1GD Submersible Grinder Pump

The Goulds Water Technology 1GD Dual Seal Submersible Grinder Pumps with optional seal sensor have a silicon bronze, multi-vane semi-open impeller with pump-out vanes for mechanical seal protection. The 1GD has a anti-roping design, where hardened cutter is keyed to the motor shaft for positive drive. The 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 normalwastewater. The 1GD is constructed of a heavy duty cast iron, volute type casing for maximum efficiency, and has stainless steel shaft and fasteners. The dual seals are silicon carbide vs. silicon carbide outer seal and ceramic vs. carbon inner seal, stainless steel metal parts, BUNA-N elastomers. Upper and shaft seals are positioned independently and are separated by an oil-filled chamber. Optional Silicon/Tungsten Carbide outer seal available. The optional seal sensor cord is located in an 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. Fasteners and Pipe Plugs are 300 series stainless steel. Uses A10-12 guide rail system for ease of installation and maintenance. Single phase pumps now have built-in overload protection. See control panel note on page 3 of the technical brochure.The 1GD is designed for high head sewage applications where a gravity system is not practical and is ideal for pressure sewage systems.