RE20380/2020-02-17, Bosch Rexroth AG
Contents
H7004
Check valve, cartridge design
Type M-SR
RE20380/2020-02-17
Replaces: 2018-05
Features
▶ Leakage-free blocking in one direction
▶ Various cracking pressures, optional (see type code)
▶ For installation in block designs as angle valve
▶ Size 8 … 30
▶ Series 1X
▶ Maximum operating pressure 420 bar
▶ Maximum flow 400 l/min
Type code 2
Functional description 3
Technical data 4
Characteristic curves 5
Installation bore 6
Related documentation 9
Bosch Rexroth AG, RE20380/2020-02-17
2 M-SR | Check valve
Type code
Type code
01 02 03 04 05 06 07
M-SR KE / 1X / *
01 Check valve, cartridge design
M-SR
Size (NG)
02 Size 8
8
Size 10
10
Size 15
15
Size 20
20
Size 25
25
Size 30
30
Unit design
03 Angle valve
KE
Cracking pressure (see characteristic curves page 5)
04 0 bar; without spring
00
0.2 bar
02
0.5 bar (standard)
05
1.5 bar
15
3.0 bar
30
5.0 bar
50
Series
05 Series 10 … 19 (10 … 19: unchanged installation and connection dimensions)
1X
Sealing material
06 NBR (nitrile rubber) (without designation)
FKM (fluoroelastomer)
V
07 Further details in the plain text
*
RE20380/2020-02-17, Bosch Rexroth AG
3 Check valve | M-SR
Functional description
Dimensions [mm]
Functional description
▼ Sectional view
A
L ‒0.1
B
1
1 Plug screw, separate order, see page 6 to8
Size L
–0.1
8 36.3
10 39.3
15 45.8
20 55.3
25 74.3
30 83.3
▼ Symbol
with spring without spring
Bosch Rexroth AG, RE20380/2020-02-17
4 M-SR | Check valve
Technical data
Technical data
General Size (NG) 8 10 15 20 25 30
Weight kg 0.03 0.05 0.08 0.14 0.32 0.47
Installation position Any
Ambient temperature range °C –20 to +80 (NBR seals)
–20 to +80 (FKM seals)
MTTF
D
value according to EN ISO 13849 Years 150 (for further details see data sheet 90294)
Hydraulic
Maximum operating pressure bar 420
Cracking pressure bar See characteristic curves page 5
Maximum flow l/min See characteristic curves page 5
Hydraulic fluid See table below
Hydraulic fluid temperature range °C –30 to +80 (for NBR seals)
–20 to +80 (for FKM seals)
Viscosity range mm
2
/s 2.8 to 500
Maximum admissible degree of contamination of the hydraulic fluid
Cleanliness level according to ISO 406 (c)
Level 20/18/15
1)
Notice
For applications outside these parameters, please
consultus!
1) Cleanliness levels specified for the components must be
maintained in the hydraulic systems. Effective filtration prevents
malfunctions and simultaneously extends the service life of the
components.
To select filters, visit www.boschrexroth.com/filter.
Hydraulic fluid
Hydraulic fluid Classification Suitable
sealing materials
Standards Data sheet
Mineral oils HL, HLP NBR, FKM DIN51524 90220
Biodegradable Insoluble in water HETG, HEES FKM ISO15380 90221
Soluble in water HEPG FKM ISO15380
Flame-resistant Water-free HFDU (glycol-based),
HFDU (ester base)
FKM ISO12922 90222
Containing water HFC (Fuchs Hydrotherm 46M,
Petrofer Ultra Safe 620)
NBR ISO12922 20223
Notice
▶ Further information and details on using other
hydraulic fluids are available in the above data sheets
or on request.
▶ Restrictions are possible with the technical valve data
(temperature, pressure range, service life,
maintenance intervals, etc.)!
▶ Biodegradable: If biodegradable hydraulic fluids are
used that are also zinc-solving, there may be an
accumulation of zinc.
