Oil Filters

The W940/1 is a heavy-duty spin-on oil filter, mainly used for screw air compressors, industrial engines, generators and heavy machinery lubrication systems. It efficiently intercepts metal wear particles, carbon deposits, sludge and fine contaminants in lubricating oil, keeps the oil circuit clean, reduces component friction and wear, and ensures stable operation of equipment under high-load and high-temperature conditions.

Key Features

Adopts high-efficiency composite filter media, with stable filtration accuracy and large dirt holding capacity to prolong service cycle and reduce maintenance costs.

Built-in anti-drain back valve prevents oil backflow after shutdown and avoids dry-start wear and damage to equipment internal components.

Internal bypass valve ensures continuous oil supply during cold start or filter clogging, maintaining normal lubrication and stable equipment operation.

Reinforced thick steel shell features excellent pressure resistance and deformation resistance, adapting to various harsh industrial working environments.

High-quality nitrile rubber seal ring provides outstanding heat resistance and aging resistance, achieving tight fitting and reliable oil leakage prevention.

Standard thread and overall dimension design supports fast installation and direct replacement without modification, offering high compatibility.

Technical Specifications

Part Number: W940/1

Type: Spin-on Oil Filter

Outer Diameter: 93 mm

Overall Height: 142 mm

Seal Outer Diameter: 71 mm

Seal Inner Diameter: 62 mm

Thread Size: 3/4-16 UNF

Filtration Rating: 10 μm

Filtration Efficiency: ≥ 99.5%

Bypass Valve Opening Pressure: 2.5 bar

Max Working Pressure: 2.0 MPa

Service Life: 2000–3000 operating hours

Application:Suitable for screw air compressors, industrial generators, construction machinery and other industrial equipment with matching installation standards.