The 4924A Series™ internal gear pump is the perfect solution for ammonia pumping (refrigerant R-717) due to efficiently keeping the ammonia in liquid form to make removing heat easier. It can handle capacities from 10 to 60 GPM (2.3 to 13.6 m³/h).
Features & Benefits
- Cast Iron
- Double mechanical seal with barrier fluid for superior containment
- Five sizes from 10 to 60 GPM
Capacity
10 to 60 GPM
2.3 to 13.6 m³/h
Pressure
to 50 PSI
to 3.5 Bar
Temperature
-40 to +225 °F
-40 to +105 °C
Options
Porting
Flanged (ASME / ANSI)
NPT
Drives
R Offset Gear Reducer Drive
P Purchased Gear Reducer Drive
V Drive | V-Belt Drive
Mounting
Foot Mount
Sealing
Mechanical Seals
Specifications
Model | Standard Port Size | Nominal Pump Rating (GPM) | Nominal Pump Rating (m3/h) | Maximum RPM | Maximum Pressure PSI | Maximum Pressure BAR |
---|---|---|---|---|---|---|
HL4924A | 1.5 | 10 | 2 | 780 | 50 | 3 |
K4924A | 2 | 20 | 5 | 280 | 50 | 3 |
KK4924A | 2 | 30 | 7 | 280 | 50 | 3 |
LQ4924A | 2.5 | 50 | 11 | 280 | 50 | 3 |
LL4924A | 3 | 60 | 14 | 280 | 50 | 3 |
Videos

Ammonia
Ammonia (Refrigerant R-717) is a very thin liquid that is a gas at ambient temperature and pressure. It is typically kept at elevated pressure to keep it in liquid form. Ammonia is used as the refrigerant in cooling systems.
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