摘要 |
Fluid flow apparatus (12) having a plurality of cyclone separators (10) demountably connected between an inlet duct (26) and an outlet duct (32) with valves (28), (34) arranged to permit parallel liquid flow through the separators (10) from the inlet duct (26) to the outlet duct (32) or series flow through the separators via portions of the inlet and outlet ducts (26, 32) and via a connecting duct (38). The separators (10) have separating chambers (16) formed from in situ moulded material in a reinforcing casing. |