1/5
Type series: SRV-_-10-
Reference: 400-P-467501-EN-04/03.2022
- Stack valve
- Interface to ISO 4401-05-04
- Stack-mounting body with temporary corrosion
protection
- Stackable valve elements
- High degree of exibility due to the possibility of
dierent combinations
Lock valve
Check valve
Q
max
= 120 l/min, p
max
= 350 bar
direct acting, poppet type
Type series: SRV-_-10-
Description
The check valves, series SRV…, are size 10, stack-
mounting valves with interface to ISO 4401-05-04.
They are designed on the poppet/seat principle and
are used for the leak-free blocking of actuators.
Long service life is achieved by using a special ma-
terial on the valve seat. There are dierent versions
available. These valves are mainly used in mobile and
industrial applications, and provide high exibility for
stackable system solutions. For installation, please re-
fer to the section related data sheets.
2/5
Type series: SRV-_-10-
Reference: 400-P-467501-EN-04/03.2022
Symbol
PT BA
SRV-P-…
PTBA
SRV-T-…
PT
BA
SRV-PT-…
PTBA
SRV-ABZ-…
PTBA
SRV-AZ-…
PT
BA
SRV-BZ-…
PTBA
SRV-ABA-…
PTBA
SRV-AA-…
PT
BA
SRV-BA-…
Technical data
General Characteristics Description, value, unit
Function group Lock valve
Function Check valve
Design Stack valve
Controls direct acting
Characteristic poppet type
Construction size nominal size 10
Mounting attitude unrestricted
Weight 2.0 kg
Interface according to ISO 4401-05-04
Minimum ambient temperature - 30 °C
Maximum ambient temperature + 80 °C
Surface protection Stack-mounting body with temporary corrosion protection
Sealing material see ordering code
Seal kit order number
NBR: DS-004-N / FKM: DS-004-V
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Type series: SRV-_-10-
Reference: 400-P-467501-EN-04/03.2022
Hydraulic Characteristics Description, value, unit
Maximum operating pressure 350 bar
Maximum ow rate 120 l/min
Flow direction see symbol
Hydraulic uid
HL and HLP mineral oil according to DIN 51 524; other uids
on request!
Minimum uid temperature
- 30 °C
Maximum uid temperature + 80 °C
Viscosity range 10 … 650 mm²/s (cSt)
Recommended viscosity range 15 … 250 mm²/s (cSt)
Minimum uid cleanliness (cleanlineless class according to ISO
4406:1999)
class 20/18/15
Opening pressure 0.5 bar
Performance graphs
measured with oil viscosity 33.0 mm²/s (cSt)
Δp = f (Q) Pressure drop-ow rate characteristic
40 6020
08
0 100
120
Q [l/min (gpm)]
(31)
(10) (15) (21) (26)(5)
2 (30)
6 (85)
8 (120)
10 (140)
0
p = [bar (psi)]
∆
400-PG-0681
4 (60)
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Type series: SRV-_-10-
Reference: 400-P-467501-EN-04/03.2022
Dimensions and sectional view
34.5
(1.36)
70
(2.76)
90
(3.54)
12
(.47)
18
(.71)
46
(1.81)
(2.13)
54
P
A
B
T
T1
Beispiel für die Masseinheit:
Example for the dimensional units:
(.031) =
0.031''
inch
0.79 = 0.79 mm millimeter
Ø12.42×1.78
5×
5/5
Type series: SRV-_-10-
Reference: 400-P-467501-EN-04/03.2022
Related data sheets
Reference Description
400-P-050101 Interface ISO 05 (Size 10) according to ISO 4401-05-04
info.ch@bucherhydraulics.com www.bucherhydraulics.com
© 2022 by Bucher Hydraulics AG Frutigen, 3714 Frutigen, Switzerland
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The
information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual
improvement, we reserve the right to amend the product specifications contained in this catalogue.
ATTENTION!
Only qualied personnel with mechanical
skills may carry out any maintenance work.
Generally, the only work that should ever be
undertaken is to check, and possibly replace,
the seals. When changing seals, oil or grease
the new seals thoroughly before tting them.
Ordering code
S
Ex.
RV
$
1
_
-

-
59
6 3
-
P
10
0,5
BZN
= coating ZnNi (on request)
N
= NBR (nitril-butadien-rubber / BUNA) seals (standard)
V
= FKM (fluorocarbon rubber / VITON) seals
(special seals - please contact BUCHER)
1…9
=
GHVLJQVWDJHRPLWZKHQRUGHULQJQHZXQLWV
--
T
PT
AA
AZ
BA
BZ
ABA
ABZ
= stack valve
= check valve
= function in P
= function in T (only A-side)
= function in A, flow outlet
= function in A, flow inlet
= function in B, flow outlet
= function in B, flow inlet
= function in A and B, flow outlet
= function in A and B, flow inlet
= function in P and T
(only A-side) (on request)
= nominal size 10
= opening pressure 0.5 bar against check valve
(blank)
= temporary corrosion protection (standard)
A
…Q = VWDQGDUGPRGHOVHHUHOHYDQWGDWDVKHHWV
Z…R
= VSHFLDOIHDWXUHVSOHDFHFRQVXOW%8&+(5
Installation information