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Uncompensated PVBZ with POC
The uncompensated PVBZ is intended for controlling a work function where the function behavior in
terms of flow and pressures allows dependency on the load pressure of other functions used
simultaneously.
The Pilot Operated Check valve giving very low leakage will prevent cylinder creep.
The Uncompensated PVBZ with POC features:
•
Integrated LS shuttle network
•
Integrated POC
•
Optional T0 facility
Schematic
1
0
2
A
B
Technical specification for A/B-port
Max. continuous pressure
Max. intermittent pressure
Max. rated flow
350 bar [5076 psi]
420 bar [6090 psi]
125 l/min [33 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]
Part numbers for uncompensated PVBZ with POC
Part number
A/B-port
POC
157B6051
G½"
B-port
157B6052
A/B-port
157B6451
7/8–14 UNF
B-port
157B6452
A/B-port
157B6969
None – machined top
A-port
Technical Information
PVG-EX 32 Proportional Valve Group
PVB Basic Modules
©
Danfoss | June 2019
BC290860493426en-000103 | 45
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