Check valve type RC
Product documentation
D 6969 R
11-2014-1.1
Screw-in valve
Operating pressure p
max: 700 bar
Flow rate Q
max: 60 lpm
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© 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.
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Contents
1 Overview of check valves type RC......................................................................................................................4
2 Available versions, main data............................................................................................................................5
3 Parameters....................................................................................................................................................... 7
3.1 General............................................................................................................................................................. 7
4 Dimensions...................................................................................................................................................... 9
4.1 Creating the mounting hole...............................................................................................................................10
5 Installation, operation and maintenance information........................................................................................11
5.1 Designated use................................................................................................................................................ 11
5.2 Assembly information........................................................................................................................................11
5.2.1 Creating the mounting hole...............................................................................................................................11
5.3 Operating instructions.......................................................................................................................................12
5.4 Maintenance information................................................................................................................................... 12
6 Other information...........................................................................................................................................12
6.1 Planning information........................................................................................................................................ 12
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1
Overview of check valves type RC
Check valves are a type of non-return valve. They block the oil flow in one
direction and open in the opposite direction. In the closed state they have zero
leakage.
The check valve type RC can be screwed in. The spring-loaded plate valve type RC
can be screwed-in in any direction and is particularly suitable for fast switching
sequences.
Features and benefits:
■
Operating pressures up to 700 bar
■
Easily machined mounting holes
■
Sturdy
Intended applications:
■
General hydraulic systems
■
Hydraulic pre-loading
Figure 1: Screw-in cartridge
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2
Available versions, main data
Circuit symbol: Section view:
Order coding example:
RC 1
RC 2 -E
Version
Table 2 Version
Basic type and size
Table 1 Basic type and size
Table 1 Basic type and size
Basic type and size Volumetric flow
Q
P
(lpm)
Pressure
p
max
(bar)
Thread Opening pressure
(bar)
RC 1
RC 1/1
20 700 G 1/4 (A) (BSPP)
G 1/4 (A) (BSPP)
0.05 ... 0.07
1.5
RC 2
RC 2/1
35 700 G 3/8 (A) (BSPP)
G 3/8 (A) (BSPP)
0.05 ... 0.07
1.5
RC 3
60 500 G 1/2 (A) (BSPP) 0.05 ... 0.07
RC 14
20 700 M 14x1.5 0.05 ... 0.07
RC 26
35 700 M 16x1.5 0.05 ... 0.07
RC 28
35 700 M 18x1.5 0.05 ... 0.07
RC 30
60 500 M 20x1.5 0.05 ... 0.07
RC 32
60 500 M 22x1.5 0.05 ... 0.07
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Table 2 Versions
Model Description View Circuit symbol
No designation
Screw-in cartridge
G
Pipe connection on both sides
E
F
Tapped journal on one side
Note
Thread in accordance with ISO 228/1 (-UNF) or JIS B 2351(0).
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3
Parameters
3.1 General
Designation
Check valves
Design
Shim check valve
Model
Screw-in valve, housing version
Material
Steel; hardened, ground functional inner parts
Installation position
As desired; for housing version type RC .. G(E, F) specified
Flow direction
F → B
free flow
B → F
locked
Hydraulic fluid
Hydraulic oil conforming DIN 51 524 part 1 to 3; ISO VG 10 to 68 conforming DIN 51 519
Viscosity limits: min. approx. 4, max. approx. 1500 mm
2
/s
opt. operation approx. 10... 500 mm
2
/s.
Also suitable are biologically degradable pressure fluids types HEPG (Poly-alkylenglycol) and
HEES (Synth. Ester) at service 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 fluids: Observe manufacturer's specifications. By considera-
tion of the compatibility with seal material not over +70°C.
Characteristic curves
Viscosity during measurements
approx. 62 mm
2
/s
Note
At viscosities above approx. 500 mm
2
/s the Δp values deviate increasingly upwards.
Figure 2: Q volumetric flow (lpm); Δp flow resistance (bar)
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Weight
Screw-in cartridge
Type RC 1, RC 1/1, RC 14 = approx. 6 g
Type RC 2, RC 2/1, RC 26, RC 28 = approx. 15 g
Type RC 3, RC 30, RC 32 = approx. 25 g
Housing version
Type RC 1 .. - G = approx. 75 g
Type RC 2 .. - G = approx. 105 g
Type RC 3 .. - G = approx. 170 g
Type RC 1 .. - E, RC 1 .. - F = approx. 60 g
Type RC 2 .. - E, RC 2 .. - F = approx. 85 g
Type RC 3 .. - E, RC 3 .. - F = approx. 145 g
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4
Dimensions
All dimensions in mm, subject to change.
Screw-in cartridge
Large width across
flats for assembly
(connection B)
Small width across
flats for assembly
(connection F)
1
sealing ring
Note
Do not insert key with force during assembly to ensure the inner parts of
the valve are not damaged.
