Pvbz-Hd Basic Module (Hitch Double-Acting) - Danfoss PVG 32 Technical Information

Technical Information
PVBZ-HS/HD, hitch control valves

PVBZ-HD basic module (hitch double-acting)

12
PVG 32 AG Modules
Hitch single-acting valve module
B
PVLP 63
PO Check valve
Pilot Valve
PVM Manual
Actuator
Pressure Compensator with bleed off
PVBZ-HS parameters
Maximum pressure
Oil flow, rated, Port B, with press. comp.
Spool travel, standard
Dead band, flow control spool, standard
Max. internal leakage at 150 bar [2175 psi] and
2
21 mm /s [102 SUS]
Safety recommendations for the OEM and user.
To avoid unintended raise of the empty hitch the tank port on PVBZ-HS always has to be connected
direct to tank without any restriction or pressure build up possibilities.
This also ensures lowering in lower mode under cold conditions (high viscosity oil).
In case of manual actuation of the Hitch function (limp home mode) the power supply to the PVE has to
be disabled before the PVM (hexagon) can be actuated.
The OEM /end user needs to be aware of the dangerous operation when performing manual raise/
lowering of the hitch and be close to the hitch arms.
The double-acting hitch slice consists of the PVBZ valve-section with a flanged-on single/double-acting
selector (multi-valve) actuated by a PVC valve.
By energizing or de-energizing the PVC, the multi-valve shifts the slice between single- or double-acting
work-modes. This is of great benefit in hitch applications both for rear and front hitches. When the slice is
operating as single-acting, the A-port is connected to tank in the PVBZ body.
The PVBZ base of the PVBZ-HD has similar features as the PVBZ valve-slice. That is PO Check valves for low
leakage as well as compensator with bleed-off to eliminate pressure build-up between compensator and
work-ports.
11051935 • Rev AE • Feb 2014
Analogue or
Digital CAN
ISOBUS
T
Pilot supply
Inductive LVDT Sensor
Port P continuous 250 bar [3625 psi]
Port B 280 bar [4061 psi]
Port T, static/dynamic 25 bar/40 bar [365/580 psi]
100 l/min [26.4 US gal/min]
± 7 mm [±0.28 in]
± 0.8 mm [±0.03 in]
B → T, with PVLP 6.0 cm
PVE Actuator
P301 095
3 3
/min [0.37 in /min]