Radially Split Single-Stage Overhung Pumps (API Class OH2)
Radially Split Multistage Double Casing Between Bearing Pumps (API Class BB5)
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The BTBF is appropriate for many high-pressure, high-temperature, high-speed applications in a wide range of industrial processes. The BTBFD offers double-suction impeller at the first stage for low-NPSH applications. |
Axially Split Multi-Stage Between Bearings Pump (API Class BB3)
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The double volute casing of the HTB allows for easy removal and inspection of the rotor. The HTBD offers double-suction impellers at the first stage for low-NPSH applications. |
Axially Split Multi-Stage Between Bearings Pumps (API Class BB3)
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The precision-machined diffuser of the MTB allows for highly efficient operation even at low flow rates. |
Axially Split Two-Stage Between Bearings Pump (API Class BB1)
Radially Split Two-Stage Between Bearings Pump (API Class BB2)
Radially Split Single-Stage Between Bearings Pump (API Class BB2)
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Featuring a closed double-suction impeller, the HDV is appropriate for many high-volume, high-temperature, low-NPSH applications. |
Axially Split Single-Stage Between Bearings Pump (API Class BB1)
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Featuring a closed double-suction impeller, the SD-S is appropriate for many high-volume, low-NPSH applications. |
Vertically Suspended Double Casing Diffuser Pump (API Class VS1 or VS6)
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The CZ is appropriate for many low-temperature, low-NPSH applications in a wide range of industrial processes. In addition, when the casing is removed, it may be used as a submerged pump. |
Line-Shaft Vertical Sump Pump (API Class VS4)
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With its impeller directly in the water, the SIW saves the time normally required for priming or air evacuation. The SIWN model is shaft seal–free. |
Hydraulic Power Recovery Turbine
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When transferring fluids from a high-pressure tank to a low-pressure tank, hydraulic power recovery turbines use the pressure differential to turn a rotor and effectively recover energy. |
SPEC (Shell Pre-Engineered Equipment Catalog)
A major company in the oil and gas industry, Shell has established the Shell Pre-Engineered Equipment Catalog (SPEC), the only such catalog recognized in Asia (four catalogs in total are recognized around the world). Recognized SNM models include NSI (OH2), HDV (BB2), RTV (BB2), SD-S (BB1), and HTB (BB3).
Pump model selection guidelines
| Model | API class |
Max. vol. (m3/h) |
Max. head (m) |
Temp. range (℃) |
Design features |
No. of stages |
Shaft support method |
|---|---|---|---|---|---|---|---|
| NSI(*) | CH2 | 1500 | 400 | To 400 | Radially split | 1 | Overhung |
| HDV(*) | BB2 | 3500 | 600 | To 400 | Radially split | 1 | Between bearings |
| SD-S(*) | BB1 | 8000 | 250 | To 1500 | Axially split | ||
| RTV(*) | BB2 | 500 | 750 | To 400 | Radially split | 2 | |
| RTH | BB1 | 2000 | 650 | To 200 | Axially split | ||
| BTBF | BB5 | 1100 | 3500 | To 400 | Radially split, double casing |
Multiple | |
| HTB(*) | BB3 | 750 | 2200 | To 200 | Axially split, single casing |
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| MTB | BB3 | 650 | 1500 | To 200 | |||
| CZ | VS6 | 120 | 1500 | -120 to 200 | Double casing | Multiple | Vertically suspended |
| CZ | VS1 | 120 | 1500 | -120 to 200 | Double casing, vertically suspended |
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| CZ | VS1 | 400 | 150 | To 250 | Double casing, vertically suspended |
1 |
*SPEC-registered model