The EPSILON flow meter is a compact orifice meter designed according to the differential pressure principle and is used for flow measurement of liquid and gas. It is especially designed for installations with limited space due to the flow conditioning effect created by the 5-hole construction. This means that upstream in the straight pipe run, the flow meter can be reduced from 20 times inner pipe diameter to 5 times inner pipe diameter, which is crucial with limited space available.
The EPSILON flow meter is backed by international standards covering both flow calculation, manufacturing tolerances, accuracy and installation requirements. It is suitable for application within process industries, pharmaceuticals and the power industry. Choose model EP1, EP3 or EP5 depending on your need for integration of manifold valves.
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Design and calculation standards |
ISO 5167-2, ASME MFC-3M |
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Sizes |
DN 50 - 400, 2" - 16" |
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Pressure rating |
Up to PN 40, 300 lbs, higher pressure ratings on request |
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Temperature |
Process : -50 - +150°C, higher temperature with Remote Mounting Kit |
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Mounting Style |
Between flanges according to DIN or ANSI standards |
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Flange facing |
Flat face, raised face, DIN 2512 N, DIN 2513 R |
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Overall length |
32 mm |
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Material |
Stainless steel AISI 316, other materials on request. |
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β (d/D) equivalent |
0,5 and 0,6 |
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Accuracy |
± 1% accuracy |
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Pressure loss |
Typical 150 mbar for liquid flow, and 50 mbar fror gas flow (values are given at full flow) |
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Rangeability |
8:1 |
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Repeatability |
better than 0.1% |
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Limits for Reynolds No |
Re > 5000 |
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Double flanged 3 or 5 way manifold |
Model EP1
The EPSILON flow meter model EP1 consists of a primary element based on the differential pressure principle, a flange manifold for double flanged valve manifold
Model EP2
The EPSILON flow meter model EP2 consists of a primary element based
on the differential pressure principle with an integrated 3 valve manifold
Model EP5
The EPSILON flow meter model EP5 consists of a primary element based
on the differential pressure principle with an integrated 5 valve manifold
The EPSILON flow meter can be mounted in a horizontal or vertical pipe. For liquid flow in a horizontal pipe the electronics shall be mounted below the pipe. For gas flow in a horizontal pipe the electronics shall be mounted above the pipe. High accuracy of measurement is achievable even with short straight pipe runs upstream from the flow meter. The required straight pipe run is only 5 x inner pipe diameter and 2 x downstream to maintain an accuracy of 1%. If mass flow is required due to changing process conditions ask for the EPSIMAS mass flow meter data sheet. Saturated and superheated steam is covered by EPSISTEEM flow meters
Download the installation guide above for more detailed information.
