Throttle valve and throttle check valve
type Q, QR and QV
Product documentation
D 7730
03-2017-1.0
Screw-in valve
Operating pressure p
max: 400 bar
Flow rate Q
max: 120 lpm
2/23 D 7730 - Q, QR, QV - 03-2017-1.0.1
© HAWE Hydraulik SE
© by HAWE Hydraulik SE.
The reproduction and distribution of this document as well as the use and communication of its contents to others without explicit
authorisation is prohibited.
Offenders will be held liable for the payment of damages.
All rights reserved in the event of patent or utility model applications.
Brand names, product names and trademarks are not specifically indicated. In particular with regard to registered and protected names
and trademarks, usage is subject to legal provisions.
HAWE Hydraulik respects these legal provisions in all cases.
Printing date / document generated on: 03.01.2018
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 3/23
Contents
1 Overview of throttle valve and throttle check valve type Q, QR and QV.................................................................. 4
2 Available versions, main data............................................................................................................................. 5
2.1 Throttle screw......................................................................................................................................................5
2.2 Throttle valve for pipe installation (angle valve)..................................................................................................... 6
2.3 Banjo bolt version............................................................................................................................................... 7
2.3.1 Banjo bolt.......................................................................................................................................................... 7
2.3.2 Swivel tting.......................................................................................................................................................8
3 Parameters......................................................................................................................................................... 9
4 Dimensions...................................................................................................................................................... 13
4.1 Throttle screw....................................................................................................................................................13
4.2 Throttle valve for pipe installation (angle valve)....................................................................................................15
4.3 Banjo bolt version..............................................................................................................................................16
4.3.1 Banjo bolt.........................................................................................................................................................16
4.3.2 Swivel tting..................................................................................................................................................... 18
5 Assembly, operation and maintenance recommendations.....................................................................................19
5.1 Intended use..................................................................................................................................................... 19
5.2 Assembly information......................................................................................................................................... 19
5.2.1 Maximum adjustment travel................................................................................................................................. 20
5.2.2 Creating the mounting hole.................................................................................................................................20
5.3 Operating instructions.........................................................................................................................................21
5.4 Maintenance information..................................................................................................................................... 21
6 Other information.............................................................................................................................................22
6.1 Accessories, spare parts and separate components..................................................................................................22
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© HAWE Hydraulik SE
1
Overview of throttle valve and throttle check valve type Q, QR and QV
Throttle valves are a type of ow valve. They affect the ow rate for single and
double-acting consumers.
The throttle valve type Q and the restrictor check valve type QR and QV are, as
slotted throttles, insensitive to micro contamination. The restrictor check valve
type QR and QV 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.
The valve type Q, QR and QV can be integrated into control blocks or into the
pipework as a banjo screw version.
Features and benets:
■
Different installation options
■
Simple design
Intended applications:
■
General hydraulic systems
Throttle valve and throttle check valve type Q, QR and QV
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 5/23
2
Available versions, main data
2.1 Throttle screw
Circuit symbol: Q QR QV
Order coding examples:
Q 20
QR 30
QV 60
Basic type and size Table 1 Basic type and size
Table 1 Basic type and size
Throttle screw Flow rate
Q
max
(lpm)
Single throttle, throttling A d B and B d A, largely the same
Q 20 12
Q 30 25
Q 40 50
Q 50 90
Q 60 120
Restrictor check valve, throttling B d A
QR 20 12
QR 30 25
QR 40 50
QR 50 90
QR 60 120
Restrictor check valve, throttling A d B
QV 20 8
QV 30 12
QV 40 20
QV 50 30
QV 60 50
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© HAWE Hydraulik SE
2.2 Throttle valve for pipe installation (angle valve)
Circuit symbol: Q .. T QR .. T QV .. T
Order coding examples:
Q 20 T6
Basic type and size Table 2 Basic type and size
Table 2 Basic type and size
Throttle screw for in-line installation
Angle valve
Pipe#
(mm)
Flow rate
Q
max
(lpm)
Single throttle, throttling A d B and B d A largely the same
Q 20 T6
6
12
Q 30 T8 8 25
Q 40 T10 10 50
Q 50 T12 12 90
Restrictor check valve, throttling B d A
QR 20 T6 6 12
QR 30 T8 8 25
QR 40 T10 10 50
QR 50 T12 12 90
Restrictor check valve, throttling A d B
QV 20 T6 6 8
QV 30 T8 8 12
QV 40 T10 10 20
QV 50 T12 12 30
© HAWE Hydraulik SE
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2.3 Banjo bolt version
2.3.1 Banjo bolt
Circuit symbol: Q .. H QR .. H QV .. H
Order coding examples:
Q 20 H
Basic type and size Table 3 Basic type and size
Table 3 Basic type and size
Banjo bolt Flow rate
Q
max
(lpm)
Single throttle, throttling A d B and B d A largely the same
Q 20 H 12
Q 30 H 25
Q 40 H 50
Q 50 H 90
Q 60 H 120
Restrictor check valve, throttling B d A
QR 20 H 12
QR 30 H 25
QR 40 H 50
QR 50 H 90
QR 60 H 120
Restrictor check valve, throttling A d B
QV 20 H 8
QV 30 H 12
QV 40 H 20
QV 50 H 30
QV 60 H 50
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© HAWE Hydraulik SE
2.3.2 Swivel tting
Circuit symbol: Q .. H.. QR .. H.. QV .. H..
