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, <EOS>