MF Medium Pressure Filter Assemblies

Hy-Pro’s MF90, MF110 and MF480 medium pressure filters are designed to protect sensitive components in hydraulic and transmission circuits. Install the series upstream of specific components or directly after the pressure pump in mid-flow systems to minimize risk of failure and costly system downtime. Ideal for use as a charge pump discharge filter or a pilot filter, and to protect components that are sensitive to particulate contamination and require clean pressurized fluid for reliable operation.

Max Flow Rate: 100 gpm (379 lpm)

Max Operating Pressure: 580 psi (40 bar)

 

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WEIGHT

MF90

L9: 5.2 lbs (2.36 kg)

MF110

L8: 6.2 lbs (2.82 kg)

L11: 7.0 lbs (3.18 kg)

MF480

L11: 10.5 pounds (4.76kg)

OPERATING TEMPERATURE

-20°F to 250°F

(-29°C to 121°C)

OPERATING PRESSURE

MF90

580 psi (40 bar) max

MF110

435 psi (30 bar) max

MF480

508 psi (35.1 bar) max

BURST PRESSURE

MF90

2000 psi (138 bar) max

MF110

1300 psi (90 bar) max

MF480

2000 psi (138 bar) max

ΔP INDICATOR TRIGGER

18 psid (1.2 bard) for 25 psid bypass and non bypass

ELEMENT COLLAPSE RATING

150 psid (10.7 bard)

MATERIALS OF CONSTRUCTION

Head

Cast aluminum

Bowl

Cast aluminum

MEDIA DESCRIPTION

M

G8 Dualglass, our latest generation of DFE rated, high performance glass media for all hydraulic & lubrication fluids. βx[C] ≥ 4000

A

G8 Dualglass high performance media combined with water removal scrim. βx[C] ≥ 4000

W

Stainless steel wire mesh media βx[C] ≥ 2

FLUID COMPATIBILITY

Petroleum and mineral based fluids (standard). For polyol ester, phosphate ester, and other specified synthetic fluids use fluorocarbon seal option or contact factory.

SIZING GUIDELINES

Filter Assembly Sizing Guidelines

Effective filter sizing requires consideration of flow rate, viscosity (operating and cold start), fluid type and degree of filtration. When properly sized, bypass during cold start can be avoided/minimized and optimum element efficiency and life achieved. The filter assembly differential pressure values provided for sizing differ for each media code, and assume 32 cSt (150 SUS) viscosity and 0.86 fluid specific gravity. Use the following steps to calculate clean element assembly pressure drop.

Sizing recommendations to optimize performance and permit future flexibility

  • To avoid or minimize bypass during cold start the actualassembly clean ΔP calculation should be repeatedfor start-up conditions if cold starts are frequent.
  • Actual assembly clean ΔP should not exceed 10% of bypassΔP gauge/indicator set point at normal operating viscosity.
  • If suitable assembly size is approaching the upper limitof the recommended flow rate at the desired degreeof filtration consider increasing the assembly to thenext larger size if a finer degree of filtration mightbe preferred in the future. This practice allows thefuture flexibility to enhance fluid cleanliness withoutcompromising clean ΔP or filter element life.
  • Once a suitable filter assembly size is determined considerincreasing the assembly to the next larger size to optimizefilter element life and avoid bypass during cold start.
  • When using water glycol or other specified synthetics, werecommend increasing the filter assembly by 1~2 sizes.
MF K Factors