Oriface Flange

• Design: An orifice flange is a specialized flange designed to accommodate orifice plates used for measuring flow rates in pipes. It typically features a raised face with bolt holes and a precision-machined hole for the orifice plate. Orifice flanges are used in conjunction with orifice plates to create a differential pressure measurement for flow measurement purposes.


• Applications: Widely used in industries where flow measurement is critical, such as in oil and gas, chemical processing, water treatment, and power generation. They are integral to systems that require accurate flow measurement and control.


• Installation: The orifice flange is installed between two standard flanges in a pipeline. The orifice plate is sandwiched between the orifice flange and a companion flange. The assembly is bolted together to ensure a tight seal and accurate pressure differential measurement.

Chemical and Mechanical Properties Table

Material	Grade	Chemical Composition (wt%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
Carbon Steel	ASTM A105	C: 0.35 max, Mn: 0.60-0.90, P: 0.035 max, S: 0.035 max	205 - 250	420 - 550	20
Stainless Steel	ASTM A182 F304	C: 0.08 max, Cr: 18.0-20.0, Ni: 8.0-10.5	205 - 310	510 - 720	40
Stainless Steel	ASTM A182 F316	C: 0.08 max, Cr: 16.0-18.0, Ni: 10.0-14.0, Mo: 2.0-3.0	205 - 310	510 - 720	40
Alloy Steel	ASTM A234 WP22	C: 0.12-0.20, Cr: 1.0-1.5, Mo: 0.4-0.6	205 - 275	485 - 620	20
High-Temperature Alloy	ASTM A182 F91	C: 0.05-0.15, Cr: 8.0-9.5, Mo: 0.85-1.05	415 - 485	620 - 825	20

Notes:

• Chemical Composition: Represents the alloying elements in the material, such as chromium and nickel, which affect properties like corrosion resistance.


• Yield Strength: The stress at which the material begins to deform permanently.


• Tensile Strength: The maximum stress the material can withstand while being stretched or pulled before breaking.


• Elongation: Indicates the ductility of the material, showing how much it can stretch before failure.