Suction line filters 150 l/min universal hydraulic filters for the suction line

Suction line filters with flow up to 150 l/min (complete Spin-On canister filters of the AMF 601 MN series and replacement suction cartridges from AHC, Sofima, and Hydrolider brands) are professional filtration devices designed for continuous cleaning of the working fluid and protecting hydraulic pumps against solid contaminants. Mounted on the suction line (between the oil tank and the main pump inlet port) or directly on the tank wall, they constitute the primary barrier preventing metal shavings, sand, scale, and deposits from entering the power circuit. This category includes high-efficiency complete filters, heads, and replacement canister cartridges adapted for operation at working pressures up to 12 bar and a nominal flow of 150 l/min (for oil with a viscosity of 30 cSt / HL 30 class). An integrated bypass valve with a low opening threshold of 0.3 bar protects the hydraulic pump from cavitation and dry running during cold starts and increasing resistance on the filter element. Suction line filters 150 l/min are a reliable solution for use in construction, agricultural, and forestry machinery, as well as complex stationary industrial power units.

Application and technical characteristics of suction line filters 150 l/min

Hydraulic suction filters with a capacity of 150 l/min are commonly used in hydraulic power circuits with medium and high working fluid flow rates. Their task is to precisely filter the oil drawn from the main tank, which prevents accelerated wear of gears, pistons, and seals in the pump.

• High nominal flow up to 150 l/min: Ensures a free oil supply to the pump without creating dangerous negative pressure on the suction side.
• Standard filtration accuracy (125 µm): The filter mesh effectively captures mechanical particles without causing excessive flow resistance.
• Suction bypass valve (0.3 bar): Low emergency bypass opening pressure protects the pump from oil supply interruption and the destructive phenomenon of cavitation.
• 1 1/4" BSP threaded connections: Standardized internal threads (G 1 1/4") in aluminum and steel guarantee high safety and tightness of installation.
• Quick Spin-On canister service: Screw-on metal housing (e.g., AMF 601 MN AHC or Sofima) allows for efficient and tool-free replacement of worn consumable elements.

Why choose 150 l/min suction line filters at the HYDRON store?

Suction line filters from the AMF 601 MN series offered by the HYDRON store are manufactured according to the strict criteria of the ISO 9001 standard. They are characterized by high resistance to housing burst pressures up to 25 bar and full compatibility with standard mineral and synthetic oils. Remember that conditions in the suction circuit are extremely sensitive to changes in fluid temperature and viscosity. For this reason, engineers recommend choosing a suction filter with a flow capacity reserve of 30–40% relative to the supply pump output. This prevents the bypass valve from opening during startup with cold oil. For comprehensive construction and maintenance of the power system, we recommend selecting other compatible products from our offer, such as high-performance hydraulic pumps, flexible hydraulic suction hoses, supplementary return line filters and durable hydraulic control valves.

Technical specification

Frequently Asked Questions (FAQ)

Where is the 150 l/min suction line filter installed?

The 150 l/min suction line filter is installed on the inlet line before the hydraulic pump or screwed directly onto the oil tank wall.

Why does the bypass in a suction filter open at 0.3 bar?

The bypass valve has a very low opening threshold of 0.3 bar to immediately clear the oil supply in case of medium thickening or element clogging, protecting the pump from harmful cavitation.

How does the AMF 601 MN suction filter differ from the AMF 601 CV return filter?

The AMF 601 MN series (suction) has a 125 µm micron rating element and a 0.3 bar bypass valve. The AMF 601 CV series (return) has a 25 µm micron rating element and a 1.7 bar bypass valve.

How often should the element in a 150 l/min suction filter be replaced?

The filter element should be replaced periodically during machine inspections (usually every 500–1000 operating hours) or at least once a year before the winter season.