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GPI

GPI, originally Great Plains Industries, is a manufacturer of fluid transfer and measurement equipment with a product history spanning several decades. The brand's catalog centers on fuel transfer pumps, flowmeters, and related accessories for handling petroleum-based fuels, diesel exhaust fluid (DEF), oils, coolants, and select chemicals. GPI products are commonly specified in applications where fluid movement and volume totalization must be performed reliably at the point of use, such as drum and tank dispensing, mobile refueling, and small-scale process transfer.

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About GPI

GPI, originally Great Plains Industries, is a manufacturer of fluid transfer and measurement equipment with a product history spanning several decades. The brand's catalog centers on fuel transfer pumps, flowmeters, and related accessories for handling petroleum-based fuels, diesel exhaust fluid (DEF), oils, coolants, and select chemicals. GPI products are commonly specified in applications where fluid movement and volume totalization must be performed reliably at the point of use, such as drum and tank dispensing, mobile refueling, and small-scale process transfer.

The product families supplied by 3G Electric include inline turbine totalizers, rotary-action manual pumps, electric gear drum pumps, and replacement seal kits. GPI turbine totalizers are available with 1-inch NPT or FNPT connections, nylon rotors, and LCD displays that totalize in gallons; flow ranges span from 0.3 gpm to 3 gpm on the lower end, with commercial-grade models offering +/-1.5% accuracy and 4-20 mA output for integration with monitoring or control systems. Rotary-action manual fuel transfer pumps deliver 12.8 oz per stroke and include a hose, manual aluminum nozzle, and bung for drum mounting; the pump body is aluminum with Buna-N seals and a plastic suction tube. Electric gear drum pumps in the line cover 12 V DC and 115 V AC power, with motor ratings of 1/4 hp to 2/5 hp, flow rates from 5 gpm to 12 gpm, and viscosity handling up to 450 cps depending on model. Suction tubes and pump bodies are available in polypropylene or polyethylene for compatibility with different fluids. Replacement seal kits are offered for specific pump series, including M-3130, PRO20-115, and PRO35-115/QM, with manufacturer part numbers such as 133503-1 and 133504-1.

3G Electric supplies GPI equipment as individual SKUs with datasheets and logistics support for global delivery. The catalog includes flowmeters, pumps, and service parts, allowing procurement and maintenance teams to source complete assemblies or replacement components from a single channel. Because GPI products are used across fuel depots, fleet maintenance facilities, agricultural operations, and industrial plants, 3G Electric maintains multiple SKUs to cover different connection sizes, power supplies, flow capacities, and viscosity ranges. Technical buyers can reference manufacturer part numbers and specifications when selecting a model for a given fluid type, flow requirement, or mounting configuration. For ongoing maintenance, seal kits and replacement components are stocked to reduce downtime when pumps or meters require service.

Common Applications

  • Fleet maintenance — GPI inline turbine totalizers (SKU 825KT1) for measuring fuel dispensed to vehicles from drums or small tanks.
  • Agricultural operations — GPI rotary-action manual fuel transfer pump (SKU 38H341) for dispensing diesel from drums without electrical power.
  • Industrial plants — GPI electric gear drum pumps (SKU 6XGP5) for transferring oils and coolants up to 450 cps from drums.
  • Fuel depots — GPI commercial-grade turbine totalizer (SKU 61CV12) with 4-20 mA output for remote flow monitoring.
  • DEF handling — GPI replacement seal kits (133503-1, 133504-1) for servicing PRO20-115 and PRO35-115/QM transfer pumps.
  • Chemical transfer — GPI 12 V DC gear drum pump (SKU 907DF4) for low-viscosity fluids up to 50 SUS from drums or containers.

Frequently asked questions

Common questions about GPI from 3G Electric.

What is the flow range of GPI inline turbine totalizers for fuels?

GPI inline turbine totalizers for fuels are available in multiple flow ranges. The SKU 825KT1 model (MPN A1Q9GMA025NA1) covers 0.3 gpm to 3 gpm with a 1-inch NPT connection and an LCD display that totalizes in gallons. The commercial-grade SKU 61CV12 offers a 1-inch FNPT connection, +/-1.5% accuracy, and a 4-20 mA output for remote monitoring or control integration. Selection depends on the expected flow rate, connection type, and whether an analog output is required. Both models use a nylon rotor and are intended for inline measurement of fuel flow.

Which GPI pump models are compatible with the replacement seal kits 133503-1 and 133504-1?

The GPI shaft seal kit with manufacturer part number 133503-1 is compatible with the M-3130 series and the PRO35-115/QM model. The GPI replacement seal kit with manufacturer part number 133504-1 is compatible with the PRO20-115 series and the PRO35-115/QM model. These kits contain the seals and gaskets needed to service the rotating shaft area and maintain pump integrity. When ordering, confirm the pump series and model number against the kit's compatibility list to ensure the correct replacement parts are supplied.

What are the power and flow specifications for GPI electric gear drum pumps?

GPI electric gear drum pumps in the 3G Electric catalog include 12 V DC and 115 V AC models. The 12 V DC model (SKU 907DF4, MPN 142100-04) uses a 2/5 hp motor, delivers 5 gpm, and handles fluids up to 50 SUS maximum viscosity with a polypropylene suction tube. The 115 V AC models include SKU 6XGP4 (MPN PA-120H-2UR) with a 1/4 hp motor, 12 gpm flow, and 10 cps maximum viscosity, and SKU 6XGP5 (MPN PA-200H-2UR) with a 1/4 hp motor, 8 gpm flow, and 450 cps maximum viscosity. Pump bodies are polyethylene on the AC models.

What is included with the GPI rotary-action manual fuel transfer pump?

The GPI rotary-action manual fuel transfer pump (SKU 38H341) is supplied as a pump with hose and nozzle, and includes a bung for secure drum mounting. It delivers a maximum flow rate of 12.8 oz per stroke. The pump body is constructed of aluminum, and the nozzle is a manual aluminum type. Seals are Buna-N, and the suction tube is plastic. This configuration is intended for manual dispensing from drums where electrical power is not available or not desired. The included hose and nozzle allow direct connection to the drum and dispensing point.

Can GPI turbine totalizers output a signal for remote monitoring?

Yes, the GPI commercial-grade inline turbine totalizer (SKU 61CV12) provides a 4-20 mA output, which can be used to transmit flow rate or totalized volume to remote monitoring or control equipment. It also has a digital display for local reading. The SKU 825KT1 model includes an LCD display that totalizes in gallons but does not list an analog output in its specifications. When selecting a totalizer for integration with a PLC, SCADA, or data logger, verify the output type and signal range required by the receiving system.

What fluids can GPI gear drum pumps handle?

GPI gear drum pumps are designed for transferring low- to medium-viscosity fluids from drums or containers. The 12 V DC model (SKU 907DF4) handles fluids up to 50 SUS maximum viscosity. The 115 V AC models cover up to 10 cps (SKU 6XGP4) and up to 450 cps (SKU 6XGP5). Typical fluids include oils, coolants, and chemicals, as well as fuels and DEF in compatible pump configurations. Suction tube and pump body materials vary by model, with polypropylene and polyethylene options available. Always confirm chemical compatibility between the fluid and the wetted materials before use.