Tech Note
Pump side modules PVPV
and PVPVM for pumps with
variable displacement
DKMH.PN.500.DC.02 replaces DKMH.PN.500.DB.02
Introduction
Versions and code
numbers
With the introduction of PVPV and PVPVM,
Danfoss is now able to supply pump side
modules for systems with variable pumps. The
new modules offer the following advantages:
• 1" P- and T-connection ports
• Lower pressure drop
• PVPVM enables the use of LS-pumps with
flows up to 230 l/min
• Relief of pressure peaks with PVLP 63
Symbol
Description
Codenumbers
P og T = G1
PVPV
Closed center pump side module
for pumps with variable
displacement
PVPV: To be installed in the
same way as the standard
range of PVP 32 pump side
modules (see page 2).
With pilot supply for electrical
actuation
157B5938
Max pump pressure = 350 bar
Max. pump flow = 150 l/min.
PVPV
Closed center pump side module
for pumps with variable
displacement
With pilot supply for electrical
actuation
With chock and suction valve PVLP 63
157B5941
Max pump pressure = 350 bar
Max. pump flow = 150 l/min.
PVPVM
Closed centre pump side module
for pumps with variable
displacement
PVPVM: To be installed as
"mid inlet", i.e. that PVB 32
is to be mounted on both
sides of the pump side
module (see pages 2, 3 and
belonging specification on
page 4).
With pilot supply for electrical
actuation
157B5937
Max pump pressure = 350 bar
Max pump flow = 230 l/min
PVPVM
Closed centre pump side module
for pumps with variable
displacement
With pilot supply for electrical
actuation
With chock and suction valve PVLP 63
157B5940
Max pump pressure = 350 bar
Max pump flow = 230 l/min
01-2000
DKMH.PN.500.DC.02 520L0222
Book 8 partition 3
www.danfoss.com/fluidpower
PVPV
When ordering PVPV fitted
with PVLP 63, please state
the sales- and code No. in
space 0 in the order form.
Also, always state the
PVLP 63 opening pressure
in space 0.
Example
0 157B 5941
p = 100 bar
157B 2100
157B
-
PVPVM
To order PVG 32 fitted with
PVPVM, use standard order
form HZ.57.A3.52
When ordering PVPVM fitted
with PVLP 63, please state
the sales- and code No. in
space b in the order form.
Also, always state the
PVLP 63 opening pressure
in space 0. (see example
page 4)
Flowcharacteristics for
PVPV/PVPVM
Flow from PVB (without pressure compensator) left and
rigth of PVPVM respectively.
Set pressure difference between pump pressure
and LS signal = 10 bar
Set pressure difference between pump pressure
and LS signal = 15 bar
(For flow characteristics on
PVPV, see catalogue
HK.57.B1.02 page 23)
Note that under certain circumstances systems with
large pump flows may occasionally generate pressure
peaks.
For advice on systems of
this nature, please contact
the Danfoss sales organisation for hydraulics.
2
The oil flow depends on the pressure difference between pump pressure and LS-signal. Normally, the
pressure difference can be set on the LS-pump control.
DKMH.PN.500.DC.02 520L0222
Dimensions
PVPVM
MA og LS: G 1/4
For dimensions on PVPV and other PVPVM measures, see catalogue HK.57.B1.03.
Stay bolt set, PVAS for
PVPVM
In PVG 32 valve groups fitted
with PVPV use standard
PVAS, 157B8001 - 8010
Qty., basic module
L1
L2
L3
Code number
Weight (kg)
2
3
4
5
6
7
8
9
10
166
214
262
310
358
406
454
502
550
213
262
311
360
409
458
507
551
600
131
179
227
275
323
371
419
467
515
157B8022
157B8023
157B8024
157B8025
157B8026
157B8027
157B8028
157B8029
157B8030
0,3
0,35
0,45
0,5
0,55
0,65
0,7
0,75
0,85
DKMH.PN.500.DC.02 520L0222
3
PVG No.
Proportional Valve PVG 32
Specification
Customer
Subsidiary/Dealer
Application
Function
A-Port
a
157B 3171
b
157B 2100
a
157B
b
157B 2100
a
157B 3171
b
157B 2001
a
157B 3171
b
157B 2002
a
157B 3171
b
157B 2250
a
157B
b
157B
a
157B
b
157B
a
157B
b
157B
a
157B
b
157B
a
157B
b
157B
-
0
1
157B
2000
p=
100
157B
6130
LSA
2
157B
LSA
3
4
bar
5940
-
157B
6233
LSA
100
157B
6230
LSA
5
6
157B
6233
LSA
220
157B
bar
157B
bar
157B
LSA
10
bar
bar
LSA
9
bar
157B
LSA
8
bar
bar
LSA
7
bar
bar
157B
LSA
bar
11
157B
2000
12
157B
8024
Filled in by
157B
-
157B
-
157B
7004
LSB
B-Port
13
157B
4216
c
bar
157B
2100
b
157B
-
13
157B
-
c
LSB
-
bar
157B
-
b
157B
7023
13
157B
4016
c
LSB
100
bar
157B
2001
b
157B
7002
13
157B
4016
c
bar
157B
2150
b
LSB
157B
7021
13
157B
4116
c
LSB
220
bar
157B
2250
b
157B
13
157B
c
LSB
bar
157B
b
157B
13
157B
c
LSB
bar
157B
b
157B
13
157B
c
LSB
bar
157B
b
157B
13
157B
c
LSB
bar
157B
b
157B
13
157B
c
LSB
bar
157B
b
Date
Example of a specification for a PVG 32 valve group (shown on page 3) fitted with PVPVM, 157B5940.
Note that the specification must be filled in to correspond to the valve group seen from above.
4
DKMH.PN.500.DC.02 520L0222