Casing:
Double casing for branch size larger than 80mm.
Samll radial force, low noise and thick casing wall.
Casing cover has cooling or heating connection unions.
Self-Venting at discharge.
Impellor:
Closed type, Open type, Semi-open type impellor for different liquids.
Bearing:
Bearing assembly has less vibration and less heating.
Oil lubrication controls the oil level automatically.
Mechanical seal:
Single seal, double seal and tandem seal cartridge typs confirming to API682.
Cooling, heating and sealing liquid system with API piping plan.
Easy maintenance:
Light weight, generalized and exchangeable pump parts.
Flexible coupling can be removed wihtout removal of pipeline and motor.
API610 Centrifugal Pumps
| Overhung (OH) | Flexibly coupled | Horizontal | Foot-mounted | OH1 |
| Horizontal | Centerline-supported | OH2 | ||
| Vertical | In-line with bearing bracket | OH3 | ||
| Rigidly coupled | Vertical | In-line | OH4 | |
| Between bearings (BB) | 1 & 2 stages | Axially split | Foot-mounted | BB1-A |
| Near-centerline mounted | BB1-B | |||
| Radially split | Centerline-supported | BB2 | ||
| Multistage | Axially split | Near-centerline supported | BB3 | |
| Radially split | Single casing | BB4 | ||
| Double casing | BB5 | |||
| Vertically suspended (VS) | Single casing | Discharge through column | -- | VS1 |
| Separate discharge pipe | Line shaft | VS4 | ||
| Cantilever shaft | VS5 | |||
| Double casing | Radially split | -- | VS6 |
**Some of above types of pumps does not meet all the requirements of API610 standard.
**API610 standard suggests that, further or differing requirements can be needed for individual applications. The vendor is necessary to identify any variations from API610 standard and provide details for alternative equipment or engineering solutions.
