-roping design, hardened cutter is keyed to the motor shaft for positive drive
  • Cutter ring is specially designed to be reversed when the first side wears out thus doubling its life and reducing maintenance costs. The cutter system is designed and tested to pass items found in normal wastewater
  • Heavy duty cast iron, volute type for maximum efficiency
  • Dual mechanical seals with silicon carbide vs. silicon carbide outer seal and ceramic vs. carbon inner seal, stainless steel metal parts, BUNA-N elastomers
  • Optional seal sensor probe located in oil-filled chamber. If pumpage should begin to leak past lower seal it indicates to pump control panel a fault has occurred. Requires optional seal fail circuit in the control panel
  • Stainless steel shaft and fasteners
  • Motor is rated for continuous duty fully submerged
  • Start capacitor, run capacitor and starting relay are required and will be located in the control panel
BrandGoulds
Mfg. Number1GD51G3AA
Product TypeGrinder pump
Series1GD
ApplicationPressure sewage
Horsepower2 HP
Voltage230 Volts
Phase3
Pump CasingCast Iron
Frequency60 Hz
Speed3450 RPM
Discharge Connection1-1/4" NPT removable flange
Impeller Design Multi vane, semi-open
Impeller MaterialCast Bronze
Motor DesignNEMA 56 frame
Maximum Total Head106 ft
Motor InsulationClass F
Maximum Flow46 GPM
Maximum Temperature (Intermittent)140°F
Shaft Seal LowerSilicon Carbide/BUNA/300 SS
Power Cord Length20 ft
Shaft Seal UpperCarbon/Ceramic/BUNA/300 SS
Maximum Current12.0 Amps
Overload ProtectionControl panel required
Locked Rotor Current37.4 Amps
Maximum Working Pressure50 PSI
Maximum Temperature (Continuous)104°F


The Goulds 1GD series Grinder Pumps are a premium series designed for high head sewage applications where a gravity system is not practical, as well as pressure sewage applications. The Goulds 1GD series can handle solids up to 3" in diameter. The cutting system is of an anti-roping design in which the hardened cutter is keyed to the motor shaft for positive drive. The cutter ring is designed for reversal when the first side of the ring wears out, doubling its lifespan and reducing maintenance costs. The cutting system has been tested to pass items found in normal wastewater. The cutting system is paired with a silicon bronze semi-open multi-vane impeller. The impeller includes pump out vanes for mechanical seal protection. The volute is cast iron and adaptable for the A10-12 guide rail system for ease of installation. A key feature of the 1GD series is the dual mechanical seals with a silicon carbide vs. silicon carbide outer seal and a ceramic vs. carbon inner seal. An optional seal sensor probe indicates potential leakage to the control panel (requires optional seal fail circuit in the panel). The motor is fully submerged in an oil-filled chamber surrounded by high grade turbine oil for efficient heat dissipation, lubrication and protection. The pump is rated for continuous duty when fully submerged, but can be run dry without damaging the components (see operation guidelines below). The sever duty rated, oil and water resistant power cable includes an epoxy seal on the motor end to provide a secondary moisture barrier in case of outer jacket damage, as well as to prevent oil wicking. Please note that these Grinder Pumps require a magnetic contactor, start and run capacitor and a starting relay in the control panel.

GOULDS 1GD SERIES GRINDER PUMPS

Model Comparison Chart

Model Discharge HP Voltage Phase GPM Max. Head Cord
1GD51G3AA 1-1/4" NPT Removable Flange 2 230 3 46 106' 20'
1GD51G4AA 1-1/4" NPT Removable Flange 2 460 3 46 106' 20'
1GD51G2AA 1-1/4" NPT Removable Flange 2 200 3 46 106' 20'
1GD51G1AA 1-1/4" NPT Removable Flange 2 230 1 46 106' 20'
1GD51G8AA 1-1/4" NPT Removable Flange 2 208 1 46 106' 20'
PERFORMANCE CURVE

REPAIR PARTS

TYPICAL PLUMBING AND INSTALLATION

MATERIALS

DIMENSIONS

APPLICATION AND OPERATION DATA

NOMENCLATURE

TECHNICAL BROCHURE
Goulds 1GD Grinder Pump Technical Brochure
INSTALLATION MANUAL
Goulds 1GD Grinder Pump Installation Manual
REPAIR PARTS
Goulds 1GD Grinder Pump Repair Parts
CURVES
Goulds 1GD Grinder Pump Curves

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*Note: Picture is illustrative and may not reflect the actual product.*