Designed for processes engineers requiring reliable operation in heavy-duty elevated temperature process services
The Marelli model KSMK, API 610 BB2 and ISO 13709 radially split, centerline mounted, double volute, between-bearings centrifugal process pump. It is available in one or two stage configurations. These pumps feature a double suction impeller. In-line and side by side flange configurations are available.
- Flows to 13,208 gpm (2,400 m³/hr)
- Heads to 1,640 ft (350 m)
- Suction Pressure 290 psi (20 bar)
- Temperature Range -22 to 752°F (-30 to 400°C)
Precision engineered API/ISO 13709 process pumps meeting rigorous engineering requirements for heavy duty, high temperature applications while receding the total life cycle cost and improving mean time between repairs.
APPLICATIONS
- Toppings
- Gas condensate
- HDS
- Platforming
- Thermal solar
- crude oil pipelines
- Gas pipelines
- Charge pumps
- Low shear applications
Proven to be reliable, efficient and long-lasting, Marelli BB2 pumps provide a number of operational benefits for process engineers and plant operators:
- API 610 11th Edition/ISO 13709 full compliance for reliability and accountability
- Suitable with 60 Hz and 50 kW motors
- Choice of multiple impellers in each hydraulic pump casing for maximum efficiency over a wide operating range
- Centerline mounted pump casing maintains alignment during operation at elevated temperatures
- Low suction specific speed and low NPSH characteristics, with a wide choice of impellers for optimum efficiency over a large operating range
- Finned bearing housing to provide maximum heat dissipation under API 610 compliance
- Deflection system with fins to improve cooling
- Labyrinth bearing seals to avoid external contamination and maximize seal and lubrication life
- Highly maintainable and replaceable wear rings to reduce overall life cycle costs
- Mechanical seal chamber suitable for cartridges defined under API 682 3rd Edition
- Socket welded flanged drains and vents as standard. Gussets and bracing also available
- A variety of instrumentation options are available for monitoring all key operating parameters (temperature, pressure, vibrations and more)
US 60 Hz
- Heads to 1,640 ft
- Flows to 13,208 gpm
- Standards API 610 BB2
- Maximum Motor Power 2,000 HP
- Temperature Range -22 to 752°F
- Maximum Case Working Pressure 870 psi
- Maximum Suction Pressure 290 psi
- Differential Head 1,640 ft
- Maximum Viscosity Consult Factory
- Mounting Configuration Horizontal/Top-Top (optional side-side)
- Seal Configurations API 682
Metric 50 Hz
- Heads to 350 m
- Flows to 2,400 m3/hr
- Standards ISO 13709
- Maximum Motor Power 1,500 kW
- Temperature Range -30 to 400°C
- Maximum Case Working Pressure 60 bar
- Maximum Suction Pressure 20 bar
- Differential Head 500 m
- Maximum Viscosity Consult factory
- Mounting Configuration Horizontal/Top-Top (optional side-side)
- Seal Configurations API 682
| Part | S1 | S5 | S6 | S8 | C6 | A8 | D1 |
| Pressure Casing | Carbon Steel (A216 WCB) | 12% CHR | 316 AUS | Duplex | |||
| Impeller | Cast Iron | Carbon Steel | 12% CHR | 316 AUS | 12% CHR | 316 AUS | Duplex |
| Wear Rings | Cast Iron | 12% CHR Hardened | Hard-faced 316 AUS | 12% CHR Hardened | Hard-faced 316 AUS | Hard-faced Duplex | |
| Shaft | Carbon Steel | AISI 4140 | 316 AUS | 12% CHR | 316 AUS | Duplex | |
| Bearing Housing | Carbon Steel (A216 WCB) | ||||||
| Base Gasket | AUS, Spiral Wound | 316 AUS Spiral Wound | AUS, Spiral Wound | 316 AUS, Spiral Wound | Duplex SS Spiral Wound | ||
