Danfoss PVG 16 PVH/Covers, Техническая информация

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The generic PVP inlet module accessory platform includes the PVPX Electrical LS pressure unloading
valve, External pilot pressure adapters PVPC with or without check valve for all Open Center PVP with
PPRV.
•
PVPX Electrical LS Pressure Unloading Valve on page 33
•
PVPC without Check Valve on page 36
•
PVPC with Check Valve on page 37
PVPX Electrical LS Pressure Unloading Valve
The electrical LS pressure unloading valve is an accessory available for PVP inlet modules with PVPX
facility. The PVPX consist of a solenoid valve and a magnetic coil package, allowing the operator to relieve
the LS pressure to tank electrically.
Configuration variants also feature a Manual Override functionality to activate the PVPX manually:
•
Normally Open (NO),
•
Normally Open with Manual Override (NOMO)
There are two types of NOMO-configurations - PUSH, and PUSH & TURN. With the TURN function you can
keep the override function until you unlock it again.
•
Normally Closed (NC)
Configuration variants
Normally Open (NO) Normally Open with MOR (NOMO) Normally Closed (NC)
Relieving the LS pressure to tank results in a reduced system pressure level, which is determined by:
•
the sum of the tank and neutral by-pass pressure drop in a Open Center PVP configuration
•
the sum of the tank and standby-pressure in a Closed Center PVP configuration
PVPX with NOMO schematic
P
T
M LS
PVPX technical data
Voltage supply
12/24 V
DC
± 10%
Resistance @ 12 V
DC
7.2 Ω ± 7%
Resistance @ 24 V
DC
28.2 Ω ± 7%
Power consumption
20 W
Maximum LS response time
300 ms
Max. pressure drop @ 0.1 l/min [2.6 US gal/min]
2 bar [30 psi]
Technical Information
PVG 16 Proportional Valve Group
PVP Inlet Module Accessories
© Danfoss | December 2018 BC00000211en-000901 | 33