Product Description
The fan casing (volute) from Qingdao Ruichen Power EP Equipment Co., Ltd. is a key airflow guide for centrifugal fans. Spiral or volute shape, consisting of shell, inlet nozzle, flanges, and stiffeners. Inlet single or double suction. Air enters axially, exits radially into the casing; expanding volute converts kinetic energy to static pressure and directs flow uniformly. Precision designed per fan performance curve. CNC cutting, rolling, automatic welding – smooth inner wall, no sharp edges. Fits marine/land centrifugal fans. Core part for high efficiency and low noise.
Key features:
Optimized flow, high efficiency: Logarithmic or equal‑velocity spiral shape; proper diffuser angle; low vortex loss.
Rigid structure, high pressure resistance: Medium‑thick steel, continuous welds, stiffeners; withstands pulsating pressure without deformation or resonance.
Tight sealing, no leakage: Weld leak‑checked; gasketed flanges; optional labyrinth/carbon seals at shaft hole.
Wear & corrosion resistant: Hardfacing, rubber lining, or stainless steel sheet for dust/corrosive gas; marine‑grade coating.
Easy maintenance: Large units have access doors or cleanout ports; adjustable inlet nozzle clearance.
Flexible custom design: Inlet/outlet orientation and size per fan model, flow, pressure, space; optional acoustic or thermal insulation.
Applications: Marine boiler FD/ID fans, ventilation fans; land power plant primary/secondary/ID fans; industrial dust collection and material conveying fan casings; HVAC centrifugal fan volutes.
Qingdao Ruichen Power EP Equipment Co., Ltd. offers high‑quality marine and boiler auxiliaries including fan casings, air boxes, smoke boxes, manhole doors, steel platforms, and OEM custom metal structures. Welcome to inquire.
