1.1.
E 5.175.4/09.03
Check Valves
RV5E
up to 350 bar
up to 30 l/min
Connection housing
Cartridge valve
V alve body
Spring
Closing cone
max. opening stroke
1. DESCRIPTION
1.1. GENERAL
HYDAC RV5E valves belong to
the group of check valves. In
accordance with DIN ISO 1219
these are valves for oil hydraulic
systems which allow flow in only
one direction while the other is
shut off.
Important advantages are:
• Standardised installation
dimensions mean that they are
flexible and suited to many
different applications.
• Their compact design provides
space--saving installation in
connection housings, control
blocks, etc. especially where the
installation space is confined.
• Simple assembly due to
service--friendly cartridge valve
technology.
• A wide range of connection
housings is available for optimum
mounting for a multitude of
applications.
1.2. FUNCTION
HYDAC RV5E check valves are
spring--loaded cone seat valves
for oil hydraulic systems.
The valve consists basically of a
valve body with a built--in valve
seat, a hardened, polished
closing cone and the spring.
When there is no flow through the
valve the spring keeps the closing
cone in the closed position. The
valve opens when the pressure
across port 1 is higher than the
pressure across port 2, including
the cracking pressure created by
the spring force. In the check
direction the closing cone is
pressed against the seat and
shuts off port 2 from port 1.
1.3. APPLICATIONS
HYDAC RV5E check valves are
used:
• where the flow must be prevented
from flowing back and a
leakage--free shut--off is required,
• as suction and pressure valves,
• as bypass valves, e.g. to protect
filter elements from damage,
• in HYDAC shut--off blocks,
• as a bridge rectifier circuit when
used with HYDAC flow control
valves or pressure relief valves.
Preferred areas of application
are:
• mobile hydraulics
• clamping hydraulics
• loading ramps
• conveyor belts
• system engineering
• handling devices
1.4. NOTE
• when fitting the valves into control
blocks and housings the
recommended torque must be
observed (see point 3)!
• the cracking pressure of the valve
increases by the amount of
pressure across port 2!
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2. TECHNICAL
SPECIFICATIONS
2.1. GENERAL
2.1.1. Designation and symbol
Check valve
Cone seat valve
2.1.3. Type of construction
Cone seat valve
2.1.4. Type of mounting
Cartridge valve
2.1.5. Mounting position
Optional
2.1.6. Weight
RV5E ... 0.08 kg
2.1.7. Direction of flow
from1to2freeflow
from 2 to 1 shut off
2.1.8. Ambient temperature range
min. --20 °C
max. +80 °C
2.1.9. Materials
Valve body: free--cutting steel
Closing cone: hardened and
polished steel
Seals: compatible with hydraulic
oil to DIN 51524 Part 1 and 2
(FPM and PTFE)
2.1.10. Type of connection
Suitable connection housings
with installation dimensions
06020 are available in various
models. See separate housing
brochure no. E 5.252../..
2.2. HYDRAULIC DETAILS
2.2.1. Nominal pressure
p
N
= 350 bar
across all ports
2.2.2. Operating fluid
Mineral oil to DIN 51524 Part 1
and Part 2
2.2.3. Pressure fluid temperature
range
min. -- 20 °C
max. + 80 °C
2.2.4. Viscosity range
min. 2.8 mm
2
/s
max. 800 mm
2
/s
2.2.5. Filtration
Max. permissible contamination
level of the operating fluid to
ISO 4406, class 21/19/16
(NAS 1638, class 10).
We therefore recommend a filter
with a minimum retention rate of
β
20
≥ 100.
The fitting of filters and regular
replacement of elements
guarantees correct functioning,
reduces wear and tear and
increases the service life.
2.2.6. Pressure drops, dependent on
flow rate
measured at ν =36mm
2
/s
and at t
oil
=50°C
2.2.7. Cracking pressure
p
o
=0.5bar
(others on request)
2.1.2. Model code
(also order example)
RV5E -- 01 X -- 0.5
Check valve
Model
01 = technical specifications as per this brochure
Series
(determined by manufacturer)
Standard models
Part no. (= order no.) Model code
710 166 RV5E--01X--0.5
Cracking pressure
0.5 = 0.5 bar (others on request)
Please quote part number when ordering.
Delivery for non--standard models is longer and the price is higher .
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5.
3. DIMENSIONS
4. 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 modifications.
RV5E
Installation dimensions 06020
Cartridge form tools
Countersink stock no. 170033
Reamer stock no. 1000768
Tap stock no. 1002648
Plug gauge stock no. 168840
Torque 30 +5Nm
SW 24
fitting depth
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