Throttle valve type ED,
throttle restrictor check valve type RD and RDF
Product documentation
D 7540
11-2014-1.3
Operating pressure pmax: 500 bar
Flow rate Q
max: 130 lpm
2/13 D 7540 - ED, RD, RDF - 11-2014-1.3
© HAWE Hydraulik SE
© by HAWE Hydraulik SE.
The forwarding and reproduction of this document, as well as the use and communication of its contents, are forbidden unless expresse-
ly permitted.
Any breach or infringement will result in liability for damages.
All rights reserved concerning patent or utility model application.
© HAWE Hydraulik SE
D 7540 - ED, RD, RDF - 11-2014-1.3 3/13
Contents
1 Overview of throttle valves type ED, restrictor check valves type RD and RDF......................................................... 4
2 Available versions, main data............................................................................................................................. 5
3 Parameters......................................................................................................................................................... 8
3.1 General............................................................................................................................................................... 8
4 Dimensions...................................................................................................................................................... 11
5 Installation, operation and maintenance information......................................................................................... 12
5.1 Intended application.......................................................................................................................................... 12
5.2 Assembly information......................................................................................................................................... 12
5.3 Operating instructions.........................................................................................................................................13
5.4 Maintenance information..................................................................................................................................... 13
4/13 D 7540 - ED, RD, RDF - 11-2014-1.3
© HAWE Hydraulik SE
1
Overview of throttle valves type ED, restrictor check valves type RD and
RDF
Throttle valves are a type of ow valve. They affect the ow rate for single and
double-acting consumers.
The restrictor check valve type RD and RDF combines the function of a ow valve
with a check valve. It regulates in one ow direction and permits free ow in the
other direction. Types ED and RD are adjustable.
The valve type ED, RD and RDF can be integrated directly in the line.
Features and benets:
■
Sensitively adjustable
■
Wear-resistant
Intended applications:
■
General hydraulic systems
Throttle valve type ED
© HAWE Hydraulik SE
D 7540 - ED, RD, RDF - 11-2014-1.3 5/13
2
Available versions, main data
Type ED
Single throttle valve
Circuit symbol: Section view:
1
Manual adjustment
2
Adjusting spindle (coding K) adjustable with tool (pin)
3
Annular gap throttle, consisting of bore edge and truncated cone (hardened)
Type RD
Restrictor check valve
Circuit symbol: Section view:
1
Check valve plate: closed position (throttled)
2
open position (free ow)
3
Bearing screw for check valve with travel stop journal to prevent unscrewing of adjusting spindle
4
Annular gap throttle, consisting of bore edge and truncated cone (hardened)
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© HAWE Hydraulik SE
Type RDF
Restrictor check valve with xed throttle
Circuit symbol: Section view:
1
RDF 11: Orice M4x0.4 ... 1.8
RDF 21: Orice M5x0.5 ... 2.0
Orice secured with screw locking
RDF 31 to 51: orice disc #0.8 ... 5.5 with retaining screw
Order coding example:
ED 31
RD 11
RDF 21 /1,0
K
Adjustability Table 3 Adjustment
Fixed throttle for type RDF Table 2 Fixed throttle for type RDF
Basic type and size Table 1 Basic type and size
© HAWE Hydraulik SE
D 7540 - ED, RD, RDF - 11-2014-1.3 7/13
Table 1 Basic type and size
Basic type and size Description Volumetric ow
Q (lpm)
Pressure
p
max
(bar)
Thread
(BSPP)
Circuit symbol
ED 11 12 G 1/4
ED 21 30 G 3/8
ED 31 60 G 1/2
ED 41 80 G 3/4
ED 51
Single throttle valve
F e G throttling in both ow
directions
130
500
G 1
RD 11, RD 112 12 G 1/4
RD 11 JIS 12 G 1/4 JIS
RD 21 30 G 3/8
RD 21 JIS 30 G 3/8 JIS
RD 31 60 G 1/2
RD 41 80 G 3/4
RD 51
restrictor check valve
F d G free ow
F c G throttled
Type RD 112 - precision throttle
see Chapter 3, "Parameters"
"Characteristic curves"
130
500
G 1
RDF 11/.. 12 G 1/4
RDF 21/.. 30 G 3/8
RDF 31/.. 60 G 1/2
RDF 41/.. 80 G 3/4
RDF 51/..
Throttle check valve with xed
throttle
F d G free ow
F c G throttled
130
500
G 1
Note
Thread in accordance with DIN EN ISO 228-1, SAE J 514 (-UNF) or JIS B 2351-1.
