Product Description
Viking Pump - Model AK4195 - Cast Iron Gear Pump - 4-1915-2231-563
Pump Construction and Capabilities:
| Port Size | 2.5" |
| Port Type | NPT |
| Port Orientation | Opposite |
| External Material | Cast Iron |
| Seal Type | Mechanical Seal |
| Seal Elastomer | FKM |
| Min Flow Rate (GPM) | 0.0 |
| Max Flow Rate (GPM) | 85.0 |
| Max Pressure (PSI) | 250.0 |
| Max Temperature (F) | 225.0 |
| Relief Valve | Relief Valve |
| Gear/Idler Material | Ductile Iron / Ductile Iron |
| Shaft Material | Steel |
| Idler Pin | Hardened Steel |
| Idler Bushing | Carbon Graphite |
| Shaft Bushing | Sealed Ball Bearing |
Downloads:
Viking Pump 4195 Series Catalog Section
Viking AS-AK4195 Dimensional Drawing
Other Details
About Viking 495 Series & 4195 Series Internal Gear Pumps
The Viking Pump 495 Series and 4195 Series internal gear pumps are high-speed, motor-driven positive displacement pumps engineered for handling thin to moderate viscosity fluids in demanding industrial applications.
Designed for compact installations and continuous-duty operation, these Viking internal gear pumps deliver reliable, pulse-free flow for applications such as fuel transfer, lubrication systems, and industrial fluid circulation.
The Viking 495 Series gear pump is ideal for systems requiring flow rates up to 115 GPM (26 m³/h), while the Viking 4195 Series gear pump extends capacity up to 580 GPM (132 m³/h) for higher-volume industrial processes.
Features include:
- Compact internal gear pump design for tight space constraints.
- High-speed operation for economical performance in thin to moderate viscosity services.
- Vertical mounting options are available on select configurations to further reduce footprint.
- Multiple porting, drive, and mounting configurations to suit system requirements.
- Designed for thin to moderate viscosity liquids across a range of operating conditions.
Typical applications include:
- Refined Fuels (e.g., gasoline, diesel)
- Lube Oils and Machinery Lubrication
- Rotating Equipment Lubrication
- General industrial fluid transfer and circulation
Viking Pump Service & Repair
Centennial Equipment provides repair services, replacement parts, and support for Viking 495 and 4195 Series gear pumps to help maintain performance and reduce downtime.
Viking Pump 495 vs 4195 Series Comparison
Frequently Asked Questions
What fluids can the Viking 4195 pump handle?
These pumps are ideal for fuel oils, diesel, jet fuel, glycol, and lubrication fluids.
What is the difference between the 495 and 4195 Series?
The 4195 Series offers higher flow capacity, while the 495 Series is suited for smaller systems.
Is this pump suitable for fuel transfer?
Yes—this is one of the most common applications for the 495 and 4195 Series.
Can this pump run dry?
No—like all internal gear pumps, it requires proper lubrication during operation.
What industries use these pumps?
Common industries include energy, manufacturing, HVAC, and OEM equipment systems.
| Model | Standard Port Size | Nominal Pump Rating GPM | Nominal Pump Rating m3/h | Maximum RPM | Maximum Pressure PSI | Maximum Pressure BAR |
|---|---|---|---|---|---|---|
| G495 | 1 | 8 | 1.8 | 1750 | 250 | 17 |
| GG495 | 1 | 10 | 2.3 | 1750 | 250 | 17 |
| H495 | 1.5 | 15 | 3.4 | 1750 | 250 | 17 |
| HJ495 | 1.5 | 20 | 4.5 | 1750 | 250 | 17 |
| HL495 | 1.5 | 30 | 6.8 | 1750 | 250 | 17 |
| AS495 | 2.5 | 55 | 12 | 1750 | 250 | 17 |
| AK495 | 2.5 | 85 | 19 | 1750 | 250 | 17 |
| AL495 | 3 | 115 | 26 | 1750 | 250 | 17 |
| Model | NPT Ports (in) | Flange Ports Class 125 (in) | Flange Ports DIN PN - 16 (mm) | Nominal Pump Rating GPM | Nominal Pump Rating m3/h | Maximum RPM | Maximum Pressure PSI | Maximum Pressure BAR |
|---|---|---|---|---|---|---|---|---|
| G4195 | 1" | - | - | 8 | 1.8 | 1750 | 250 | 17 |
| GG4195 | 1" | - | - | 10 | 2.3 | 1750 | 250 | 17 |
| H4195 | 1.5" | - | - | 15 | 3.4 | 1750 | 250 | 17 |
| HJ4195 | 1.5" | - | - | 20 | 4.5 | 1750 | 250 | 17 |
| HL4195 | 1.5" | - | - | 30 | 6.8 | 1750 | 250 | 17 |
| AS4195 | 2.5" | - | - | 55 | 12 | 1750 | 250 | 17 |
| AK4195 | 2.5" | - | - | 85 | 19 | 1750 | 250 | 17 |
| AL4195 | 3" | - | - | 115 | 26 | 1750 | 250 | 17 |
| KE4195* | - | 4 | 100 | 150 | 34 | 1750 | 150 | 10 |
| KKE4195* | - | 4 | 100 | 205 | 47 | 1750 | 150 | 10 |
| LQE4195* | - | 4 | 100 | 235 | 53 | 1150 | 150 | 10 |
| LSE4195* | - | 4 | 100 | 350 | 80 | 1150 | 150 | 10 |
| Q4195* | - | 6 | 150 | 460 | 104 | 750 | 150 | 10 |
| QS4195* | - | 6 | 150 | 580 | 132 | 640 | 150 | 10 |
