Blog

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.

Model Comparison Chart

Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.