DFH High Pressure Duplex Filter Assembly

The DFH series is designed to remove particulate and water from a variety of fluids including hydrogen seal oil, turbine lube oil, bearing lube oil, and FD-ID-PA fan lube. Applicable for wind turbine, boiler feed pump, mechanical/electro hydraulic control, and fuel handling systems.

Ideal for systems where filters must be serviced while continuous operation is not interrupted such as hydraulic, gearbox, and servo systems.

Max Operating Pressure: 3600 psi (248 bar)

 

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Operating Temperature

Fluid Temperature

30°F to 225°F

(0°C to 105°C)

Ambient Temperature

-4°F to 140°F

(-20C to 60C)

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Operating Pressure

DFH19

3600 psi (248.2 bar) max

DFH39

3000 psi (206.8 bar) max

ΔP Indicator Trigger

73 psid (5 bard)

Element Collapse rating

450 psid (31.0 bard)

materials of Construction

Head

Cast steel

Bowl

Cast steel

Housing Bypass Valve

Steel
Media Description

M

G8 Dualglass, our latest generation of DFE rated, high performance glass media for all hydraulic & lubrication fluids. βx[C] ≥ 1000 (βx ≥ 200)

A

G8 Dualglass high performance media combined with water removal scrim. βx[C] ≥ 1000 (βx ≥ 200)

W

Stainless steel wire mesh media βx[C] ≥ 2 (βx ≥ 2)

Fluid Compatibility

Biodegradable and mineral based fluids. For high water based of specified synthetics, consult factory.

Replacement Elements
DFH replacement elements
ΔP Factor
DFH ΔP factor
Max flow rates and ΔP factors assume υ = 150 SUS, 32 cSt. See filter assembly sizing guideline for viscosity conversion formula on page 22 for viscosity change.
Filter Sizing Chart
DFH filter sizing chart
Max flow rates and ΔP factors assume υ = 150 SUS, 32 cSt. See filter assembly sizing guideline for viscosity conversion formula on page 22 for viscosity change.