Flow Instruments

Steady Flow Meter Steady Flow Meter

MODEL : SFM300 / SFM305
A differential-pressure flow meter that combines a flow straightening section and a flow element in one unit to reduce measurement error caused by turbulence. The SFM300 is a built-in type for pipes and ducts of 4B (100A) and above; the SFM305 is an insertion type for large bores of 20B (500A) and above.

Product Overview

Steady Flow Meter

Steady Flow Meter SFM300
SFM300SFM305

The SFM300 steady flow meter is a flow meter with a built-in (Built-in type) flow straightening function to counter the effects of turbulent flow (turbulent flow) during measurement, designed to prevent measurement error.

The SFM305 is a model that combines a flow straightener (commutator) and a flow element in a single insertion-type (Insertion type) product for large-bore ducts and pipes, providing stable measurement while reducing cost.

Both models have a turndown of 6:1, and the material is selected from Carbon Steel, STS304, STS316, Inconel, Monel and Hastelloy.

Turndown 6:1SFM300: 4B (100A) and aboveSFM305: 20B (500A) and above, insertion typeFlange 150# / 300# · Duct
English description

SFM300 — Shank due to turbulent flow on measuring, Built-in type for measuring error-prevention. SFM305 — In large duct or pipe case, Insertion type product containing a commutator and flow element for Saving cost and stable measuring. Turndown Range 6:1, Accuracy ±2.0%.

Types · model configuration

Specification comparison by model

SFM305 insertion type (for large pipes and ducts)
SFM305 insertion type (for large pipes and ducts)
ItemSFM300
Built-in type (Built-in)
SFM305
Insertion type (Insertion)
FeaturesBuilt-in flow straightening to prevent measurement error due to turbulenceFor large-bore ducts and pipes · insertion type integrating straightener + flow element · cost saving and stable measurement
Turndown6:16:1
MaterialsCarbon Steel, STS304, STS316, Inconel, Monel, HastelloyCarbon Steel, STS304, STS316, Inconel, Monel, Hastelloy
ConnectionFlange 150#, 300#, DuctsInsertion Flange 150#, 300#, Ducts
Applicable pipingMore 4B (more 100A) Pipe & DuctMore 20B (more 500A) Pipe & Duct
Accuracy±2.0% (±0.5% when calibrated)±2.0% (±0.5% when calibrated)

Technical Specifications

Detailed conditions are confirmed at quotation.

ItemValue
Turndown6:1
MaterialsCarbon Steel, STS304, STS316, Inconel, Monel, Hastelloy
Connection (Mounting)SFM300: Flange 150#, 300#, Ducts / SFM305: Insertion Flange 150#, 300#, Ducts
Applicable pipingSFM300: 4B (100A) and above Pipe & Duct / SFM305: 20B (500A) and above Pipe & Duct
Accuracy±2.0%

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We can help with specification review and quotation

Tell us the pipe size, fluid, pressure / temperature and flow range, and we will propose a suitable model and a flow calculation sheet.

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Tel 031-357-8431 (Sales, ext. 1) · Fax 031-357-8432