Fans and Blowers

Multi stage Blowers

Multi stage blowers are designed according to applications and can be adapted to meet client-specific or process requirements.

SiccaDania delivers both tailor-made as well as standard multi stage centrifugal blowers with differential pressures up to 1.2 bar(g) at ambient inlet conditions.

Incineration and other high-pressure process applications can require flow/pressures ratios that cannot be achieved with one impeller.

Tailor-Made Multi Stage Blowers

The tailor-made multi stage blowers can be delivered up to 4 stages with differential pressures up to 1.2 bar(g) at ambient conditions and up to 3 bar(g) in high-pressure systems or with heavier gasses.

Our blowers are applied worldwide for a variety of applications and gasses. The selection and ancillaries are specifically selected based on process conditions and operational envelope.

In many cases, these blowers are equipped with bearing and process monitoring and, when toxic gases or high-pressure applications are involved, with special shaft seals and seal gas supply systems.

These ancillary systems are fully designed and manufactured by SiccaDania VTK.

Standard Multi Stage Blower type S395

The standard multi stage blower, type S395, is noted for its compact, rigid construction.

Standardised components make it possible to combine four suction inlet positions with four air discharge positions, giving a choice of sixteen combinations.

The bearings are designed for arduous duty conditions and carry a robust steel shaft of generous proportions, designed for a critical speed, at least 40% greater than the maximum running speed.

The impellers are made from aluminium alloy, suitable for a maximum inlet temperature of 60 and can handle gas with non-abrasive dust.

The v-belt drives are designed to the ISO series of v-ropes and pulleys, allowing for a selection from four rpm ratings.

The S395 fan can be supplied with 2, 3, 4, 5 or 6 stages, with a choice from four rpm ratings.

Typical applications for the multi stage blowers

  • 2-stage Air Blower for a production line, conveying material from the extruder or granulator to a storage facility over 300 m
  • 3-stage Incinerator Air Blower for a Sulphur Recovery application, maintaining a constant pressure of 0.8 bar(g) in a header, complete with inlet control valve, blow off valve and anti-surge system
  • 4 stage Start-up Blower for gradually pressurizing a closed process loop of a reactor to 4.0 bar(g), equipped with inlet and recycle valve, intercooler for recycling line and including process monitoring system with performance controller and anti-surge safeguarding. Blower casing design pressure 11 bar(g)

The multi stage blowers are typically designed for the application and can be adapted to meet client-specific or process requirements, which include:

  • Corrosion-resistant materials
  • Gas-tight execution
  • Atex requirements
  • Antifriction or sleeve bearings
  • Mechanical seals with seal gas supply systems
  • Circulation oil systems
  • Oil mist lubrication
  • Intake sections with filters
  • Strainers
  • High system pressure design up to 15 bar
  • Anti-surge control
  • Process and equipment monitoring systems

Typical applications for the multi stage blowers

  • 2-stage Air Blower for a production line, conveying material from the extruder or granulator to a storage facility over 300 m
  • 3-stage Incinerator Air Blower for a Sulphur Recovery application, maintaining a constant pressure of 0.8 bar(g) in a header, complete with inlet control valve, blow off valve and anti-surge system
  • 4 stage Start-up Blower for gradually pressurizing a closed process loop of a reactor to 4.0 bar(g), equipped with inlet and recycle valve, intercooler for recycling line and including process monitoring system with performance controller and anti-surge safeguarding. Blower casing design pressure 11 bar(g)