Carbon Steel Standard Orifice Flange

Release time：2026-02-07    Click：10

　　Accurate flow measurement and control are vital in process industries, and the carbon steel standard orifice flange is a fundamental component for achieving reliable differential pressure readings across an orifice plate. Machined to precise dimensions and conforming to recognized standards, this flange assembly ensures repeatable performance in gas, liquid, and steam services.

　　Constructed from robust carbon steel, the flange resists mechanical stress and pressure loads encountered in pipelines. The material’s strength makes it suitable for high-pressure systems, while its machinability allows for accurate boring and facing to match orifice plates and companion flanges. Standardization ensures compatibility with existing piping systems and instrumentation.

　　The orifice flange assembly includes pressure taps positioned upstream and downstream of the orifice plate to measure the pressure drop caused by fluid acceleration. This data feeds into calculations that determine flow rate. The flange’s design isolates the taps from turbulence and flow disturbances, improving measurement accuracy. Gasketed joints and bolting maintain leak-tight integrity under varying thermal and pressure cycles.

　　Carbon steel’s susceptibility to corrosion is mitigated through proper coating or selection of corrosion-resistant variants when used with aggressive media. In many applications, the dry nature of the measured fluids or the presence of corrosion inhibitors reduces risk, allowing the economical benefits of carbon steel to be realized without compromising longevity.

　　Installation and maintenance are straightforward. The flanges are aligned and bolted between pipeline sections, with the orifice plate held centrally by a carrier ring. Periodic inspection ensures gasket integrity and freedom from blockage in pressure taps. Replacement of orifice plates or recalibration can be performed without major system disruption.

　　Carbon steel standard orifice flanges provide a cost-effective, precise solution for flow measurement challenges. Their robust construction and standardization make them a trusted choice in refining, chemical, power, and water treatment plants worldwide.

Previous article：Connecting Pipelines Securely with Lap Joint Flange
Next article：Orifice Flange Tapping Configurations