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KBU3000 Mining Explosion-Proof Float Level Switch
The KBU3000 mining explosion-proof float level switch monitors liquid levels in sumps, water tanks, oil tanks, acid-base solutions, and wastewater containers. It suits both conductive and non-conductive liquids, including those with suspended solids. Featuring a reed switch for long service life and inert gas protection for safe load interruption, it enhances automation and control in underground and surface mining applications.
Mining Level Instruments

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Overview:

Measurement Type: Float ball level sensing

Applications: Level control for water, oil, acid-base solutions, wastewater, and other conductive/non-conductive liquids

Explosion-Proof Rating: Exdb Ⅰ Mb, compliant with GB/T3836 standards

Special Features: Can be used in pressurized closed tanks (max pressure 1.6 MPa)

Material: Stainless steel 304

Installation: Vertical installation with downward guide rod


Key Technical Specifications:

Control Medium Temperature: (-20 to 100)°C

Working Pressure: ≤1.6 MPa

Medium Density: ≥0.4 g/cm³

Medium Viscosity: ≤0.05 Pa.s

Measuring Depth: (200–3000) mm

Accuracy Level: 1st grade

Output Signal: Passive switch signal (normally open contacts), reed switch contact capacity: 250V/2A, lifespan of 5×10⁵ cycles

Explosion-Proof Mark: Exdb Ⅰ Mb

Protection Rating: IP54 (GB/T4208 compliant)

Vibration Resistance: <20 m/s²

Number of Switches: Up to 5 reed switches, user-defined

Material: Stainless steel 304

Weight: 4 kg

Explosion-Proof Design: Stainless steel explosion-proof housing, IP54 protection, cable entry meets GB/T3836.1 Ex cable entry requirements, sealed cable connections with reliable soldering and compression.

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