Order coding examples:
Q 20 H
Q 40 H
6
12K
Swivel tting
Basic type and size Table 3 Basic type and size
Table 3 Basic type and size
Swivel tting Flow rate
Q
max
(lpm)
Basic type and size
With sealing edge ring With plastic ring
Pipe#
(mm)
Q, QR QV
6
6K 6
8
L8
8K
L8K
8
Q 20 H
QR 20 H
QV 20 H
L10
L10K 10
12 8
Q 30 H
QR 30 H
QV 30 H
10 10K 10 25 12
Q 40 H
QR 40 H
QV 40 H
12 12K 12 50 20
Q 50 H
QR 50 H
QV 50 H
16 16K 16 90 30
Q 60 H
QR 60 H
QV 60 H
20 20K 20 120 50
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 9/23
3
Parameters
General information
Designation Throttle valve, throttle check valve
Design Slotted throttle
Model Screw-in valve, banjo bolt valve, valve for pipe installation
Tightening torques See Chapter 4, "Dimensions"
Installation position As desired
Line connection Screw directly into mounting hole of manifold body or pipe connection
Surface treatment Housing versions
■
Electrogalvanised
■
Yellow chromated (cC)
Cleanliness level
ISO 4406
21/18/15...19/17/13
Hydraulic uid Hydraulic oil: according to Part 1 to 3;
ISO VG 10 to 68 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.
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.
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© HAWE Hydraulik SE
Weight
Throttle screw Type
Q 20, QR 20, QV 20
Q 30, QR 30, QV 30
Q 40, QR 40, QV 40
Q 50, QR 50, QV 50
Q 60, QR 60, QV 60
= 15 g
= 25 g
= 40 g
= 55 g
= 100 g
Angle valve Type
Q 20 T6, QR 20 T6, QV 20 T6
Q 30 T8, QR 30 T8, QV 30 T8
Q 40 T10, QR 40 T10, QV 40 T10
Q 50 T12, QR 50 T12, QV 50 T12
= 115 g
= 135 g
= 180 g
= 255 g
Banjo bolt Type
Q 20 H, QR 20 H, QV 20 H
Q 30 H, QR 30 H, QV 30 H
Q 40 H, QR 40 H, QV 40 H
Q 50 H, QR 50 H, QV 50 H
Q 60 H, QR 60 H, QV 60 H
= 40 g
= 70 g
= 90 g
= 130 g
= 230 g
Swivel tting Type
Q 20 H., QR 20 H., QV 20 H.
Q 30 H., QR 30 H., QV 30 H.
Q 40 H., QR 40 H., QV 40 H.
Q 50 H., QR 50 H., QV 50 H.
Q 60 H., QR 60 H., QV 60 H.
= 150 g
= 250 g
= 290 g
= 470 g
= 830 g
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 11/23
Characteristics
Oil viscosity approx. 60 mm
2
/s
Δp-Q characteristics
(Flow resistance due to the check valve) in direction
A d B for type QR..
B d A for type QV..
Q ow rate (lpm); Sp ow resistance (bar)
The ow resistance depends on the throttle opening and lies between a limit curve with the
throttle closed up to the fully opened throttle according to the above characteristics.
Characteristics indicate the tendency of a throttle opening with 3 revolutions.
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© HAWE Hydraulik SE
Throttle characteristic Sp-Q The characteristics must only to be understood as reference values for the Sp - Q ratio within
the respective adjustment area.
The revolutions for opening are counted from the closed state.
Q ow rate (lpm); Sp ow resistance (bar)
1 1 revolution
2 2 revolutions
3 3 revolutions
4 4 revolutions
The throttle setting of the valve must always be carried out with a pressure gauge at the
installation site because the ow resistance extends from the theoretical value ) (throttle
closed) to a lower limit value, which is determined by the inherent resistance of the angle
deection A d B.
Note
Max. adjustment travel visible due to ring marking. Observe information in
Chapter 5.2.1, "Maximum adjustment travel". Throttle screws are not suitable for a
zero-leakage closed position.
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 13/23
4
Dimensions
All dimensions in mm, subject to change.
