Danfoss PVBZ Data sheet
Data Sheet
Module with Shock Valve
PVBZ
The PVG 32 valve was originally launched on the
market in 1988 with a range of high performance
electrical actuators.
In the late nineties, the program was extended to also
include new features such as low leak ports, special
inlet sections and special electrohydraulic actuator
options.
The special PVBZ load compensated module was
developed for applications, where integrated pilot
operated check valves in the work ports are required
to limit the port leakage.
The newest of the PVBZ have integrated shock valve
for removing any transient pressure spikes generated
by the load.
The new PVBZ basic module can be mixed with basic
modules PVB (with additional tank line T0) and offers
the following features.
Features
•
Integrated shock/anti-cavitation valve
(A- and B- port)
•
Pilot operated check (POC) valves in A/B
ports
•
Load independent module (build in
compensator)
•
Separated pilot pressure tank line (T0)
•
Can be combined with standard PVB
modules (with T0)
•
BSP/UNF port thread options
Available spools
•
Only main spools with check valves can
be used
•
4/3 versions in the flow range from 5–
100 l/min
•
4/4 versions with float in the flow range
from 5–100 l/min
•
option mounted PVE/PVM not possible
PVBZ with shock valve code numbers
Port Description Code No.
G ½ BSP 11018390
7/8 - 14 UNF 11018391
Comprehensive technical literature online
at powersolutions.danfoss.com
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Danfoss | Jun 2016 L1117892 | AI00000126en-US0202 | 1
Technical Specifications
A B
V310328.B
Max. pressure Port P continuous, Port A/B 350 bar [5076 psi]
Port T static/dynamic 25/40 bar [362/580 psi]
Oil flow, rated Port A/B and P 180 l/min [47 US gal/min]
Port A/B max. recommended 100 l/min [26 US gal/min]
Spool travel Standard ±7 mm [±0.28 in]
Proportional range ±5 mm [±0,22 in]
Float position ±7.5 mm [±0.30 in]
Max. internal leakage at 200 bar [2900 psi], 21 mm2/s A/B→T / PO check valve and shock valve 6 cm3/min [0.36 in3/min]
Oil temperature (inlet) Recommended 30 → 60°C [86 → 140°F]
Minimum -30 °C [-22 °F]
Maximum 90 °C [194 °F]
Ambient temperature -30 → 60 °C [-22 → 140 °F]
Oil viscosity Operating range 12 - 75 mm2/s [65 - 347 SUS]
Minimum 4 mm2/s [39 SUS]
Maximum 460 mm2/s [2128 SUS]
Filtration, max. contamination (ISO 4406) 18/16/13
Schematic
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already on order provided that such alterations can be made without changes being necessary in specifications already agreed.
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2 | © Danfoss | Jun 2016 L1117892 | AI00000126en-US0202
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