▶ Flame-resistant – containing water:
– Life cycle as compared to operation with mineral oil
HL, HLP 30 … 100%
– Maximum hydraulic fluid temperature 60 °C
RE20380/2020-02-17, Bosch Rexroth AG
5 Check valve | M-SR
Characteristic curves
Characteristic curves
Pressure differential Δp dependent on the flow q
V
at cracking pressure
▼ Size 8
0
0
2
10
3020
4
6
8
10
35
00
05
15
30
50
02
Flow q
V
[l/min]
Pressure differential Δp [bar]
▼ Size 10
0
0
2
4
6
8
10
00
05
15
30
50
02
10 3020 40 50
Flow q
V
[l/min]
Pressure differential Δp [bar]
▼ Size 15
0
0
2
4
6
8
10
00
05
15
30
50
02
20 6040 80 100 120
Flow q
V
[l/min]
Pressure differential Δp [bar]
Notice
Characteristic curves measured with HLP46, ϑ
oil
= 40
±5
°C.
Size 20
0
0
2
4
6
8
10
00
05
15
30
50
02
50 100 150 200
Flow q
V
[l/min]
Pressure differential Δp [bar]
▼ Size 25
0
0
2
4
6
8
10
00
05
15
30
50
02
100 200 300
Flow q
V
[l/min]
Pressure differential Δp [bar]
▼ Size 30
0
0
2
4
6
8
10
00
05
15
30
50
02
200100 300 400
Flow q
V
[l/min]
Pressure differential Δp [bar]
Bosch Rexroth AG, RE20380/2020-02-17
6 M-SR | Check valve
Installation bore
Dimensions [mm]
Installation bore
▼ Angle valve "KE" for threaded plug according to ZN 10001
⌀0.1 A
⌀0.02 A
Z B
B
A
⌀D1
⌀D2
⌀D3
⌀D4
T1
⌀D6
⌀D5
45°
20°
T2
2)
T3
T4
2)
T5
T6
T7
1)
X
Rz 8
Rz 8
Rz 16
1
1 Area for outlet bore
NG Threaded plugs – Material no.
3)
p
Nom
[bar]
ØD1 ØD2 D3
4)
ØD4H8 ØD5 ØD6H7
NBR FKM
M
A
±10% [Nm]
8 R913011602 R913011610 55 420 23 17.1 G 3/8 14 8 13
10 R913011603 R913011611 80 420 28 21.4 G 1/2 18 10 17
15 R913011604 R913011612 135 420 33 26.8 G 3/4 24 15 22
20 R913011605 R913011613 225 420 41 33.8 G 1 30 20 28
25 R913011606 R913011614 360 250 51 42.5 G 1 1/4 38 25 36
30 R913011607 R913011615 400 250 56 48.5 G 1 1/2 44 30 42
NG T1
+0.1
T2 T3 T4 T5 T6 T7
+0.5
T8
+0.2
X Z
8 48.5 47.5 38.5 20 15 12 6 – 18 0.05
10 53.5 52.5 43.5 24 18 14 6 – 19 0.05
15 62 60.5 50 26 20.5 16 6 – 24 0.05
20 71.5 70 56.5 26 20.5 16 7 – 30 0.05
25 90.5 88 72.5 28 22 16 7 – 43 0.1
30 99.5 96.5 79.5 31 22 16 7 – 48 0.1
1) Dimension for countersinking the screw head. For lower installation
of the installation kit, dimension T7 is to be extended accordingly.
2) Depth of fit
3) Separate order. It is recommended to oil the threaded plugs.
4) Pipe thread according to ISO 228/1
RE20380/2020-02-17, Bosch Rexroth AG
7 Check valve | M-SR
Installation bore
Dimensions [mm]
▼ Angle valve "KE" for threaded plug according to RN 143.28 – up to 315 bar
⌀0.1 A
⌀0.02 A
0.015 B
B
A
⌀D1
⌀D2
⌀D3
⌀D4
T1
⌀D6
⌀D5
60°
20°
T2
2)
T3
T4
2)
T5
T6
T7
1)
X
Rz 8
Rz 8
Rz 16
Rz 16
Rz 16
1
2
T8
⌀0.1 B
30°
1 Area for outlet bore
NG Threaded plugs – Material no.
