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High Viscosity Oil Purifier
1 Product Overview
High Viscosity Oil Purifier (GLYC Series Mobile Filter Trolley) is developed to overcome purification challenges of heavy viscous oil. At ambient temperature, gear oil, thermal oil and heavy-duty lubricants feature high viscosity & poor fluidity. Conventional oil filters easily suffer insufficient suction, motor overload and rapid element clogging. Long-term contamination by solid particles and water leads to abrasive wear on bearings & gears and accelerated oil emulsification & aging.Contaminated high-viscosity oil enters constant-temperature preheating chamber first. Controlled heating reduces kinematic viscosity and improves fluidity. The dedicated viscous oil pump pressurizes and delivers fluid to multi-stage filters, where solid particles are trapped progressively by filter cartridges. Purified oil circulates back to the tank. The unit supports fresh oil filling filtration, offline purification of in-service oil and tank draining. Multiple lubrication systems can share one unit to reduce investment on stationary filtration equipment.
2 Main Structural Composition
Mobile Trolley Frame AssemblyCarbon steel welded base with wear-resistant universal wheels and push handle, stable gravity for convenient workshop transportation, reserved space for hose storage.
Special Positive Displacement Pump for Viscous OilLow-pulsation gear/spiral pump with reinforced mechanical seal for heavy oil transportation, matched with three-phase asynchronous motor and built-in overflow pressure stabilizing valve.
Constant Temperature Preheating SystemFlange-mounted stainless steel heating assembly with zoned temperature control; interlock over-temperature power-off protection prevents oil deterioration from overheating.
Multi-stage Precision Filter Housing GroupPressure-bearing cylinders with quick-twist covers for fast cartridge replacement without special tools. Installation positions for coarse, medium and fine filter inserts arranged sequentially.
Differential Pressure Gauge AssemblyInlet-outlet pressure gauge visually indicates clogging resistance as reference for element replacement.
Suction Pre-strainerExternal strainer assembly at inlet intercepts large debris to avoid internal pump scratch caused by hard particles.
Electric Control Protection CabinetMain power switch, thermal relay and phase sequence protection module integrated with start-stop buttons and fault indicator lamps.
3 Working Principle
After startup, high viscosity pump generates negative pressure to draw heavy oil from tank. Oil passes suction strainer to isolate large-size contaminants, then flows into preheating chamber for temperature rise to cut kinematic viscosity and pipeline flow resistance.Warmed pressurized oil enters filter group and penetrates multi-gradient cartridges from outside inward. Metal particles and sludge larger than nominal filter precision are retained on element surface. Clean purified high viscosity oil is delivered back to storage tank via outlet hose.Contaminants continuously accumulate on outer layer of cartridges, increasing flow resistance and differential pressure reading. Operators shut down and replace cartridges periodically according to pressure value.When equipped with optional vacuum coalescing module, three-phase separation of oil, water and impurities is realized to solve emulsification caused by water ingression in heavy oil.
4 Basic Technical Parameters
Applicable medium: ISO VG46～VG680 high viscosity gear oil, thermal oil, industrial lubricant, quenching oilHousing material: anti-corrosion painted carbon steel / optional 304 stainless steel fluid pathStandard flow rate: 25 / 40 / 63 / 100 L/minMax working pressure: ≤0.6 MPaApplicable kinematic viscosity: 10～380 cSt (max extended to 500 cSt under heating conditioning)Adjustable temperature range: 30～80℃Optional filtration precision: 3μm, 5μm, 10μm, 20μmPower supply: AC380V three-phase industrial powerRunning noise: ≤70 dB(A)Installation: wheeled mobile type, no fixed foundation required
5 Core Product Advantages
Combined solution of special viscous oil pump & constant-temperature preheating, solving low-temperature transportation difficulty and covering much wider viscosity range than ordinary oil filters.
Three-stage gradient filtration with high dirt holding capacity, extending cartridge service cycle and cutting long-term consumable expenditure.
Comprehensive electrical & hydraulic protections safeguard pump and cartridges under harsh conditions such as cold startup and element blockage.
Mobile trolley design enables flexible rotation among multiple lubrication stations with excellent return on investment.
Visual differential pressure monitoring supports standardized predictive maintenance and avoids massive oil contamination due to broken filter inserts.
Low heat flux heating system provides uniform warming to prevent local high-temperature coking and carbonization of high viscosity oil.
Flexible function expansion; basic impurity removal unit can be upgraded with vacuum dehydration module for oil-water separation at later stage.
Cost-effective domestic alternative; filter cartridges fully interchangeable with imported similar high viscosity filter units with abundant spare supply.
Optimized low-resistance pipeline reduces pump transportation energy consumption, more energy-saving for long continuous operation.
Stable continuous circulation operation applicable to industrial workshops with large temperature difference and heavy dust, suitable for 24-hour duty.
6 Installation, Commissioning & Maintenance Specification
Place on flat ground and lock wheels. Test motor rotation direction by jog operation before formal startup; reverse rotation will cause dry suction and pump damage.Submerge suction hose end below liquid surface as much as possible to reduce air ingress & cavitation. Raise temperature gradually on first startup; prohibit one-time adjustment to maximum setting.Monitor differential pressure gauge and heater status during daily inspection. Shut down and replace cartridges once pressure difference reaches upper limit; over-differential-pressure forced operation is forbidden.Run short no-load circulation after each shift to flush sludge inside housing; tidy hoses and wipe oil contamination on trolley.Drain residual oil from pipelines and filter housings before long-term storage. Electrical wiring must be completed by certified electricians; inspect cable insulation regularly.Long-term operation with water content exceeding design limit is prohibited. Vacuum coalescing dehydration module must be activated under severe water ingression condition.
7 Common Faults & Solutions
Low flow rate, weak pump suctionCauses: reversed motor rotation; air leakage in suction pipeline; excessive viscosity due to low oil temperature; excessive vertical suction heightSolutions: adjust power phase sequence; seal hose joints; increase preset heating temperature; reduce suction elevation
Severe running noise & internal pump knockingCauses: cavitation by air intake; heavily clogged cartridges; large hard particles inside oil; low tank liquid levelSolutions: locate & seal air leakage points; replace saturated cartridges; add upstream large-flow pre-filter; replenish tank liquid level
Fast differential pressure rise, rapid cartridge cloggingCauses: massive wear contaminants generated by upstream equipment; over-selected filter precision; colloidal asphalt sludge in mediumSolutions: inspect abrasion fault of host gears & bearings; select appropriate filter precision; add pre-sedimentation treatment
Heater fails to heat up / frequent over-temperature trippingCauses: scale & oil deposit on heating tube; offset temperature probe; abnormal thermostat parametersSolutions: shut down and clean carbon deposit on heating components; calibrate temperature sensor; reset upper & lower temperature limits
Frequent motor overload trippingCauses: insufficient preheating leading to excessive oil viscosity; pump internal jamming; low setting current of thermal relaySolutions: extend preheating duration; disassemble & clean pump body; readjust protection current of thermal relay
8 Standard Supply List & Optional Accessories
Standard Supply List
Mobile trolley frame, high viscosity pump assembly, constant temperature heating unit, multi-stage filter housing, standard gradient filter cartridges, differential pressure gauge, inlet & outlet hose set, electric control cabinet, complete sealing parts and fasteners.
Optional Accessories
Multi-precision replacement cartridges, vacuum coalescing dehydration module, extended delivery hoses, self-sealing quick couplings, remote temperature transmitter, 220V single-phase motor module, explosion-proof electric control kit.
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