ZYB waste oil gear pump

Compact, heavy-duty rotary gear pump engineered for reliable transfer of heavy oils and other low-impurity, low-lubricity liquids. The pump uses a hard-tooth-surface gear set, self-sealing lubrication and an automatic clearance-adjustment design to extend service life and reduce maintenance. Flow-path components are manufactured from high wear‑resistant materials to withstand abrasive non-metallic contaminants and provide 2–10× longer operating life than typical gear pumps in comparable applications.

Key features

• Hard-tooth-surface gears for improved wear resistance and long life
• Self-sealing lubrication and automatic clearance adjustment for consistent performance and reduced leakage
• Wear-resistant flow parts designed to handle particulate-laden, non-metallic impurities
• Compact construction with good self-priming capability and high volumetric efficiency
• Direct interchangeability with KCB-series common gear pumps (same external dimensions, installation footprint and technical parameters)

Technical limits and operating parameters

• Maximum liquid temperature: 200 °C
• Maximum viscosity: 150 mm2/s (cSt)
• Accepts non-metallic impurities up to 3 mm (do not use with metallic particles)
• Designed for continuous operation and stable discharge pressure

Typical applications

• Transfer and boosting of heavy oil, diesel, coal tar, lubricants and food-grade oils (where compatible)
• Fuel transfer and injection supply in burner and combustion systems
• Chemical processing, building materials, daily-chemical production lines, and grain/oil processing where fluids have limited abrasives

Exclusions and cautions

• Not suitable for highly corrosive liquids
• Do not use with media containing metal impurities or abrasive particles larger than 3 mm
• Unsuitable for highly volatile, low‑flash‑point fuels such as gasoline or aromatic solvents (benzene)

This pump is intended for industrial users who need a robust, long-lived gear pump that fits KCB-series installations while offering superior abrasion resistance and long-term pressure stability.