Danfoss PPR09-POD Technical Information

Proportional Valves Technical Information

PPR09-POD

OPERATION

Proportional Pressure Reducing / Relieving Valve, Pilot Operated, Normally Open to Drain.
With no current to the coil, the “reduced pressure” (port 3) is connected to drain (port 4), while
blocking the inlet (port 2). As current is increased to the coil, inlet (port 2) is connected to
“reduced pressure” (port 3), proportionally increasing the “reduced pressure” as shown on the
performance curve(s). If the “reduced pressure” exceeds the setting induced by the coil, pressure
is relieved to drain (port 4). This 09 Series valve uses a 10 size cavity with an 08 size tube and coil,
providing an optimal product for high flow and low pressure, while minimizing pressure drop in
the system. This valve was formerly branded as XRP 044.

APPLICATION

Common applications include low-pressure proportional pilot control of clutches or hydraulically
piloting large directional spool valves. Refer to example circuits. Use the optional screen to help
protect the actuator from large particles. Select the robust coil for those extreme environmental
conditions – voltage extremes, high temperature, shock & vibration, chemicals, and/or water
ingression.

THEORETICAL PERFORMANCE

Shown with Standard Coil and Filter

Shown with Robust Coil and Filter

SPECIFICATIONS

Rated pressure 50 bar [725 psi]
Rated flow at 7 bar
[100 psi]
Weight 0.34 kg [0.75 lb]
Hysteresis 6% maximum
Threshold current 0.15 A (12 VDC coil)

Maximum control current 1.2 A (12 VDC coil)

DIMENSIONS

Cavity SDC10-4
Standard Coil M13 20 Watt
Robust Coil R13 16 Watt

25 l/min
[7 US gal/min]

0.08 A (24 VDC coil)

0.6 A (24 VDC coil)

Robust Nut P/N 173800539
No coil O-rings needed.

SCHEMATICS

BC332375973113en-000101 • February 2020

PV - 57

DIMENSIONS

Proportional Valves Technical Information

PPR09-POD

mm [in]

EXAMPLE APPLICATION CIRCUITS

Cross-sectional view

ORDERING INFORMATION

BC332375973113en-000101 • February 2020