Model FOW Orifice Flange Assemblies are used in conjunctionwith Orifice Plates〈Model FOP〉for flow measurement ofsmaller or medium size pipes at lower or medium pressure ranges.The flange connection is of an RF type and the differentialpressure tapping system is with flange taps.

Nominal diameters：20-mm〈3/4"〉to 350-mm〈14"〉

Flange ratings：

JIS 10、20、30 kg/cm2 RFANSI 150、300、600 、1500 lb RF

Working temperature range：

max. 400 oCFlange material：

SF45、SUSF304、SUSF316Differential pressure piping connection：

PT1/2 or NPT 1/2 internal threadMain materials ：

Flange ：SF45、SUS304、SUS316Plate with tab handle :SUS304、SUS316Through-bolts：SNB7Nuts：S45CJack bolts and nuts：S25C

Gaskets：

JIS 10、20 kg/cm2、and ANSI 150、300 lbMaterial：Asbestos sheet gasketThickness：1.5mm

JIS 30 kg/cm2、and ANSI 600 lbMaterial：Vortex gaskets with inside and outside

ringsThickness：4.5mm

ORIFICE FLANGE ASSEMBLIES

MODEL：FOW

Standard Specifications

BNC INDUSTRIAL CO., LTD.

Welded Neck

Orifice Plate