3)
p
Nom
[bar]
ØD1 ØD2 D3
4)
ØD4H8 ØD5 ØD6H7
NBR FKM
M
A
±10% [Nm]
25 R900323609 R900301957 300 315 56+0.5 44 M42×1.5 38 25 36
30 R900323610 R900301958 325 315 62+0.5 50 M48×1.5 44 30 42
NG T1
+0.1
T2 T3 T4 T5 T6 T7
+0.5
T8
+0.2
X Z
25 106.5 104 88.5 45 39 33 5 12 43 –
30 115.5 112.5 95.5 48 39 33 5 12 48 –
1) Dimension for countersinking the screw head. For lower installation
of the installation kit, dimension T7 is to be extended accordingly.
2) Depth of fit
3) Separate order, to be replaced in case of maintenance.
4) Metric ISO fine thread according to DIN 13
Bosch Rexroth AG, RE20380/2020-02-17
8 M-SR | Check valve
Installation bore
Dimensions [mm]
▼ Angle valve "KE" for plug screw according to RN 143.28 – up to 420 bar
⌀0.1 A
⌀0.02 C
⌀0.02 A
⌀0.05 A
⌀0.05 B
C
A
⌀D1
⌀D2
⌀D3
⌀D8 min
⌀D5
T2
2)
T4
2)
T7
1)
Rzmax 8
Rzmax 8
0.1 C
0.05 B
x
x
x
x
x
x
30°±1°
T1
X
T3
T5
T6
T8
1.5
1
= 0.008- / Pt 20
B
20°±1°
E
⌀D7 min
⌀D6
⌀D4
30°±5°
1 Area for outlet bore
NG Threaded plugs – Material no.
3)
p
Nom
[bar]
ØD1 ØD2H8 D3
4)
ØD4H8 ØD5 ØD6H7 ØD7 ØD8
NBR FKM
M
A
±10%
[Nm]
25 R901183335 R901253503 300 420 51+0.5 44 M42×2 38 25 36 37.58 35.58
30 R901183336 R901253504 325 420 61+0.5 50 M48×2 44 30 42 43.58 41.58
NG T1
+0.1
T2 min T3 T4 min T5 T6
+1
T7
+0.5
T8
+0.2
X
25 101.5 100 83.5 40 34 27 6 7.8 43
30 110.5 108.5 90.5 43 34 27 6 7.8 48
Notice
From an operating pressure greater than 350 bar,
thethreaded plug must be glued with Loctite 243 over
theentire thread circumference.
1) Dimension for countersinking the screw head. For lower installation
of the installation kit, dimension T7 is to be extended accordingly.
2) Depth of fit
3) Separate order, to be replaced in case of maintenance.
4) Metric ISO fine thread according to DIN 13
RE20380/2020-02-17, Bosch Rexroth AG
9 Check valve | M-SR
Related documentation
Related documentation
▶ Mineral oil-based hydraulic fluids Data sheet 90220
▶ Environmentally acceptable hydraulic fluids Data sheet 90221
▶ Fire-resistant, water-free hydraulic fluids Data sheet 90222
▶ Fire-resistant hydraulic fluids – containing water (HFAE, HFAS, HFB, HFC) Data sheet 90223
▶ Reliability coefficients according to EN ISO 13849 Data sheet 90294
▶ Hydraulic valves for industrial applications Operating instructions 07600-B
▶ Selection of filters www.boschrexroth.com/filter
▶ Information on available spare parts www.boschrexroth.com/spc
Bosch Rexroth AG, RE20380/2020-02-17
Bosch Rexroth AG
Zum Eisengießer 1
97816 Lohr am Main
Germany
Phone +49 9352 18-0
info.ma@boschrexroth.de
www.boschrexroth.com
© Bosch Rexroth AG 2020. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution as well as in the event of
applications for industrial property rights. The data specified within only
serves todescribe the product. No statements concerning a certain condition
or suitability for a certain application can be derived from our information.
The information given does not release the user from the obligation of own
judgment and verification. It must be remembered that our products are
subject to a natural process of wear and aging.
10 M-SR 1X | Check valve