Stainless Steel Flow Switch, DN20, 150 LB, 24VDC, 230VAC

Product Type: Flow Switch (Insertion-type, Flanged)

Material: Stainless Steel body, PTFE (wetted internal components)

Flow Setpoint: Qmax 100 L/h (normal, max flow threshold)

Temperature Range: -40 to 150℃

Pressure Rating: Per DN20, ASME Class 150 flange rating

Process Connection: DN20, ASME CL150 flange

Power Supply: 24V DC, 230V AC

Electrical Classification: EEx d IIA T3 (flameproof), ATEX certified, IP65 enclosure protection

Fluid Compatibility: Biocide, Corrosion Inhibitor dosing fluids — rated for Specific Gravity 1.02, Viscosity 70 cP

Housing Configuration: All-stainless-steel enclosure with side-entry threaded cable, conduit connection, top cover for internal access, hex-nut adjustable insertion depth on the sensing rod

Core Advantages

Full Stainless Steel Construction: Corrosion-resistant body and PTFE-wetted parts suit aggressive dosing chemicals like biocides and corrosion inhibitors without material degradation.

Explosion-Proof & Weatherproof Rated: EEx d IIA T3, ATEX with IP65 housing enables safe installation in classified hazardous areas, indoors or outdoors.

Wide Temperature & Pressure Tolerance: Operates reliably from -40℃ to 150℃, suitable for both cold ambient and heated process lines.

Flexible Power Options: Available in 24VDC or 230VAC, easing integration into different plant electrical systems.

Precise Low-Flow Detection: Calibrated for low-flow dosing applications (Qmax 100 L/h), ideal for monitoring chemical injection lines where flow verification is critical for dosing system safety.

Applications

Designed for flow verification on chemical dosing skids - particularly biocide and corrosion inhibitor injection lines in oil & gas, water treatment, and petrochemical facilities - where confirming continuous dosing flow (no-flow/low-flow alarm) protects downstream equipment from under-dosing or pump dry-run conditions.