Contact Platform Support
Help CenterPlate and Frame Oil Filter
Product Spotlights
Related Products
Plate and Frame Oil Filter
1 Product Overview
Plate and Frame Oil Filter (LY Series Filter Cart) is a pre-treatment oil purification equipment based on pressure penetration principle.Gear pump delivers contaminated oil into sealed filter chambers formed by stacked plates and frames. Oil penetrates filter paper under pressure; solid particles are trapped on and inside paper, while minor free water is adsorbed by paper fibers. Clean oil converges along plate grooves and flows out. Rising differential pressure indicates saturated filter paper. Stop the unit, release clamping screws and replace filter paper for continuous operation.
Classification Reminder
Plate and Frame Oil Filter: pre-treatment, large flow, solid removal priority, only adsorb minor free water.
High Solid Content Oil Purifier: heavy-duty cartridge filter cart for continuous circulation under high sludge load.
PFC Series Oil Purifier: standard precision cartridge cart for routine maintenance NAS5～8.
Ultra-precision Oil Purifier: submicron polishing unit targeting NAS3～6 ultra-high cleanliness.
Coalescence Dehydration Oil Purifier: coalescing unit for emulsion breaking & particle removal.
Vacuum Oil Purifier: integrated vacuum unit for deep dehydration, degassing and demulsification.
2 Main Structural Composition
Mobile Base AssemblyPainted carbon steel frame, silent lockable casters, push handle and anti-leak oil tray.
Fluid Transfer UnitGear pump, 3-phase motor (explosion-proof optional).
Plate & Frame Filtration Main BodyFixed end plate, movable pressure plate, filter plates, frames, clamping screw rods, gaskets and filter paper.
Pre-Protection UnitInlet metal strainer to trap large hard debris and protect pump.
Monitoring ComponentsInlet & outlet pressure gauges to monitor element clogging differential pressure.
Pipe AccessoriesOil-resistant suction/discharge hoses, quick couplings and vent valve.
3 Working Principle
Pressurized Delivery StagePump draws contaminated oil; fluid firstly passes inlet strainer to eliminate large debris and avoid pump abrasion.
Plate & Frame Deep Filtration StageOil enters stacked sealed chambers and penetrates filter paper under pressure. Metal chips, dust and sludge are intercepted; filter paper fibers adsorb free water and soft colloids.
Clean Oil Collection & Discharge StagePurified oil flows along plate guide grooves and exits for tank circulation or equipment oil filling.Contaminant accumulation raises differential pressure. Shut down at upper pressure limit, loosen screw rods and replace all filter paper before restarting.
Important Notice: This unit only removes free water via paper adsorption. It cannot process emulsified water. Coalescing or vacuum purifier is required for heavily emulsified oil.
4 Basic Technical Parameters
Standard Flow Models: LY-30 / 50 / 80 / 100 / 150 / 200 L/minNormal Working Pressure: ≤0.25 MPaMax Allowed Pressure: ≤0.6 MPaOptional Accuracy: 5 / 10 / 20 μmApplicable Media: transformer oil, turbine oil, hydraulic oil, gear oil, industrial lube oil, quenching oilApplicable Viscosity: ≤160 cStOperating Temperature: 5～75℃Power Supply: AC380V 3-phase 50Hz (explosion-proof control optional)Frame Material: Cast Iron / 304 Stainless SteelApplication Position: solid contaminant removal, minor free water adsorption, oil pre-treatment
5 Core Product Advantages
Mature proven design with high throughput, ideal for bulk oil pre-treatment and upstream protection for high-grade purifiers.
Universal filter paper with low cost and easy replacement; pressure gauge enables straightforward site management.
High-strength cast iron frame with stable pressure resistance; stainless steel option available for anti-corrosion demands.
Dual-function design for both bypass circulation filtration and direct oil transfer & filling.
Flexible mobile trolley suitable for multi-point operation at substations & oil depots, preferred for transformer on-site maintenance oil filling.
Multiple units can operate in parallel to expand capacity for centralized purification in large oil storage yards.
Stable running performance, easy overhaul, sufficient spare parts and controllable long-term maintenance cost.
Applicable for new oil incoming filtration and waste lubricant regeneration pre-treatment.
6 Installation, Commissioning & Maintenance Specification
Place unit on flat ground and lock casters. Avoid pumping sludge directly from tank bottom.Lay filter paper flat without wrinkles during commissioning; clamp plates evenly to prevent oil bypass.Vent all air inside piping and plate chambers before startup and verify stable pressure under no-load operation.Monitor differential pressure continuously. Replace filter paper timely once pressure reaches upper limit to avoid contaminant penetration and secondary pollution.Cut power and fully depressurize before paper replacement. Clean residual sludge inside plate grooves and inspect gaskets.Disassemble plate frame for sludge removal and dry storage during long shutdown to avoid dirt buildup caused by damp filter paper.
7 Common Faults & Solutions
Fast DP rise, filter paper clogged rapidlyCauses: excessive inlet solid load; no upstream settling; over-fine filter paper selectedSolutions: install pre-settling tank or upstream coarse filter; adopt larger-pore pre-treatment paper
Oil leakage between plate jointsCauses: wrinkled uneven paper; uneven clamping force; aged damaged gasketsSolutions: re-lay filter paper flat; tighten screw rods evenly diagonally; replace sealing gaskets
Insufficient pump flow & weak suctionCauses: air leakage on suction line; clogged inlet strainer; high viscosity at low temperatureSolutions: tighten hose connections; clean suction strainer; install pipeline heater if required
Poor water removal effectCauses: oil contains emulsified water; filter paper saturated with waterSolutions: switch to water-absorbent filter paper; adopt coalescing/vacuum purifier for emulsified oil
Filtration bypass, unsatisfactory outlet cleanlinessCauses: broken filter paper; insufficient clamping clearance between platesSolutions: install brand-new filter paper; re-clamp the whole plate frame evenly
8 Standard Supply List & Optional Accessories
Standard Supply List
Mobile frame, gear pump & motor assembly, inlet strainer assembly, plate & frame set, manual clamping screw mechanism, inlet/outlet pressure gauges, suction & discharge oil-resistant hoses, complete sealing set, standard filter paper, flow direction nameplate, operation manual.
Optional Accessories
Explosion-proof motor & control cabinet, electric clamping unit, pipeline electric heater, sampling valve, overflow protection valve, 304 stainless steel anti-corrosion plate frame, quick disconnect couplings, spare filter paper packages.
Send Inquiry to This Supplier
You May Also Like
-
ZCQF Cyclone Steam‑Water SeparatorNegotiableMOQ: 1 Unit
-
MGLS Vacuum Steam‑Water SeparatorNegotiableMOQ: 1 Unit
-
Multi‑Cartridge Self‑Cleaning FilterNegotiableMOQ: 1 Unit
-
Y‑type StrainerNegotiableMOQ: 1 Unit
-
OF7 Hand‑held Oil PurifierNegotiableMOQ: 1 Unit
-
Vertical Self-cleaning StrainerNegotiableMOQ: 1 Unit
-
Hand Brush Basket StrainerNegotiableMOQ: 1 Unit
-
PFC Series Oil PurifierNegotiableMOQ: 1 Unit
-
Coalescence Dehydration Oil PurifierNegotiableMOQ: 1 Unit
-
Fan Pipeline FilterNegotiableMOQ: 1 Unit
