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Howden - Model SF Series -Single-Stage Centrifugal Turbo Compressors
The SF series is a range of single-stage centrifugal turbo compressors with an overhung, semi-open impeller (3D design), supported by a separate bearing pedestal, direct driven or provided with a separate gearbox. With this design, featuring highest rigidity and optimised rotordynamic behaviour, the SF series serves the most demanding duties in its industries - like compression of corrosive, erosive and sticky gases and suitable for installation in harsh environments.
Gas ?ows up to 600,000 m³/h can be handled. It sets the benchmark for safety and reliability, at lowest lifecycle costs, in favour of their owners.
For design pressures up to 50 bar (g) and gas flows up to 200,000 m³/h, the SF series is also available in a high-pressure design to serve process gas applications and is typically provided with dry gas seals in double or tandem arrangement including a sealing gas panel.
The SF series is optionally available in a design compliant to API Standard 617, Part 1 & 2.
Formerly known as:
- STC-SO (SFO / SFP / SFN) or STC-SO (FO / FP / FN) - under Siemens
- SFO / SFP / SFN - under Kühnle, Kopp & Kausch
- Flow rates from 3,000 up to 600,000 m³/h
- Pressure ratio up to 3.5
- Impeller diameter up to 2240 mm
- Driver of your choice
- Sulphuric Acid Plants (Metallurgical and Chemical / Fertilizer)
- Spent Acid Regeneration Industrial Evaporation Processes
- Zero Liquid Discharge
- Steam Assisted Gravity Drainage
- Process Gas & Chemical Plants (PA, MA, MMA, EO/EG, Acrylic Acid, Oxo-Alcohol, PE, Ammonia, CTL/CTG etc.)