Views: 5263 Author: JUSH PUMP Publish Time: 2026-10-21 Origin: Shanghai JUSH Pump
For factories running thermal oil circulation, lubrication stations, fuel transfer and oil blending lines, sudden pressure spikes and inconsistent oil delivery cause costly downtime. When filters clog or valves close accidentally, ordinary gear pumps lack overload protection. The sharp pressure surge cracks pump housings, damages gear sets and even ruptures pipelines. Many standard pumps also struggle with changing oil viscosity: they cavitate, lose flow efficiency or wear rapidly when switching between thin fuel oil and thick lubricants. Corrosive oil additives further speed up internal rust and failure.
Our KCB external gear pump solves these critical operational pain points. Equipped with an integrated safety relief valve, this positive-displacement oil pump automatically recirculates fluid when pressure exceeds the rated limit. Its optimized internal oil grooves reduce torque and bearing load for stable high-temperature operation. Stainless steel gear options are available for weakly corrosive oil media.
✅ Overpressure shock destroys pumps and pipelines Built-in safety valve provides overload protection. It limits system pressure and prevents pump breakdown caused by accidental blockage or misoperation, improving site safety and cutting unplanned shutdowns.
✅ Poor adaptability for different oil viscosity Works reliably across a wide viscosity range from 5 cst to 1500 cst. It handles lubricating oil, thermal hot oil, diesel fuel, vegetable oil and many industrial oils without frequent pump replacement.
✅ Fast wear from corrosive oil media Stainless steel gear construction resists weak corrosive oils and additives. It maintains stable volumetric efficiency and extends pump service life compared with ordinary cast iron pumps.
✅ High heat and low efficiency under continuous high-temperature working Optimized discharge groove design lowers friction torque and bearing load. Less heat generation supports long-running thermal oil circulation systems.
✅ Flexible customization for different industrial projects We offer custom displacement, port connections, sealing forms and explosion-proof motor configurations to match lubrication, fuel delivery and heat transfer systems.
Built-in safety relief valve for pressure overload protection
Stainless steel gear optional for corrosion resistance
Wide viscosity coverage: 5 ~ 1500 cst
Low torque design for high efficiency and less heat buildup
Explosion-proof motor available for flammable oil transfer
Simple structure, easy disassembly and maintenance
Thermal oil circulation, equipment lubrication systems, diesel & fuel oil transfer, edible oil delivery, waste oil transfer, chemical oil blending.
Send us your oil viscosity, working temperature, required flow and pressure parameters. Our engineering team provides professional pump selection and quotation.