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
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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
Instructions For Changing A Grinder Pump Cutter-Cutter Ring Installation-Operation Manual.pdf
1GD Grinder Pump Curve.pdf
Submersible Grinder Pump-Dual Seal with Optional Seal Sensor Probe Technical Brochure.pdf
Grinder_Pumps_Single_and_Three_Phase_Installation-Operation_Manual.pdf
Sump_Effluent_and_Sewage_Pump_Repair_Parts.pdf
Brand | Goulds |
Mfg. Number | 1GD51G3AA |
Product Type | Grinder pump |
Series | 1GD |
Application | Pressure sewage |
Horsepower | 2 HP |
Voltage | 230 Volts |
Phase | 3 |
Pump Casing | Cast Iron |
Frequency | 60 Hz |
Speed | 3450 RPM |
Discharge Connection | 1-1/4" NPT removable flange |
Impeller Design | Multi vane, semi-open |
Impeller Material | Cast Bronze |
Motor Design | NEMA 56 frame |
Maximum Total Head | 106 ft |
Motor Insulation | Class F |
Maximum Flow | 46 GPM |
Maximum Temperature (Intermittent) | 140°F |
Shaft Seal Lower | Silicon Carbide/BUNA/300 SS |
Power Cord Length | 20 ft |
Shaft Seal Upper | Carbon/Ceramic/BUNA/300 SS |
Maximum Current | 12.0 Amps |
Overload Protection | Control panel required |
Locked Rotor Current | 37.4 Amps |
Maximum Working Pressure | 50 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.*