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Dosch - Model E98C -Cone Meters
Cone meters are used for flow measurement of aggressive and non-aggressive gases, steam and liquids.
A cone meter according to ISO 5167-5 consists of a pipe section in whicha cone is positioned concentrically and which acts as athrottle element.The upstream pressure tap is located ataspecific distance fromthe downstream pressure tap. The downstream pressure tap bore runs from theoutside tappingconnection through the support strut of the cone to the downstream face of the cone element.Generally, we provide cone meters with end flanges for easy mounting
A cone meter - in contrast to all other flow elements - diverts the flow from the center axis to the pipe inner surface. The consequent mixing of the main flow with the low velocity boundary layer flow leads to a flattened flow profile. This results in considerably lower inlet/outlet straight length requirements as for the classical differential pressure flow elements.
+/-5% of the dischargecoefficient C(a calibration can improvethe uncertainty)
The pressure loss depends on the diameter ratio βand amounts to approx.50 -70% of the differential pressure.
DN 50 to DN 500 / 2“ to20“
PN 10 to PN 400 /150# to 2500# (ASME)
According to EN 1092-1 / ASME B16.5 / JIS- BS- or DIN-standards