Sandwich plate throttle check valves (ZFDR)
Size 06 and 10
ZFDR valves are throttle check valves housed in a sandwich plate. These valves enable
full flow over the check valve to the cartridge main stage when closing. During opening of
the main stage, flow is limited over the orifice, regulating the opening speed. The opening
pressure of the check valve is approximately 0.3 bar.
Size 06
A
A
1
32
Sandwich plate housing (1)
Check valve (2)
Throttling orifice (3)
Size 10
A
A
1
32
4
Sandwich plate housing (1)
Check valve (2)
Throttling orifice (3)
Cartridge cover (4)
Sandwich plate with integrated throttle check valve (06/2014)
3
3
2
2
www.axxeron-hydrolux.com
Part Numbers and Valve Use
Size 06
Description Part number
M-ZFDRP06A4K0AS/A06 XEB15159-006M01
M-ZFDRP06A4K0AS/A12 XEB15159-002M01
M-ZFDRP06A4K0AS/A15 XEB15159-001M01
M-ZFDRP06A4K0AS/A20 XEB15159-007M01
M-ZFDRP06A4K0AS/A25 XEB15159-008M01
Check valve opening pressure is 0.3 bar; The number at the end of the description (AXX)
indicates the size of the throttling orifice in 1/10th mm. Example: A15 = 1.5mm orifice in A.-
Size 10
Description Part number
M-ZFDRP10A4K0AS/
CEE10;A20
XEB17522-004M01
M-ZFDRP10A4K0AS/
CEE10;A25
XEB17522-005M01
M-ZFDRP10A4K0AS/
CEE10;A30
XEB17522-006M01
M-ZFDRP10A4K0AS/
CEE10;A35
XEB17522-003M01
M-ZFDRP10A4K0AS/
CEE10;A40
XEB17522-002M01
Check valve opening pressure is 0.3 bar; the number at the end of the description (Axx)
indicates the size of the throttling orifice in 1/10th mm. Example: A15 = 1.5mm orifice in A. -
Seal materials - ZFDR valves are available in the following seal combinations:
N = NBR (Nitrile Butadiene Rubber) T = NBR + PU (Polyurathane Elastomer)
V = FKM (Fluorelastomer, Vition ) M = FKM + PU
Please use the first letter of the description to indicate the desired seal configuration.
®
Valve Use
In the example shown, an accumalator is
isolated using a position monitored active
cartridge.
The D2 orifice of the ZFDR valve limits the
the opening speed of the cartridge.
The closing speed is determined by the
size of the D1 orifice.
Note: when configuring a setup like this,
please take into consideration the balance of
forces acting on the cartridge poppet.
For further assistance please contact us.
system
Technical Data - Performance Curves
Technical Data
Symbol Unit Size 06 Size 10 Comment
Port pattern
ISO 4401-03-02-0-94 X
ISO 4401-05-04-0-94 X
Dimensions mm see dimensions on next page
Orientation any
Flow, maximum Q
max
L/min see performance curves below
T
min
°C -10 -10
Ambient temperature range
T
max
°C +80 +80
Working pressure
Inlet pressure, maximum
bar 350 350
bar 350 350
T
min
°C -10 (FKM/PU); -20 (NBR)
Fluid temperature range
T
max
°C +80 +80
ν
min
mm
2
/s
[cSt]
2,8 2,8
Fluid viscosity range
ν
max
mm
2
/s
[cSt]
380 380
Operating viscosity
ν
mm
2
/s
[cSt]
35 35
Weight m kg 1,2 3,7
Check valve opening pressure p
o
bar 0,3 0,3
other opening pressures available
on request
Performance curves
Size 06 Size 10
0
5
10
15
20
25
30
35
40
45
50
55
0 20 40 60
Q [L/min]
p [bar] .
1
3
4
1 - Plug
2 - 0.8 mm orifice
3 - 1.5 mm orifice
4 - 3.0 mm orifice
2
0
10
20
30
40
50
60
70
80
90
100
110
120
0 50 100 150 200
1
3
4
Q [L/min]
p [bar] .
1 - Plug
2 - 1.0 mm orifice
3 - 2.0 mm orifice
4 - 4,0 mm orifice
2
Outlet pressure, maximum
Dimensions
Size 06
Size 10
Required surface finish of
mating part
Required surface finish of
mating part
Access to the throttling orifice for both sizes is possible via the A port on the top
of the sandwich plate housing.
For more information contact us online.
office@axxeron-hydrolux.com
www.axxeron-hydrolux.com
© 2025 AXXERON HYDROLUX. All rights reserved. Changes reserved
ZFDRP-Throttle Check Sandwich Plates-EN - ZFDRP-CDL66651-001-06_2014-EN
