A static separator for separating a fluid, comprising: a) a centerline; b) an inlet duct having an inlet flow entrance and an inlet flow exit, an inlet duct outer wall and an inlet duct inner wall, wherein any plane perpendicular to the said centerline and crossing said inlet duct defines: (i) an annular cross-section disposed between the inlet duct outer wall and the inlet duct inner wall, (ii) an inlet duct center of said annular cross-section positioned between the inlet duct outer wall and the inlet duct inner wall, (iii) an inlet width (W I) between the inlet duct outer wall and the inlet duct inner wall that decreases between the inlet flow entrance and the inlet flow exit, and (iv) an inlet radius (R I) extending between said inlet duct center and the centerline and increasing between the inlet flow entrance and the inlet flow exit; said static separator further comprising: c) a static separating turn fluidly connected to the inlet flow exit of the inlet duct and including an outer surface defining an opening; d) a liquid outlet fluidly connected to the opening of the static separating turn to allow a higher-density component of the fluid to exit the static separating turn; and e) an outlet duct having an outlet flow entrance connected to the static separating turn to allow a lower-density component of the fluid to exit the static separating turn, said static separator being characterized in that the inlet duct provides a constant cross-sectional flow area. a) a centerline; b) an inlet duct having an inlet flow entrance and an inlet flow exit, an inlet duct outer wall and an inlet duct inner wall, wherein any plane perpendicular to the said centerline and crossing said inlet duct defines: (i) an annular cross-section disposed between the inlet duct outer wall and the inlet duct inner wall, (ii) an inlet duct center of said annular cross-section positioned between the inlet duct outer wall and the inlet duct inner wall, (iii) an inlet width (W I) between the inlet duct outer wall and the inlet duct inner wall that decreases between the inlet flow entrance and the inlet flow exit, and (iv) an inlet radius (R I) extending between said inlet duct center and the centerline and increasing between the inlet flow entrance and the inlet flow exit; (i) an annular cross-section disposed between the inlet duct outer wall and the inlet duct inner wall, (ii) an inlet duct center of said annular cross-section positioned between the inlet duct outer wall and the inlet duct inner wall, (iii) an inlet width (W I) between the inlet duct outer wall and the inlet duct inner wall that decreases between the inlet flow entrance and the inlet flow exit, and (iv) an inlet radius (R I) extending between said inlet duct center and the centerline and increasing between the inlet flow entrance and the inlet flow exit; c) a static separating turn fluidly connected to the inlet flow exit of the inlet duct and including an outer surface defining an opening; d) a liquid outlet fluidly connected to the opening of the static separating turn to allow a higher-density component of the fluid to exit the static separating turn; and e) an outlet duct having an outlet flow entrance connected to the static separating turn to allow a lower-density component of the fluid to exit the static separating turn,