Flow Switches - Kobold

The cutting-edge KOBOLD KAL-D Compact Thermal Flow Switch delivers reliable flow monitoring for water-based liquids through advanced calorimetric technology that requires no moving parts, ensuring exceptional performance even with particulate-laden fluids. Featuring microprocessor-based temperature compensation for precise measurement across varying conditions, this stainless steel instrument detects flow velocities from 0.15 to 6.6 ft/sec while providing field-adjustable setpoints via an intuitive LED bargraph display and potentiometer adjustment. The compact insertion-type design minimizes pressure loss while withstanding operating pressures up to 580 PSIG and temperatures from -4°F to 176°F, with clean-in-place capability up to 250°F for sanitary applications. Available with multiple connection options including NPT, BSP, and M12x1 threads, and configurable with either NPN or PNP transistor outputs in normally open or normally closed configurations, this versatile instrument adapts perfectly to diverse industrial requirements. Protected to NEMA 4/IP65 standards and constructed with premium 316L stainless steel wetted parts, the KAL-D offers exceptional durability alongside sophisticated electronic protection features including short-circuit safeguards for its 400mA switching capacity.

The versatile KOBOLD KSM Plastic Flowmeter delivers reliable flow measurement for aggressive chemicals and corrosive substances with its all-plastic construction featuring no metal components in the fluid path. Available with either durable Polysulfone (for highly corrosive applications) or Trogamid® measuring tubes (for moderately aggressive media), this variable area flowmeter provides ±4% full scale accuracy while withstanding pressures up to 145 PSI and temperatures to 140°F. The device's highly visible red PVDF float and large dual-scale display show both direct flow readings (GPM/SCFM) and percentage values, making monitoring simple across a wide measurement range from 0.06 to 264 GPM for liquids or 0.5 to 400 SCFM for gases. Optional bistable reed contact switches with IP65 protection can be easily added for automated flow control and alarm functionality, with convenient field-adjustable markers ensuring precise setpoint positioning. Featuring robust PVC connections (available in glue socket or NPT threaded options) and chemical-resistant EPDM seals, this shock-resistant instrument provides reliable service in water treatment, chemical processing, laboratory, and other demanding environments where metal flowmeters would quickly deteriorate.

The innovative KOBOLD SMN Flow Switch delivers exceptional performance with its ability to detect extremely low liquid flow rates while maintaining minimal pressure drop during high-volume operation, making it ideal for critical process monitoring applications. Unlike conventional designs, this ingenious device utilizes a magnetic float suspended in a cylindrical tube that works against a compression spring, activating an adjustable reed contact when flow reaches the predetermined threshold. Available in brass construction rated to 3600 PSIG or stainless steel rated to an impressive 5000 PSIG, the SMN provides reliable switching between 0.4-13 GPM (on) and 0.25-1 GPM (off) while operating in temperatures up to 212°F. The NEMA 4X/IP65 rated housing with DIN 43650 connection ensures dependable performance in demanding industrial environments like cooling circuits, high-pressure cleaning systems, and contaminated media control applications. Featuring vertical or horizontal mounting flexibility and CSA-approved electrical options including standard N/O or optional SPDT contacts, this compact flow monitor combines precise low-flow detection with remarkable high-flow handling capability in a single, maintenance-friendly package.