The 4227AA Series™ internal gear pump is the ideal solution for your oil and gas applications. This stainless steel option has 4 bolt mount API 682 cartridge seals with minor clarifications to the API 676 standard. It can handle flows up to 1,600 GPM (363 m³/h).
Features & Benefits
- Internal gear pumps are rotary positive displacement pumps which move the same amount of fluid with each revolution of the shaft
- Flow rate is directly proportional on the speed, which enables easy control over the entire performance range using variable speed drives
- System pressure has minimal impact on flow rate making this an excellent solution for continuous processes where multiple streams are metered together
Capacity
to 1,600 GPM
to 363 m³/h
Viscosity
28 to 2,000,000 SSU
0.1 to 440,000 cSt
Pressure
to 150 PSI
to 10 BAR
Temperature
-120°F to +800°F
-85°C to +430°C
Options
Porting
Drives
Mounting
Sealing
Specifications
Model | Standard Port Size | Nominal Capacity at Maximum Speed GPM | Nominal Capacity at Maximum Speed m³/h | Maximum Speed RPM | Maximum Pressure PSI | Maximum Pressure BAR |
---|---|---|---|---|---|---|
H4227AA | 1.5 | 10 | 1.9 | 1150 | 150 | 10 |
HL4227AA | 1.5 | 20 | 3.7 | 1150 | 150 | 10 |
K4227AA | 2 | 50 | 11 | 520 | 150 | 10 |
KK4227AA | 2 | 65 | 15 | 520 | 150 | 10 |
LQ4227AA | 2.5 | 100 | 23 | 520 | 150 | 10 |
LL4227AA | 3 | 135 | 31 | 520 | 150 | 10 |
LS4227AA | 3 | 160 | 36 | 520 | 150 | 10 |
Q4227AA | 4 | 200 | 45 | 350 | 150 | 10 |
QS4227AA | 6 | 320 | 73 | 350 | 150 | 10 |
Photos

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.

Lube Oil (Machinery Lubrication)
Machinery lubrication pumps are used in everything from small backup generators to naval ships. Lube oils, as the name implies, are the liquids used to lubricate rotating and reciprocating machinery. Lube oils may be handled at higher pressures to ensure their penetration of the equipment.

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.

Molten Sulfur
Molten Sulfur is a difficult to pump liquid due to the very narrow temperature range that it can be handled. Molten Sulfur is typically solid up to 240°F, and then re-solidifies again around 370°F. The suggested handling range is 270°F - 310°F, where the viscosity is 6 - 9 cP. The pump needs a source of heat like jacketing or electric heat to prevent the product from solidifying in the pump.

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.

Resins
Resins are high viscosity liquids with potentially shear sensitive (thinning) components, and made up of solvents, waxes, surfactants, and semi-solid resin particles all with various chemical compatibility concerns. These resins can be used in polyurethanes, epoxies and other adhesives. In some cases, resins contain pigments that bring with them abrasive wear concerns.

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.