4.1 Throttle screw
1
Throttle screw
2
Seal-lock ® nut
SW1Type G
#D
H a
max
h h
1
K SW
Tightening
torque
(Nm)
Q 20
QR 20
QV 20
M8x1 17 32 8.5 18 17 4 13 8
Q 30
QR 30
QV 30
M10x1 21 36
5
9 24 22 5 17 14
Q 40
QR 40
QV 40
M12x1.5 23 41 10 26 24 6 19 22
Q 50
QR 50
QV 50
M14x1.5 27 46 11 28 28 8 22 50
Q 60
QR 60
QV 60
M16x1.5 30 58
6
18 32 31 10 24 70
SW = a/f
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© HAWE Hydraulik SE
Mounting hole
Type G
#d
1
+0.3
#d
2
#d
3
H11
t
+0.5
t
1
t
2
R
Q 20
QR 20
QV 20
M8x1 10.2 5.5 5 18 14 15 25
Q 30
QR 30
QV 30
M10x1 12.4 6.5 6.5 20.5 17 30
Q 40
QR 40
QV 40
M12x1.5 15.2 7.5 8 23.5
16
19.5 32
Q 50
QR 50
QV 50
M14x1.5 16.8 9 9 27 19 22 37
Q 60
QR 60
QV 60
M16x1.5 19 11 11 32 22 26 41
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 15/23
4.2 Throttle valve for pipe installation (angle valve)
1
Throttle screw
2
Seal-lock ® nut
3
Angle valve
4
Union nut
Type B H
1
#D
1
SW SW1 SW2 SW3
Q 20 T6
QR 20 T6
QV 20 T6
31 56.5 6 4 13 14 17
Q 30 T8
QR 30 T8
QV 30 T8
32 58.5 8 5 17 17 19
Q 40 T10
QR 40 T10
QV 40 T10
34 63.5 10 6 19 19 22
Q 50 T12
QR 50 T12
QV 50 T12
38 72.5 12 8 22 22 24
SW = a/f
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© HAWE Hydraulik SE
4.3 Banjo bolt version
4.3.1 Banjo bolt
1
Throttle screw
2
Seal-lock ® nut
3
Banjo bolt
4
O-ring
SW4Type G
1
(BSPP)
#D
2
H
2
H
4
SW SW1
Tightening torque
max. (Nm)
O-ring
NBR 90 Sh
Q 20 H
QR 20 H
QV 20 H
G 1/4 A 15.45 20 33 4 13 19 50 12.5x1.5
Q 30 H
QR 30 H
QV 30 H
G 3/8 A 18.95 21 38 5 17 24 75 16x1.5
Q 40 H
QR 40 H
QV 40 H
G 3/8 A 18.95 23.5 38 6 19 24 75 16x1.5
Q 50 H
QR 50 H
QV 50 H
G 1/2 A 22.95 27 49.5 8 22 30 130 20x1.5
Q 60 H
QR 60 H
QV 60 H
G 3/4 A 28.95 34 59.5 10 24 36 250 25x1.5
SW = a/f
© HAWE Hydraulik SE
D 7730 - Q, QR, QV - 03-2017-1.0.1 17/23
Mounting hole
1
Reaming depth
Type G
2
(BSPP)
#D
3
H9
#D
4
#d
4
L L
1
t
3
t
4
Q 20 H
QR 20 H
QV 20 H
G 1/4 15.5 20 5 23 10 10 7
Q 30 H
QR 30 H
QV 30 H
G 3/8 19 25 8 27 12 13 9
Q 40 H
QR 40 H
QV 40 H
G 3/8 19 25 12 27 12 13 9
Q 50 H
QR 50 H
QV 50 H
G 1/2 23 30 12 35 15 14 9
Q 60 H
QR 60 H
QV 60 H
G 3/4 29 35 15 43 18 20 10
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© HAWE Hydraulik SE
4.3.2 Swivel tting
1 Throttle screw
2
Seal-lock ® nut
3 Banjo bolt
4 Swivel tting
5 Union nut
Type G
1
(BSPP) G
2
(BSPP) B
1
#D
1
#D
4
#D
5
H
4
l
2
l
3
Q. 20 H 6 (K)
6
Q. 20 H 8 (K)
31
Q. 20 H L8 (K)
29
8
Q. 20 H L10 (K)
G 1/4 A G 1/4
30
18.9 20 42.5 14
Q. 30 H 10 (K)
10
50
Q. 40 H 12 (K)
G 3/8 A G 3/8 35
12
22 25
52
16.5
9
Q. 50 H 16 (K)
G 1/2 A G 1/2 40 16 26.9 30 62.5 21.5 14
Q. 60 H 20 (K)
G 3/4 A G 3/4 48 20 32.9 35 78 24 16
SW4Type SW SW1 SW5 SW6
Tightening torque
approx. (Nm)
Q. 20 H 6 (K)
17
Q. 20 H 8 (K)
19
Q. 20 H L8 (K)
17
Q. 20 H L10 (K)
4 13
19
22 19 50
Q. 30 H 10 (K)
5 17 22
Q. 40 H 12 (K)
6 19 24
27 24 75
Q. 50 H 16 (K)
7 22 30 32 30 130
Q. 60 H 20 (K)
10 24 36 41 36 250
SW = a/f
© HAWE Hydraulik SE
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5
Assembly, operation and maintenance recommendations
5.1 Intended use
This valve is exclusively intended for hydraulic applications (uid engineering).
