Danfoss PVG 16 - Safety in Application; Example of a Control System for Manlift

Open Center PVP with PPRV
The Open Center PVP inlet with integrated pilot pressure reduction valve (PPRV) is intended for use with
fixed displacement pumps in applications, where a valve group with electro-hydraulically or hydraulically
controlled work sections is desired (PVE or PVH/PVHC).
The Open Center PVP with PPRV features:
•
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 external pilot pressure port (Pp)
•
Optional LS unloading valve, PVPX
All modules can be manually activated with the PVM actuation.
Open center PVP with PPRV schematic
Pp
LS
T
P
M
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 | 13