The 493 Series™ internal gear pump is the ideal solution for compressor lubrication, fuels, and lube oils due to its high speed operation and ability to withstand high working pressures. It can handle flows up to 75 GPM (17 m³/h).
Features & Benefits
- Close coupled to fit tight space constraints with vertical mount options for reduced unit footprint
- High speed operation for economical steel pump offering
- High working pressures for compressor lubrication applications
- Class 300 flanges standard on all sizes and models
Capacity
to 75 GPM
to 17 m³/h
Viscosity
28 to 15,000 SSU
1 to 3,300 cSt
Pressure
to 250 PSI
to 17 Bar
Temperature
0 to +350 °F
-20 to +175 °C
Options
Porting
Drives
Mounting
Sealing
Specifications
Model | Standard Port Size | Nominal Capacity at Maximum Rated Speed GPM (60hz) | Nominal Capacity at Maximum Rated Speed RPM (60hz) | Nominal Capacity at Maximum Rated Speed m3/h (50hz) | Maximum RPM (50hz) | Maximum Pressure PSI | Maximum Pressure BAR |
---|---|---|---|---|---|---|---|
GG493 | 1 | 10 | 1800 | 3 | 1500 | 250 | 17 |
HJ493 | 1.5 | 20 | 1800 | 4.5 | 1500 | 250 | 17 |
HL493 | 1.5 | 30 | 1800 | 7 | 1500 | 250 | 17 |
AS493 | 3 | 35 | 1200 | 8 | 1000 | 250 | 17 |
AK493 | 3 | 50 | 1200 | 11 | 1000 | 250 | 17 |
AL493 | 3 | 75 | 1200 | 17 | 1000 | 250 | 17 |
Photos
Videos

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.

Diesel (#2 Fuel Oil)
Diesel is distilled from petroleum and is typically used in heavy equipment as fuel. While it is thin diesel is somewhat lubricating. It is typically handled in a bulk transfer application or on back-up generator skids.

Refined Fuels
Refined fuels would include petroleum based fuel oils and some Jet Fuels. Their viscosity and temperature handled can vary greatly. Normally these are handled in bulk transfer operations.

Biofuels
Biofuels include Biodiesel and Ethanol. These are fuels made from renewable resources and typically blended with refined fuels as additives.