Table 2 Fixed throttle for type RDF
# (mm)
0.4 0.5 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RDF 11/...
o o o o o o o o o
RDF 21/...
o o o o o o o o o
# (mm)
0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
RDF 31/...
o o o o o o o o o o o o
RDF 41/...
o o o o o o o o o o o o o o
RDF 51/...
o o o o o o o o o o o o o o
Table 3 Adjustment for type ED and RD
Coding Description
No designation Manual (wing bolt/lock nut)
K With tool (adjusting spindle/lock nut)
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© HAWE Hydraulik SE
3
Parameters
3.1 General
Designation Throttle valves, throttle check valves
Design Slotted throttle, annular gap throttle, orice nozzles
Model Housing version
Material Steel; hardened, ground functional inner parts
Electrogalvanised surface
Installation position As desired
Volumetric ow direction Type RD, RDF:
free volumetric ow F d G
throttled G d F
Type ED:
throttled G d F, F d G
Hydraulic uid Hydraulic oil: according to DIN 51524-1 Part 1 to 3;
according to DIN ISO 3448
Viscosity limits: min. approx. 4, max. approx. 1500 mm
2
/s
opt. operation approx. 10... 500 mm
2
/s.
Also suitable for biologically degradable hydraulic uids type HEPG (polyalkylene glycol)
and HEES (synthetic ester) at operating temperatures up to approx. +70°C.
Cleanliness level
ISO 4406
21/18/15...19/17/13
Temperatures Ambient: approx. -40 ... +80°C, Fluid: -25 ... +80°C, Note the viscosity range!
Permissible temperature during start: -40°C (observe start-viscosity!), as long as the service
temperature is at least 20K higher for the following operation.
Biologically degradable pressure uids: Observe manufacturer's specifications. By considera-
tion of the compatibility with seal material not over +70°C.
© HAWE Hydraulik SE
D 7540 - ED, RD, RDF - 11-2014-1.3 9/13
Characteristic curves
Oil viscosity approx. 54 mm
2
/s
Type ED 11, RD 11
Q ow rate (lpm); #p ow resistance (bar)
1
One revolution
2
Two revolutions
3
Full opening
Type RD 112
Q ow rate (lpm); Δp ow resistance (bar)
1
1/8 revolution
2
1/4 revolution
3
1 revolution
4
1 1/4 revolutions
5
1 1/2 revolutions
6
1 3/4 revolutions
Type ED 21, RD 21
Q ow rate (lpm); Δp ow resistance (bar)
1
1 revolution
2
2 revolutions
3
Full opening
Type ED 31, RD 31
Q ow rate (lpm); Δp ow resistance (bar)
1
1 revolution
2
2 revolutions
3
Full opening
Type ED and RD
Throttle direction G d F
Type ED 41, RD 41
Q ow rate (lpm); Δp ow resistance (bar)
1
1 revolution
2
2 revolutions
3
Full opening
Type ED 51, RD 51
Q ow rate (lpm); Δp ow resistance (bar)
1
1 revolution
2
2 revolutions
3
Full opening
10/13 D 7540 - ED, RD, RDF - 11-2014-1.3
© HAWE Hydraulik SE
Characteristic curves
Oil viscosity approx. 54 mm
2
/sType RDF
Throttle direction G d F
Type RD and RDF
Free ow F d G
Type RDF
Q ow rate (lpm); Δp ow resistance (bar)
Δp , 3 bar at approx. 0.5 Q
max
Δp , 8 bar at approx. Q
max
For Q
max
see Table 1 in Chapter 2, "Available versions, main data"
Weight
Type
ED 11 = 180 g
ED 21 = 220 g
ED 31 = 350 g
ED 41 = 660 g
ED 51 = 840 g
RD 11, RD 112 = 180 g
RD 11 JIS = 180 g
RD 21 = 220 g
RD 21 JIS = 220 g
RD 31 = 350 g
RD 41 = 660 g
RD 51 = 840 g
RDF 11/.. = 180 g
RDF 21/.. = 220 g
RDF 31/.. = 350 g
RDF 41/.. = 660 g
RDF 51/.. = 840 g
© HAWE Hydraulik SE
D 7540 - ED, RD, RDF - 11-2014-1.3 11/13
4
Dimensions
All dimensions in mm, subject to change.
Type ED.. and RD..
1
Adjustment travel
Type ED..K and RD..K
1
Adjustment travel
Type RD../..
Coding Ports
F and G
(BSPP)
L H H
1
h D B SW SW1 Adjustment
travel s
approx.
Revolution
approx.
