Open/Closed center PVP with PPRV
The Open Center/Closed Center PVP with integrated pilot pressure reduction valve (PPRV) is intended for
use with fixed or variable displacement pumps in applications where the application manufacturer does
not determine the pump type.
The modules allow an easy switch between Open Center and Closed Center configuration by means of an
external hexagon selector key. Variants also feature an LS boost functionality, increasing the LS pressure
to the pump LS regulator with a constant 6 bar, compensating for potential LS bleed-off and leakage.
The Open/closed center PVPV with PPRV features:
•
Integrated OC/CC selector
•
Integrated LS pressure relief valve
•
Threaded ports for P/T/LS and M measuring gauge
•
Integrated pilot pressure reducing valve (PPRV) for PVE or PVH/PVHC
•
Optional LS boost functionality
Hydraulic schematic
LS
T
P
M
OC
CC
Technical specification for PVP
Max. P-port continuous
Max. P-port intermittent
Max. T-port static/
dynamic
Max. rated flow
350 [5076 psi]
400 bar [5800 psi]
25/40 bar [365/580 psi]
140 l/min [37 US gal/min]
Technical specification
Parameter
Minimum
Recommended range
Maximum
Fluid temperature
-30°C [-22°F]
30 to 60°C [86 to 140°F]
90° [194°F]
Fluid viscosity
4 mm
2
/s [39 SUS]
12 to 75 mm
2
/s [65 to 347 SUS]
460 mm
2
/s [2128 SUS]
Fluid cleanliness
23/19/16 (according to ISO 4406)
Operating temperature
Ambient: -30 to 60°C [-22 to 140°F]
Technical Information
PVG 16 Proportional Valve Group
PVP Inlet Modules
©
Danfoss | December 2018
BC00000211en-000901 | 29
