The 4223AX Series™ internal gear pump is the ideal solution for crude oils (light, heavy, and sour), fuel oils, petrochemicals, and more. It comes with API 682 Category 1, 2 or 3 cartridge seals with optional API seal support plans.
Features & Benefits
- Conforms fully to API 676 3rd Edition, NO EXCEPTIONS
- API 682 Category 1, 2 or 3 cartridge seals with optional API seal support plans
- Normalized and tempered steel casting construction
Capacity
to 500 GPM
to 114 m³/h
Viscosity
28 to 35,000 SSU
1 to 7,700 cSt
Pressure
to 200 PSI
to 14 Bar
Temperature
-20 to +400 °F
-29 to +205 °C
Options
Porting
Drives
Mounting
Sealing
Specifications
Model | Standard Port Size | Nominal Pump Rating GPM | Nominal Pump Rating m³/h | Maximum RPM | Maximum Pressure PSI | Maximum Pressure BAR |
---|---|---|---|---|---|---|
HL4223AX | 1.5 | 30 | 6.8 | 1750 | 200 | 14 |
KK4223AX | 2 | 100 | 23 | 780 | 200 | 14 |
LS4223AX | 3 | 200 | 45 | 640 | 200 | 14 |
Q4223AX | 4 | 300 | 68 | 520 | 200 | 14 |
QS4223AX | 6 | 500 | 113 | 520 | 200 | 14 |
Photos
Videos

Solvents
The wide range of viscosity of various solvents plays a key role in determining the best pump for handling the application. Pump construction will ultimately be driven by the specific liquid being handled and the construction that offers the greatest chemical resistance and is the most viscosity appropriate.

Wax
Waxes can be natural secretions of plants or animals, such as beeswax, or by-products of petroleum refining. Wax is commonly used in the paper and boxboard industries to make products such as cartons and paper packaging moisture resistant. Wax can also help prevent food products from sticking to paper packaging.

Crude Oils
This is a very generic term for unrefined oils typically being recovered from the ground. Some crude oil may contain particulates from the oil well or recovery method. They are considered to be flammable liquids. Crude oils are later refined and used for everything from making plastics to gasoline.

Asphalt Cement
Clean asphalt contains no fillers and is an oil based liquid. It is primarily used in paving roads, waterproofing liquids, and paints. Typically they are handled at elevated temperatures to reduce the viscosity of the asphalt. The pump needs a source of heat like jacketing or electric heat to prevent the product from solidifying in the pump.

Filled Asphalt
Filled asphalts contain particulate used in the liquids’ end applications. Examples of this would be roofing materials and hot mix plants. Typically they are handled at elevated temperatures to reduce the viscosity of the asphalt mixture. The pump needs a source of heat like jacketing or electric heat to prevent the product from solidifying in the pump.