The valve demands high technical safety standards and regulations for uid engineering.
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:
1. Remove the product from operation and mark it accordingly
✓
It is then not permissible to continue using or operating the product
5.2 Assembly information
The product must only be installed in the complete system with standard and compliant connection components (screw ttings, hoses,
pipes, etc.).
The hydraulic power pack must be shut down correctly prior to dismounting; this applies in particular to power packs 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.
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© HAWE Hydraulik SE
5.2.1 Maximum adjustment travel
1
Red ring
For the largest adjustment travel (general gure a), the ring marking becomes visible.
Unscrewing further does not change (decrease) the ow cross section that is influencing
the Sp value any more.
An internal stopper to prevent further or complete unscrewing is not structurally possible.
The red ring marking thus represents the end of the permissible adjustment travel. If this
is exceeded, the number of load-bearing thread turns is reduced and if it is unscrewed
too far there is a risk that the throttle screw may be ripped out under high pressure.
If necessary, this point must be listed in the operating manual or in the operating and
maintenance manual of the system.
Type a
Q 20, QR 20, QV 20 5
Q 30, QR 30, QV 30 5
Q 40, QR 40, QV 40 6
Q 50, QR 50, QV 50 6
Q 60, QR 60, QV 60 6
Danger
Sudden movement of the hydraulic drives.
Risk of serious injury or death.
•
Do not unscrew the throttle screw via the red marking ring.
•
Attach safety parts to the manifold body ( 1 ).
1 Adjust release of the seal-lock nut slightly
2 Adjust using hex wrench
3 Tighten seal-lock nut
5.2.2 Creating the mounting hole
See description in Chapter 4, "Dimensions".
© 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 the hydraulic component. 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.
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© HAWE Hydraulik SE
6
Other information
6.1 Accessories, spare parts and separate components
Banjo bolt
Pipe#
#d
a
Slewing housing Sealing edge ring Plastic ring Cutting and wedge
ring
Union nut
6 XWH 6-SR-A3C DPR 6-L/S M 6-S-A3C
Q 20 H
QR 20 H
QV 20 H
8 XWH 8-SM/SR-A3C
DKA 1/4 KD 1/4
DPR 8-L/S M 8-S-A3C
8 XWH 8-LR-A3C DPR 8-L/S M 8-S-A3C
Q 20 HL
QR 20 HL
QV 20 HL
10 XWH 10-LR-A3C
DKA 1/4 KD 1/4
DPR 10-L/S M 10-S-A3C
Q 30 H
QR 30 H
QV 30 H
10 XWH 10-SM/SR-A3K DKA 3/8 KD 3/8 DPR 10-L/S M 10-S-A3C
Q 40 H
QR 40 H
QV 40 H
12 XWH 12-SR-A3C DKA 3/8 KD 3/8 DPR 12-L/S M 12-S-A3C
Q 50 H
QR 50 H
QV 50 H
16 XWH 16-SR-A3C DKA 1/2x4.5 KD 1/2 DPR 16-L/S M 16-S-A3C
Q 60 H
QR 60 H
QV 60 H
20 XWH 20-SM/SR-A3C DKA 3/4 KD 3/4 DPR 20-L/S M 20-S-A3C
Swivel ttings
Q ...H...
QR ...H...
QV ...H...
1
Sealing through sealing edge ring DKA
2
Sealing through sealing edge and O-ring
Q ...H...K
QR ...H...K
QV ...H...K
1
Sealing through sealing edge ring KDS
2
Sealing through sealing edge and O-ring
D 7730 - Q, QR, QV - 03-2017-1.0.1
HAWE Hydraulik SE
Einsteinring 17 | 85609 Aschheim/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
■
Throttle valve and throttle check valve type FG: D 7275
■
Throttle valve and throttle check valve type CQ, CQR and CQV: D 7713
■
Restrictor check valve type BC: D 6969 B
■
Restrictor check valve type BE: D 7555 B
■
Throttle valve and throttle check valve type ED, RD and RDF: D 7540