The Malema M-50X Series is an explosion-proof fixed set point flow switch designed for precise monitoring of low gas and liquid flow rates in hazardous industrial environments. The switch operates using a free-floating magnetic piston and hermetically sealed reed switch mechanism, providing highly sensitive flow detection with low hysteresis and minimal pressure drop. Because the switching point is factory preset, the device offers stable and repeatable long-term performance without field adjustment requirements.

Constructed primarily from 316 stainless steel, the M-50X Series provides excellent corrosion resistance and durability for demanding industrial and analytical applications. Available configurations include 1/8" and 1/4" FNPT connections with SPST or SPDT switching options. The series is UL recognized and ATEX and IECEx certified for hazardous area installations. Typical performance includes repeatability up to ±2%, pressure ratings up to 3000 psig, and flow ranges from approximately 50–5000 SCCM for air and 1–170 mL/min for water.

Typical applications include gas chromatographs, sample lines, leak detection systems, hazardous fluid systems, biomedical instrumentation, inert gas monitoring, and industrial process flow indication requiring reliable low-flow alarm functionality.