Danfoss PFD10-OD Technical Information
Proportional Valves Technical Information
Proportional Flow Divider
PFD10-OD
OPERATION
PDF10-OD: Proportional Flow Divider, 10 Size, Normally Open, Divider
This is a proportional, compensated, normally open, flow dividing, preengineered HIC. When there is no current applied to the coils, the inlet flow
is divided equally between ports A and B. As an example, if inlet flow is 40
LPM, the flow out Ports A and B will divide equally 20 LPM. The performance
curve below shows input flow examples of 40, 20 and 10 LPM. Minimum
inlet flow is 10 LPM (2.6 GPM). The flow ratio between ports A and B will
proportionally vary as current is provided to coils S1 or S2. As current
increases to coil S2, the flow to Port B will proportionally increase, while Port
A decreases, as shown in the graph. Inversely, as current increases to coil S1,
the flow to Port A will proportionally increase, while Port B decreases.
Note that this is not a combiner, the flow only exits Ports A and B. Connect the drain port DR to tank, limiting the
pressure on this port to 50 bar (720 psi).
APPLICATIONS
Proportionally divide the input flow between two motors or hydraulic circuits (like HICs). Circuits that can take
advantage of this pre-engineered HIC include any function where the motors or the HICs continuously require
flow, and you only need to proportionally manage the amount of flow between them. Achieve repeatable, loadindependent flow dividing with the built-in pressure compensator. See performance curve below for compensation
capabilities.
Note: For optimal performance, install with the solenoid valve in the horizontal position, reducing the chance for
Shown with Deutsch Coils
SPECIFICATIONS
Rated Pressure 230 bar [3335 psi]
Maximum Rated Flow
Maximum Pressure in
Port DR
Minimum Inlet Flow 10 l/min [2.6 US gal/min]
Weight including Coil 1.15 kg [2.53 lb]
Coil M16 26 Watts
Coil Voltage 12 V 24 V
Max. Control Current 1.5 Amp 0.75 Amp
Hysteresis < 4%
40 l/min
[10.6 US gal/min]
50 bar
[ 720 psi ]
THEORETICAL PERFORMANCE
SCHEMATIC
BC332375973113en-000101 • February 2020
PV - 53
DIMENSIONS
235.3
mm [in]
Proportional Valves Technical Information
Proportional Flow Divider
PFD10-OD
[9.26]
20mm
4-6 Nm [35-53 lbf * in]
Coil Nut Kit P/N 1740031
S1S2
89
105
[4.13]
[3.50]
[4.85]
APPROX 123
EXAMPLE CIRCUITS
Proportionally dividing
flow between two motors
109
[4.29]
n8.5 [0.335]
THRU HOLES 2 PLACES
[0.31]
8
82
[3.23]
Proportionally dividing
flow between two hydraulic
systems (HICs)
ORDERING INFORMATION
BC332375973113en-000101 • February 2020
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