Goulds 1GD51G1AA Submersible Grinder Pump – 2 HP, Single Phase, 230V

The Goulds 1GD51G1AA is a 2 HP submersible grinder pump built to reduce municipal, commercial, and industrial sewage solids into a fine slurry that can be pumped through small-diameter discharge piping. It runs on 230V, single phase, 60Hz power. The pump is UL778 and CSA 22.2 No. 108 tested.

• Horsepower: 2 HP
• Phase: Single Phase
• Voltage: 230V, 60Hz, 3450 RPM
• Maximum Amps: 15.5 A
• Locked Rotor Amps: 96.0 A
• Discharge: 1-1/4" NPT, removable flange
• Solids Handling: 3" max spherical solids
• Shipping Weight: 110 lbs
• Power Cord: 20 ft, 14/4 STOW
• Maximum Submergence: 50 ft
• Maximum Working Pressure: 50 PSI
• Temperature Rating: 104°F continuous / 140°F intermittent
• Control Panel: S1GD2 (simplex) / D1GD2 (duplex)
• Guide Rail: A10-12
• Certification: UL778 and CSA 22.2 No. 108 tested

Construction & Features:

• Impeller: Semi-open, multi-vane, with pump-out vanes on back shroud, dynamically balanced; material: Silicon bronze, ASTM C87600
• Cutter System: Two-blade, anti-roping design, keyed to motor shaft, reversible cutter ring; material: 440C stainless steel
• Casing: Heavy duty cast iron, volute type, ASTM A48 Class 30
• Shaft: AISI 300 series stainless steel, keyed
• Motor: NEMA 56 frame, oil-filled, Class F insulation
• Mechanical Seal: Upper: Carbon/Ceramic, BUNA-N; Lower: Silicon Carbide/Silicon Carbide, BUNA-N; 300 series SS metal parts
• Overload Protection: Single phase: built-in, automatic-reset, on-winding overload. Requires external capacitor pack, starting relay, and magnetic contactor in a control panel.

Applications: Municipal, commercial, and industrial low-pressure sewage grinder systems where solids must be reduced to pass through small-diameter force main piping.