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28

2026-04


ZGB 150 Slurry Pump Discharge Gate Valve Lost Foam Casting Defect Identification and Field Repair

ZGB 150 slurry pump discharge gate valve lost foam casting defect identification and field repair: how to identify sand holes, shrinkage porosity, and slag inclusion, plus metal epoxy repair steps. Cost only 10%-20% of a new valve.

28

2026-04


SP 8/6 Submersible Pump Guide Bearing Wear Warning: Clearance Measurement and Replacement Standards

SP 8/6 submersible pump guide bearing wear warning: clearance measurement steps, replacement standards (wear limit 0.40 mm), and replacement interval recommendations. Prevent vibration and seal failure, extend pump life.

28

2026-04


150ZJ-50 Slurry Pump Double Volute Design: Radial Force Balancing and Bearing Load Reduction

150ZJ-50 slurry pump double volute design balances radial force, reducing bearing load by 50%-70% and extending bearing life by 30%-50%. Includes CFD simulation data and field measurement comparison.

28

2026-04


ZJQ 75 Submersible Slurry Pump Motor Winding Moisture Diagnosis: Application of Polarization Index (PI) and Dielectric Absorption Ratio (DAR)

ZJQ 75 submersible slurry pump motor winding moisture diagnosis: polarization index (PI) and dielectric absorption ratio (DAR) field test methods, interpretation criteria, and moisture treatment procedures – more accurate than single insulation resistance measurement.

28

2026-04


HH 300 High‑Head Pump Discharge Water Hammer Absorber Selection: Bladder Type vs. Diaphragm Type

HH 300 high‑head pump water hammer absorber selection guide. Bladder‑type vs. diaphragm‑type: structural principle, corrosion resistance, slurry compatibility, maintenance cost comparison. Preferred solution for tailings pipeline surge protection.

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