
Radially Split Single-Stage Overhung Pumps (API Class OH2)

Radially Split Multistage Double Casing Between Bearing Pumps (API Class BB5)
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Axially Split Multi-Stage Between Bearings Pump (API Class BB3)
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Axially Split Multi-Stage Between Bearings Pumps (API Class BB3)
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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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Axially Split Single-Stage Between Bearings Pump (API Class BB1)
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Vertically Suspended Double Casing Diffuser Pump (API Class VS1 or VS6)
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Line-Shaft Vertical Sump Pump (API Class VS4)
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Hydraulic Power Recovery Turbine
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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



































































