Product details description
Orifice flange assembly enables accurate fluid flow measurement in
industrial systems, relying on Bernoulli’s principle to convert pressure
differences into volumetric data. This device consists of a pair of flanges
sandwiching a thin metal orifice plate (with a precisely drilled hole),
connected to pressure transmitters via taps. Used in oil refineries, chemical
plants, and water treatment facilities, it measures gas, liquid, or steam flow
rates with an error margin of ±1–2%, making it a cost-effective alternative to
turbine meters.
The design of orifice flange assembly prioritizes precision and durability.
The orifice plate’s thickness (1–10 mm) and hole diameter (10–500 mm) are
calculated based on flow rate and pipe size, with sharp edges to minimize
turbulence. Flanges (carbon steel, stainless steel, or Hastelloy) are bolted
together, creating a leak-proof seal. For corrosive media, PTFE gaskets or
ceramic plates are used. Calibration against standards (ASME MFC-3M) ensures
accuracy, with periodic recalibration recommended.
Applications of orifice flange assembly extend to energy management. In
power plants, it optimizes boiler feedwater flow; in HVAC systems, it balances
chilled water distribution. Installation requires straight pipe runs
upstream/downstream to stabilize flow, and proper alignment to avoid vibration.
Though limited by pressure drop, its simplicity and low maintenance (no moving
parts) make it a workhorse in process industries. By delivering reliable data,
orifice flange assembly supports efficient resource utilization.
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Orifice Flanges with Taps - Precise Pressure Tap Configurations
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Weld Neck vs. Slip-On Flanges: A Performance and Cost Comparison
