"> Netzsch NEMO BO/BS
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Netzsch

NEMO BO/BS

Netzsch NEMO BO/BS — Sludge cake conveying, hopper feeding applications.

Components & Design

Component data being added…

Technical Data

Type Progressing Cavity Pump with Integrated Feeding Screw
Application Dewatered sludge, dough-like materials
Design feature Integrated feed screw for solids handling

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Common failures & inspection points

Rotor and Stator Wear

Visual inspection of rotor for wear marks and stator material brittleness; measure stator inner diameter against wear limits; establish replacement schedule based on operating hours (minimum semi-annually for >16 hrs/day operation)

Mechanical Seal Leakage and Degradation

Check for dripping/leaking at shaft seal; inspect seal cartridge for damage; verify single-acting mechanical seal integrity through large inspection opening (FSIP design); replace seal through accessible cartridge design

Coupling and Drive Train Deterioration

Inspect sleeve coupling connecting rotor to coupling rod; check elastic coupling element for deformation; verify joint integrity (B, K, or flexible PA12 coupling rods); assess alignment after coupling or joint service

Seal Lubrication and Joint Condition

Regularly verify sealing integrity and lubrication of joints (minimum semi-annual inspection); replace seals and lubricants if degraded; prevent dry running (even few rotations damage stator); maintain pump case and check for dust accumulation >5mm

Bridge Building in Sludge (aBP-Module Systems)

Monitor discharge pressure for unexplained increases indicating sludge bridging; inspect hopper design for material accumulation; verify aBP-Module asynchronous bridge preventing mechanism function; confirm proper media flow in hopper

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #148109 · ✓ still in production