Description: Mounted on side‑walls or top covers of corn‑starch washing towers. Buoy‑actuated float triggers level‑dependent switching signals to interlock inlet/outlet valves and circulating‑pump start‑stop. It accurately stabilizes tower‑wash‑liquid elevation, prevents starch‑slurry overflow at high levels and pump dry‑running at low levels, securing continuous stable washing‑section operation.
‑ Anti‑fouling & easy‑to‑clean: Mirror‑polished food‑grade stainless‑steel float body with smooth dead‑corner‑free surfaces, resisting starch‑residue and fine‑fiber adhesion and supporting convenient on‑line flushing.
‑ Robust performance: Magnetic‑actuated switching principle with zero mechanical jamming points. Tolerates moderate starch‑slurry erosion and scaling; maintains reliable level‑trigger accuracy over long service cycles.
‑ Food‑grade compliant: All wetted components adopt 304 / 316L stainless steel; sealing elements meet food‑contact hygiene specifications.
‑ Adjustable set‑points: Switch trigger positions and control ranges configurable to match tower geometry and washing‑process requirements.
‑ Low‑maintenance design: Standard flange / threaded connections for full‑unit removal for inspection; float and guide‑rod wear‑parts are individually replaceable to cut spare‑part consumption.
‑ Float body: Hollow stainless‑steel buoy, primary level‑sensing element
‑ Guide‑rod assembly: Penetrates float, constrains vertical float travel, houses magnetic‑sensing unit
‑ Level‑switch module: Internal permanent magnet and trigger elements, outputs on‑off digital signals for pump‑valve interlock
‑ Mounting interface: Flange or threaded joint for pressure‑tight tower‑body attachment
‑ Sealing set: Food‑grade gaskets to eliminate medium leakage at connection points
1. Rod‑type multi‑point float‑level switch: Supports high‑/low‑level and multi‑set‑point configuration. The mainstream selection for corn‑starch washing towers; interlocks circulating pumps and inlet‑outlet valves to stabilize tower wash‑liquid levels.
2. Mechanical float‑operated fill valve: Pure‑mechanical float‑valve linkage, directly regulating make‑up‑water flow without electrical signals. Mostly deployed for auxiliary make‑up tanks associated with washing towers; simple, highly‑reliable construction.
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