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220
Check Valve
SAE 8-Cartridge – 350 bar
RV08A-51
Poppet Type - Direct Acting
up to 38 l/min
up to 350 bar
The check valve RV08A-51 is a direct
acting poppet type check valve.
The valve allows ow from port 1 to 2,
while normally blocking oil ow in the
opposite direction. The guided check
remains closed by bias spring until
sufcient pressure is applied at port 1 to
open to 2.
Features
High performance version for high cycle rate
Main use to avoid uncontrolled and creeping movements of cylinders under load
and to close off parts from the system
Excellent stability over the entire ow range
All surfaces zinc-plated and corrosion proof
Minimal wear and extended service life due to hardened and ground parts
Low pressure drop due to CFD optimized ow path
Improved abrasion resistance - archieved by a guided and damped piston
Function
speciFications
Operating pressure: Max. 350 bar
Nominal ow: Max. 38 l/min
Internal leakage: 0.05 cm³ at 350 bar
Opening pressure: 0.35 bar (others on request)
Media operating temperature range: Min. –20 °C to max. +100 °C
Ambient temperature range: Min. –20 °C to max. +80 °C
Fluids: Hydraulic oil to DIN 51524 Part 1 + 2
Viscosity: Min. 10 mm²/s to max. 420 mm²/s
Filtration: Class 18/16/13 according to
ISO 4406 or cleaner
Installation: No orientation restrictions
Material: Valve body: steel
Throttle spindle:
ground steel
Seals: NBR (standard)
FKM (optional)
Back-up rings: PTFE
Cavity: FC08-2
Weights: 0.06 kg
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221
0 2 4 6 8 10
l/min
0
10
20
30
40
50
bar
0
1
2
3
psi
0 8 16 24 32
US gpm
perFormance
model code
RV08A-51-C-N-05
Basicmodel
Check valve, UNF 2-way cavity
Type
51 = standard, poppet type
Bodyandports
C = Cartridge only
SB3 = 3/8 BSP ports, steel body
AB3 = 3/8 BSP ports, aluminium body
Seals
N = NBR (standard)
V = FKM (optional)
Crackingpressure
05 = 0.35 bar (5 PSI)
(others on request)
*Standardlinebodies
Code PartNo. Material Ports Pressure
FH082-SB3 560919 Steel, zinc-plated 3/8 BSP 420 bar
FH082-AB3 3011423 Aluminium 3/8 BSP 245 bar
SealKits
Code PartNo. Material
Seal kit FH082-N 3033920 NBR
Seal kit FH082-V 3051756 FKM
Pressure drop
dimensions
millimeter (inch)
Subject to technical modications.
cavity
FC08-2
Formtools
Tool PartNo.
Countersink FC08-2 175473
Reamer FC08-2 175474
Flow rate
HYDACFluidtechnikGmbH
Justus-von-Liebig-Str.
D-66280Sulzbach/Saar
Tel: 0 68 97 /509-01
Fax: 0 68 97 /509-598
E-Mail: utec@hydac.com
NOTE
The information in this brochure
relates to the operating conditions and
applications described.
For applications or operating conditions
not described, please contact the
relevant technical department.
Subject to technical modications.
Measured at n = 34 mm
2
/s
T
Oil
= 46 °C
cracking pressure = 5 psi
Standardmodels
Modelcode PartNo.
RV08A-51-C-N-05 3347912
RV08A-51-C-N-70 560087
millimeter (inch)
Subject to technical modications.
Other models on request
7/8 hex torque 18.5 - 22 ft-lbs
3/4"-
16 UNF - 2A
thick