Pressure filter unit

suctionplatebypass

Overview
Dirt particles in the oil cause wear and damage to passenger car transmissions. Suction- and pressure-side transmission oil filters from MANN+HUMMEL ensure excellent oil cleanliness thanks to highly efficient filter media and reliably protect transmissions. The suction-side design as a flat filter element offers a large filter surface for high dust capacity and low differential pressure. Pressure-side transmission oil filters feature a plastic housing with integrated bypass valve and compact design suitable for limited installation spaces.

Technical features (table)
Technical features | Suction-side transmission oil filter | Pressure-side transmission oil filter
Volume flow range | Up to 70 l/min | Up to 70 l/min
Separation efficiency | Beta 22 µm(c) ≥ 200 (to ISO 16 889) | Beta 5 µm(c) ≥ 200 (to ISO 16 889)
Service interval | Lifetime application | Lifetime application
Operating temperature | 40 °C to +150 °C | 40 °C to +150 °C
Pressure drop | < 0,15 bar @ 24 mm²/s | < 0,5 bar @ 24 mm²/s

Product benefits

• Highly efficient filter media assures best oil cleanliness
• Optimal use of installation space
• Support grid for good pleat stability and low differential pressure
• Proven pleating technology provides large filter area, high dust holding capacity and low differential pressure

Suction-side transmission oil filters

• Injection-moulded pleat pack integrated in the filter housing for space efficiency
• Mesh-protected bypass valve ensures clean oil flow in extreme conditions

Pressure-side transmission oil filters

• Easy mounting
• Integrated bypass valve ensures oil flow even under extreme conditions

Further information
Clean oil for electric drives: modern transmissions, including eAxles and hybrid gearboxes, require efficient oil filtration to maintain performance. MANN+HUMMEL offers compact filter systems that integrate multiple functions for alternative propulsion systems.

Technical specifications

• Application: Transmission oil filtration for passenger cars (suction-side and pressure-side solutions)
• Volume flow range: up to 70 l/min
• Separation efficiency: suction-side Beta 22 µm(c) ≥ 200 (to ISO 16 889); pressure-side Beta 5 µm(c) ≥ 200 (to ISO 16 889)
• Service interval: lifetime application
• Operating temperature range: 40 °C to +150 °C
• Pressure drop: suction-side < 0,15 bar @ 24 mm²/s; pressure-side < 0,5 bar @ 24 mm²/s
• Design notes: suction-side — flat/injection-moulded pleat pack for large filter area and space efficiency; pressure-side — plastic housing with integrated bypass valve (ensures oil flow in extreme conditions)
• Benefits: high dust holding capacity, low differential pressure, good pleat stability, optimal installation space usage