VOLUME FLOW MEASURING ELEMENT - ORIFICE PLATE
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS418364
Definition | A <VOLUME FLOW MEASURING ELEMENT - ORIFICE PLATE> is a <VOLUME FLOW MEASURING ELEMENT - DIFFERENTIAL PRESSURE> that is a plate with a hole through it, placed in the flow; it constricts the flow, and measuring the pressure differential across the constriction gives the flow rate. It is basically a crude form of Venturi meter, but with higher energy losses. There are three type of orifice: concentric, eccentric, and segmental |
ISO number | 4597 |
Note | By measuring the difference in fluid pressure between the normal pipe section and at the vena contracta (just after the orifice), we can find the velocity of the fluid flow by applying Bernoulli's equation. |
RDS number | RDS418364 |
Source | Instrumentation |