ED 11(K), RD 11(K), RDF 11/.. G 1/4 52 2.5 15.5 6 2 32 24 10 2.25 2 1/4
RD 112 G 1/4 52 23.5 15.5 6 2 32 24 10 2.25 2 1/4
RD 11 JIS G 1/4 JIS 52 23.5 15.5 6 2 32 24 10 2.25 2 1/4
ED 21(K), RD 21(K), RDF 21/.. G 3/8 52 24 16.5 6 2 32 27 10 2.5 2 1/2
RD 21 JIS G 3/8 JIS 52 24 16.5 6 2 32 27 10 2.5 2 1/2
ED 31(K), RD 31(K), RDF 31/.. G 1/2 62 32.5 21.5 7.5 3 45 32 13 3 3
ED 41(K), RD 41(K), RDF 41/.. G 3/4 72 41 25.5 7.5 3.5 55.5 41 17 4.5 3
ED 51(K), RD 51(K), RDF 51/.. G 1 82 46.5 26.5 7.5 4 61 46 19 4.5 3
SW = a/f
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5
Installation, operation and maintenance information
5.1 Intended application
This valveis intended exclusively for hydraulic applications (uid engineering). The valve meets high technical safety standards and
regulations for uid.
The user must observe the safety measures and warnings in this documentation.
Essential requirements for the product to function correctly and safely:
– All information in this documentation must be observed. This applies in particular to all safety measures and warnings.
– The product must only be assembled and put into operation by qualied personnel.
– The product must only be operated within the specied technical parameters. The technical parameters are described in detail in this
documentation.
– The operating and maintenance manual of the specic complete system must also always be observed.
If the product can no longer be operated safely:
Remove the product from operation and mark it accordingly. It is then not permitted to continue using or operating the product.
5.2 Assembly information
The product must only be installed in the complete system with standard connection components that comply with market requirements
(screw ttings, hoses, pipes, etc.).
The hydraulic system must be shut down correctly prior to dismounting; this applies in particular to hydraulic systems with hydraulic
accumulators.
Danger
Risk to life caused by sudden movement of the hydraulic drives when dismantled incorrectly!
Risk of serious injury or death.
■
Depressurise the hydraulic system.
■
Perform safety measures in preparation for maintenance.
© HAWE Hydraulik SE
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5.3 Operating instructions
Product configuration and setting the pressure and ow rate
The statements and technical parameters in this documentation must be strictly observed.
The instructions for the complete technical system must also always be followed.
Note
■
Read the documentation carefully before usage.
■
The documentation must be accessible to the operating and maintenance staff at all times.
■
Keep documentation up to date after every addition or update.
Caution
Risk of injury due to unexpected movement processes in the machine due to incorrect ow setting!
Risk of minor injury
■
Be prepared for unexpected, fast movements. On changing the ow settings, consumers will move more slowly or more
quickly.
■
Always monitor the pressure gauge when setting or changing the ow.
Purity and ltering of the hydraulic uid
Fine contamination can significantly impair the function of a hydraulic power pack. Contamination can cause irreparable damage.
Examples of ne contamination include:
– Metal chips
– Rubber particles from hoses and seals
– Dirt due to assembly and maintenance
– Mechanical debris
– Chemical ageing of the hydraulic uid
Note
Fresh hydraulic uid from the drum does not always have the highest degree of purity. Under some circumstances the fresh
hydraulic uid must be ltered before use.
Pay attention to the cleanliness level of the hydraulic uid in order to maintain faultless operation.
(Also see cleanliness level in Chapter 3, "Parameters".)
5.4 Maintenance information
This product is largely maintenance-free.
Conduct a visual inspection at regular intervals, but at least once per year, to check if the hydraulic connections are damaged. If
external leakages are found, shut down and repair the system.
Clean the device surface of dust deposits and dirt at regular intervals, but at least once per year.
11-2014-1.3 - D 7540 - ED, RD, RDF
HAWE Hydraulik SE
Streitfeldstraße 25 | 81673 München | Postfach 80 08 04 | 81608 München | Germany
Tel +49 89 379100-1000 | Fax +49 89 379100-91000 | info@hawe.de | www.hawe.com
Further information
Additional versions
■
Restrictor check valve type BC - Screw-in valve: D 6969 B
■
Restrictor check valve type BE - Screw-in valve: D 7555 B
■
Throttle valve and throttle check valve type Q, QR and QV: D 7730
■
Throttle valve and throttle check valve type FG: D 7275
■
Throttle valve and throttle check valve type CQ, CQR and CQV: D 7713