Jet Pump Selection Guide
Jet Pump Sizing Request Form (We’ll reply with the recommended size along with price & availability)
Tank Eductor Sizing Request Form (We’ll reply with the recommended size along with price & availability)
Use the following tables to help select the appropriate jet pump/eductor.
Jet pumps, also known as eductors, operate on the principles of fluid dynamics. An operating fluid media, which is referred to as the MOTIVE, placed under pressure enters the inlet and is forced through the nozzle where it is converted into a high-velocity stream. This high-velocity stream decreases the pressure in the suction chamber, creating a partial vacuum that draws the suction material into the chamber where it is entrained by the motive media. Once the SUCTION stream is drawn in, shear between motive media and the transported material causes both media to be intermixed and pumped out the DISCHARGE outlet, dispelled at a pressure greater than that of the SUCTION stream but lower than that of the MOTIVE. This basic principle of fluid dynamics is what makes jet pumps work.
Liquid Jet Pump Table
Using Liquid as Operating Medium| Discharge Head Level - Model | Low - SL / LL | Med - ML / LM | High - HL / LH |
|---|---|---|---|
| Operating Medium | Liquid | Liquid | Liquid |
| Operating Medium Pressure Range | 15-200 PSIG | 15-200 PSIG | 15-200 PSIG |
| Nom Operating Med Pressure PSIG/ft of Discharge Head | 2.0 PSIG (SP.GR. 1.0) | 1.5 PSIG (SP.GR. 1.0) | 1.0 PSIG (SP.GR. 1.0) |
| Discharge Head Pressure Range | to 50 FT. | 40 to 80 FT. | 80 FT. or more |
| Suction Lift | to 27 FT. | to 27 FT. | to 27 FT. |
| Minimum NPSH | 3 FT. | 3 FT. | 3 FT. |
Jet Pumps for Gas
Using Air, Liquid or Steam as Operating Medium| Model | ML/LM | MLE/ELL | SG/GL | GH/HG |
|---|---|---|---|---|
| Operating medium | Liquid | Liquid | Steam, Air | Steam, Air |
| Operating medium pressure range | 20-250 PSIG | 20-250 PSIG | 60-120 PSIG | 20-80 PSIG |
| Maximum Vacuum | 29 IN. HG. | 29 IN. HG. | 24 IN. HG. | 24 IN. HG. |
| Outlet Pressure (PSIG) | 20 | 20 | 12 | 20 |
| Functions | Evac/Exh/Prime | Evac/Exh/Prime | Evac/Exh/Prime | Evac/Exh/Prime |
Jet Pumps for Steam
Using Steam as Operating Medium| Discharge Head Level - Model | Low - SG / GL | High - HG / GH |
|---|---|---|
| Operating Steam Pressure Range | 60-150 PSIG | 35-150 PSIG |
| Oper. Steam Press. to Elevate Liquid 50 FT. | 150 PSIG | 75 PSIG |
| Suction Lift (with Water Temp to 120°F) | to 20 FT. | to 20 FT. |
| Minimum NPSH | 13 FT. | 13 FT. |
Heating Liquids in-tank
Using Steam as Operating Medium| Model | HWN | TLM | LX-32 | JR |
|---|---|---|---|---|
| Operating Medium Pressure | to 120 PSIG | to 140 PSIG | to 140 PSIG | to 150 PSIG |
| Max Water Temp Rise | to 120°F | to 120°F | to 120°F | to 120°F |
| Max Final Temp | to 160°F | to 160°F | to 160°F | to 170°F |
Heating Liquid in-Line
Using Liquid as Operating Medium, Steam as Suction Stream Heat Source.| Model | LLE | MLH | JR | SHF |
|---|---|---|---|---|
| Suction Steam Pressure | to 45 PSIG | to 120 PSIG | to 150 PSIG | to 150 PSIG |
| Max Water Temp Rise | to 182°F | to 216°F | to 200°F | to 200°F |
| Max Capacity | 5,000 GPM | 5,000 GPM | 700 GPM | 700 GPM |
Mixing Liquids in-Tank
Using Portion of Tank Contents or another Liquid as Operating Medium.| Model | TLM |
|---|---|
| Pressure Differential of Inlet to Tank Pressure | 10-100 PSIG |
| Max Capacity of Total Liquid Mixed per Unit | 12,730 GPM |