STS FM130 Compact Inline Flow Sensor
Inline industrial flow sensor family with nominal DN25–DN400, PN6–PN40, process temperature −20 to +110°C and listed accuracy up to 0.5% FS.
Official technical evidence
STS FM130 original product documentation · STS model portfolio.
Approval scope: Rated pressure, process materials and any hazardous-area certificates require the manufacturer’s precise ordered assembly. This generic listing is not a certified installation drawing.
FM130 in-line flow sizing
DN25–DN400 describes available pipeline sizes, not an automatic fit for a chosen flow rate. The actual meter installation requires process fluid compatibility, full pipe/velocity conditions, pressure class and straight-run or mounting details from its specification. Match the inline primary sensing assembly with the proper electronics. The FM700 photograph on this page is explicitly not an FM130 exact image, so do not use it for port dimensions or approvals.
FM130 — mid-bore inline magnetic sensor versus separate converter
| Selection factor | Source-grounded product detail | Installed-system consequence |
|---|---|---|
| Published nominal diameters | DN25–DN400 for FM130, STS portfolio listing | Flow system span is a function of actual pipe area and flow velocity; not one m³/h range for all DN. |
| Pressure capability | PN6–PN40 variants, -20…+110°C process temperature | Do not extend FM150 PN250 or 180°C specifications to this compact family. |
| Accuracy reference | Maker lists up to ±0.5% FS for FM130 | The ±0.5% of full scale designation should be interpreted at the selected diameter and velocity span, not at any low indicated flow. |
| Liquid conductivity requirement | Works with conducting liquid using magnetic induction | Flow in gases, steam, clean nonconductive oils or empty pipe cannot be inferred from this sensor. |
| Controller integration | FM300 specifically lists FM130 as a compatible measuring tube; pulse/current outputs depend on chosen converter | Power/wiring and user display are FM300 electronics choices, not intrinsic FM130 sensor pins. |
Variant and approval conditions
STS’s related FM700 image already on this page is representative only and not an actual FM130 flange/housing. Process pipe grounding, inlet geometry, media conductivity and mating converter are prerequisites to total performance claims.
Original STS sources: STS original FM130 family specification · STS FM300 datasheet pairing overview.