SRZ ST

Helical Flow Meters in Standard Design for high-viscosity and abrasiv media

The SRZ ST helical flow meter series (ST for standard version) are flow-measuring devices that are used mainly in highly viscous, abrasive, filled as well as lubrication and non-lubrication media.

Thanks to its concept, temperature fluctuations and the resulting change in the viscosity of the medium only marginally affect the measuring accuracy of the SRZ ST. This makes it especially well suited for use in test stands and for measurements with changing application conditions.

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Functions & Specifications

Measuring Ranges: 0.4 up to 400 l/min
Measuring Accuracy: up to ±0.1 %
Repeatability: ±0.05 % (under the same conditions)
Linearity: up to ±0.25 % of actual flow
Materials: Housing: as per DIN 1.4305 [AISI 303], 1.4404 [AISI 316L]
Helicals: as per DIN 1.4122
Bearing: tungsten carbide
Seals: FKM, PTFE (others on request)
Pressure: up to 315 bar [4,500 psi]
Medium Temperature: -40 °C up to +150 °C [-40 °F up to +302 °F] (others on request)

Pickups, Amplifiers, Evaluation Electronics and Additional Accessories

Evaluation Electronics

Local Displays (VRGS Ex)

Local Display for Reed Contacts

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Evaluation Electronics

Local Displays (VTGS Ex)

for wall mount with analog and frequency output

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Pickups and Amplifiers

ECO Ex Pulse Amplifiers

Single / double tap with different output functions

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Pickups and Amplifiers

ECO Pulse Amplifiers

Single / double tap with different output functions

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Evaluation Electronics

Local Displays (VTC/VIC)

with analog and frequency output, temperature measurement

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Pickups and Amplifiers

Local Converters (WIE)

programmable and with interface

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Evaluation Electronics

Intrinsically Safe Supply Unit and separation amplifier (EWS)

to supply intrinsically safe pickups and amplifiers

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Documents, Manuals & Software

Title	Date	Language	Download
Helical Flow Meters – Datasheet SRZ ST Series	01.01.2022	English (EN)	PDF (733 KB)
Helical Flow Meters – Manual SRZ	02.11.2022	English (EN)	PDF (457 KB)