Orifice Plate with holding flanges nut bolts and gaskets are called orifice assembly. Flanges generally are of M.S. / C.S./304 S.S./ 316 S.S., nut bolts M.S. Galvanized, Gasket C.A.F. Other construction is possible & will be made against order. Flanges generally are of 4 types a) Weld Neck b) Slip-on c) Carrier Ring d) D & D/2 tappings or pipe run assembly. Pressure tappings are in flange itself in 1 st 3 types, while for D & D/2 they are on pipe. Assemblies supplied for 1½ “ to 24” Line sizes. Orifice bore calculations as per BS1042 on the basis of your given data is done & bore size is determined & made. Bore calculations are also provided alongwith instruments or can be sent for approval before manufacturing.

They are primary element to generate differential pressure for rate of flow measurement. Designed & made as per BS 1042, or as per your given drawing or dimensions. 

Bore is precisely bored to exact tolerances & have sharp lead edge to ensure accuracy. 

Line size i.e. exact I.D. & O.D. or pipe schedule, fluid data i.e. Name, Op. Temp., Op. Pressure, Maximum Flow details & Maximum D.P. at full flow details are required for making or quoting. Standard construction is 304 S.S. or 316 S.S. Any other construction is possible. 

Standard thickness are 3 mm, 4.5mm, 6mm & 8mm . 

For easy reference, Fluid, Flow, Bore & Line Size details are engraved on orifice plate handle.