5
/
8
WWW.DDTOP.COM
2.2
Operating Principle-Figure 2
Integral orifice flow meter and standard orifice plate are based on the principle of fluid continuity
and Bernoulli's equation of conservation of energy, putting a piece of integral orifice plate into a full
tube of medium in the process pipeline, when the fluid flows through the integral orifice plate flow
meter, the flow beam will be in the flow element to form a local contraction, thereby increasing the
flow rate, low static pressure, so the flow element will produce a pressure drop before and after the
pressure drop, that is, the pressure difference, the greater the flow of the medium, the greater the
pressure difference generated before and after the flow element, through the differential pressure
transmitter can output and the measured fluid flow value as a square relationship between the
standard signal, can be converted into flow value.
Basic Calculation Formula:
或
or
C-- Outflow coefficient dimensionless
ε-- Coefficient of expansion
β-- Throttle diameter ratio
d—mm Throttle orifice diameter mm
ΔP--Pa Differential pressure Pa
ρ-- kg/m
3
Density of measured medium kg/m3
2.3 Package
Please send packaging waste to a special recycling agency.
2.4 Lifting Transportation
Please use qualified lifting equipment and lifting straps, and pay attention to safety.
2.5 Storage
Storage temperature -20℃~40℃; storage humidity ≤20%.
3 Main Executive Standard
Comply with GB/T2624-2006, ISO5167-2003, BS1042-1992 and other standards.
4 Main Features
4.1 Transmitter and flow element integrated installation, saving installation and maintenance work.
