DAEHAN INSTRUMENT

ISO 9001/14001 Certified Manufacturer

Orifice Plate

ISO 5167-2 Standard Differential Pressure Flow Meter

The most widely used differential pressure flow measurement device with simple structure and high reliability

Product Overview

The orifice plate has been the most traditional and reliable flow measurement device since the early 1900s. Due to its simple structure, low cost, and high accuracy, it is the most widely used worldwide.

Orifice Plate P1 P2

Key Features

Full compliance with ISO 5167-2 and ASME MFC-3M standards

High measurement accuracy within 0.5%

Various tapping methods: flange tap, corner tap, D-D/2 tap

Wide pipe diameter range from 15mm to 1000mm

Suitable for all fluids: liquid, gas, and steam

Technical Specifications

Pipe Diameter 15mm - 1000mm
β Ratio 0.1 - 0.75
Reynolds Number 5×10³ - 10⁸
Accuracy ±0.5% - ±1.0%
Materials Stainless Steel 316, Hastelloy, Titanium

Applications

Oil refining and petrochemical processes

Natural gas metering

Power plant feedwater and steam measurement

Water and wastewater treatment plants

Chemical process control

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