Type G
1
L l l
1
#d
SW
1
SW
2
Sealing ring
NBR 90 Sh
Max. tightening torque M
A
(Nm)
RC 1, RC 1/1 G 1/4 A
(BSPP)
13 3.5 6 11.6 8 4 9x1 9
RC 14 M 14x1.5 13 3.5 6 12.2 8 4 9x1 9
RC 2, RC 2/1 G 3/8 A
(BSPP)
15 4.3 7.2 14.8 9 5 10x1.5 15
RC 26 M 16x1.5 15 4.3 7.2 14.2 9 5 10x1.5 15
RC 28 M 18x1.5 15 4.3 7.2 16 9 5 10x1.5 15
RC 3 G 1/2 A
(BSPP)
18 5 8 18.5 12 8 14x1.5 40
RC 30 M 20x1.5 18 5.5 7 18.2 12 8 14x1.5 40
RC 32 M 22x1.5 18 5 8 20 12 8 14x1.5 40
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Housing version
Type RC ... G Type RC ... E and F
1
Thread seal
For RC 1... with fitting seal G 1/4 (BSPP) NBR, all others with
cutting edge.
Type G G
1
#D #D
2
L L
1
l SW Tightening torque (Nm)
RC 1, RC 1/1 G 1/4 (BSPP) G 1/4 A
(BSPP)
19 -- 46 43 12 19 40
RC 14 M 14x1.5 M 14x1.5 19 16 46 42 12 19 40
RC 2, RC 2/1 G 3/8 (BSPP) G 3/8 A
(BSPP)
22 20.5 50 44 12 22 80
RC 26 M 16x1.5 M 16x1.5 22 20 50 44 12 22 80
RC 28 M 18x1.5 M 18x1.5 24 22 50 44 12 24 80
RC 3 G 1/2 (BSPP) G 1/2 A
(BSPP)
26 24 56 52 14 27 150
RC 30 M 20x1.5 M 20x1.5 25 24 56 52 14 27 150
RC 32 M 22x1.5 M 22x1.5 27 26 56 52 14 30 150
4.1 Creating the mounting hole
Type G
#D #D
1
t t
1
x
RC 1, RC 1/1 G 1/4 (BSPP) 11.8 8 25.5 22.5 3
RC 14 M 14x1.5 12.5 8 25.5 22.5 3
RC 2, RC 2/1 G 3/8 (BSPP) 15.25 9 27 24 3
RC 26 M 16x1.5 14.5 9 27 24 3
RC 28 M 18x1.5 16.5 9 27 24 3
RC 3 G 1/2 (BSPP) 19 12 32.5 28.5 3.5
RC 30 M 20x1.5 18.5 12 32.5 28.5 3.5
RC 32 M 22x1.5 20.5 12 32.5 28.5 3.5
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5
Installation, operation and maintenance information
5.1 Designated use
This fluid-power product has been designed, manufactured and tested acc. to standards and regulations generally applicable in the
European Union and left the plant in a safe and fault-free condition.
To maintain this condition and ensure safe operation, operators must observe the information and warnings in this documentation.
This fluid-power product must be installed and integrated in a hydraulic system by a qualified staff who is familiar with and observes
the general engineering principles and relevant applicable regulations and standards.
In addition, application-specific features of the system or installation location must be taken into account if relevant.
This product may only be used within oil-hydraulic systems.
The product must be operated within the specified data. This documentation contains the technical parameters for various product
versions.
Note
Non-compliance will void any warranty claims made against HAWE Hydraulik SE.
5.2 Assembly information
The hydraulic accumulator must be integrated in the system via state of the art connection components (screw fittings, hoses, pipes,
etc.). The hydraulic system must be shut down as a precautionary measure prior to dismounting; this applies in particular to systems
with hydraulic accumulators.
5.2.1 Creating the mounting hole
See description in Chapter 4, "Dimensions".
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5.3 Operating instructions
Product, pressure and/or flow settings
All statements in this documentation must be observed for all product, pressure and/or flow settings on or in the hydraulic system.
Filtering and purity of the hydraulic fluid
Soiling in the fine range, e.g. abraded material and dust, or in the macro range, e.g. chips, rubber particles from hoses and seals, can
cause significant malfunctions in a hydraulic system. It is also to be noted that new hydraulic fluid “from the drum” does not necessari-
ly meet the highest purity requirements.
Pay attention to the purity of the hydraulic fluid 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 to check the hydraulic connections for damage at regular intervals, but at least once per year. If external
leaks are found, shut down and remedy.
Check the device surfaces for dust deposits at regular intervals (but at least annually) and clean the device if required.
6
Other information
6.1 Planning information
If using with classes of consumers in which pressure and oil flow surges (decompression) may occur in direction F d B due to
the storage effect combined with fast-switching directional valves, throttling points (e.g. in line with small inflow bores) must be
implemented and designed in such a way that a volumetric flow no greater than that permitted is reached during the pressure difference
at the start of decompression.
11-2014-1.1 - D 6969 R - RC
HAWE Hydraulik SE
Streitfeldstraße 25 | 81673 München | Postfach 80 08 04 | 81608 München | Germany
Tel +49 89 379100-1000 | Fax +49 89 379100-9100 | info@hawe.de | www.hawe.com
Further information
Additional versions
■
Restrictor check valve type BC - Screw-in valve: D 6969 B
■
Check valve type RK and RB: D 7445
■
Check valve type RE: D 7555 R
■
Check valve type CRK, CRB and CRH: D 7712
