One-way flow control valves GR/GRA, in-line installation
Subject to change – 2014/03
2
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One-way flow control valves GR/GRA, in-line installation
Product range overview and type codes
Product range overview
Version Valve function Version Type Connection
direction
Pneumatic
connection 1
Pneumatic
connection 2
qnN
1)
Adjustment
component
è Page/
Internet
[l/min]
In-line
installation
Metal
One-way flow
control function
GR/GRA Inline M3, M5, GÁ,
G¼, Gy,
G½, G¾
M3, M5, GÁ,
G¼, Gy,
G½, G¾
29.5 … 3,300 Knurled screw 3
Polymer
One-way flow
control function
GR Inline QS-3, QS-4,
QS-6, QS-8
QS-3, QS-4,
QS-6, QS-8
25 … 225 Knurled screw 8
1) Standard nominal flow rate in direction of flow control.
Type codes
GR – QS-4 – LF –
Type
GR One-way flow control valve, in-line installation
GRA One-way flow control valve, in-line installation
Pneumatic connection 1 and 2
M3 Female thread M3
M5 Female thread M5
x Female thread Gx
¼ Female thread G¼
y Female thread Gy
½ Female thread G½
¾ Female thread G¾
QS-3 Push-in connector for tubing O.D. 3 mm
QS-4 Push-in connector for tubing O.D. 4 mm
QS-6 Push-in connector for tubing O.D. 6 mm
QS-8 Push-in connector for tubing O.D. 8 mm
Flow rate characteristic
LF Low flow
Generation
B B series
2014/03 – Subject to change
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One-way flow control valves GR/GRA, in-line installation
Technical data – Female thread, metal
One-way flow control function
-M- Flow rate
29.5 … 3,300 l/min
-Q- Temperature range
–20 … +75 °C
-L- Operating pressure
0.1 … 15 bar
GR-¼
General technical data
Valve function One-way flow control function
Type GR-M3 GR-M5-B GR-x-B GR-¼ GRA-¼-B GR-y-B GR-½ GR-¾
Pneumatic connection 1, 2 M3 M5 Gx G¼ G¼ Gy G½ G¾
Adjustment component Knurled screw
Type of mounting Via through-hole – Via through-hole
Front panel mounting – Front panel mounting
– In-line
installation
–
Mounting position Any
-H- Note: This product conforms to ISO 1179-1 and to ISO 228-1
Operating and environmental conditions
Type GR-M3 GR-M5-B GR-x-B GR-¼ GRA-¼-B GR-y-B GR-½ GR-¾
Operating pressure [bar] 0.3 … 8 0.5 … 10 0.1 … 10 0.3 … 15
Operating medium Compressed air in accordance with ISO 85731: 2010
[6:4:4] [7:4:4] [7:–:–] [7:4:4] [7:–:–]
Note on operating/pilot medium Operation with lubricated medium possible (in which case lubricated operation will always be required)
Ambient temperature [°C] –10 … +60 –20 … +60 –20 … +75 –10 … +60
Temperature of medium [°C] –10 … +60 –20 … +60 –20 … +75 –10 … +60
Storage temperature [°C] –10 … +40 –20 … +60 –20 … +75 –10 … +60
Standard nominal flow rate qnN at 6 > 5 bar as a function of turns of the adjusting screw n
GR-M3 GR-M5-B, GR-x-B, GRA-¼-B
qnN [l/min]
n
qnN [l/min]
n
Subject to change – 2014/03
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One-way flow control valves GR/GRA, in-line installation
Technical data – Female thread, metal
Standard nominal flow rate qnN at 6 > 5 bar as a function of turns of the adjusting screw n
GR-y-B, GR-½, GR-¾
qnN [l/min]
n
Materials
Sectional view
One-way flow control valve
1 Adjusting screw Brass
GR-¼: Galvanised steel
2 Housing GR-M3, GR-M5-B, GR-x-B, GR-¼,
GR-¾: Wrought aluminium alloy
GRA-¼-B, GR-y-B, GR-½:
Die-cast zinc
– Seals NBR
Note on materials RoHS-compliant
Dimensions Download CAD data è www.festo.com
GR-M3
1
2
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One-way flow control valves GR/GRA, in-line installation
Technical data – Female thread, metal
Dimensions Download CAD data è www.festo.com
GR-M5-B GR-x-B
-H- Note: This product conforms to ISO 1179-1 and to ISO 228-1
1 Cover cap GRK è 7 2 Hex nut GRM è 7
Dimensions Download CAD data è www.festo.com
GR-¼
Type Connection B1 D2 D3 H1 H2 H3 L1 L2 L3 ß 1
D1
GR-¼ G¼ 28 18 16 32.5 26.5 17 52 30 22 24
Dimensions Download CAD data è www.festo.com
GRA-¼-B GR-y-B
-H- Note: This product conforms to ISO 1179-1 and to ISO 228-1
1 Cover cap GRK è 7 2 Hex nut GRM è 7
Type Connection B1 D2 D3 D4 H1 H2 H3 H4 H5 H6 H7
max.
H8 L1 L2 ß
1
ß
2
D1 min. max.
GRA-¼-B G¼ 26.5 M20x1.5 6.4 17.4 56 62 73.5 44 22.5 28 10 3.5 – 52 35 ±0.1 13 24
GR-y-B Gy 33 M20x1.5 4.5 17.5 62.5 74 76.5 46 31.5 27 14 3.5 13 62 38 13 30
Subject to change – 2014/03
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One-way flow control valves GR/GRA, in-line installation
Technical data – Female thread, metal
Dimensions Download CAD data è www.festo.com
GR-½ GR-¾
-H- Note: This product conforms to ISO 1179-1 and to ISO 228-1 -H- Note: This product conforms to ISO 1179-1 and to ISO 228-1
Ordering data – One-way flow control function
Pneumatic
connection
Standard nominal flow rate qnN at 6 > 5 bar Weight Part No. Type
in direction of flow control in non-return direction
2 1 [l/min] [l/min] [g]
Knurled screw
M3 M3 29.5 26 … 27.5 2.5 15899 GR-M3
M5 M5 94 115 21 151213 GR-M5-B
Gx Gx 220 217 34 151215 GR-x-B
G¼ G¼ 420 780 180 6509 GRA-¼-B
Gy Gy 1,010 1,150 225 6308 GR-y-B
G½ G½ 1,620 2,760 517 3720 GR-½
G¾ G¾ 3,300 4,800 938 2103 GR-¾
G¼ G¼ 370 150 80 2101 GR-¼
2014/03 – Subject to change
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One-way flow control valves GR/GRA, in-line installation
Accessories
Hex nut GRM
For front panel mounting
Material: Steel
Ordering data
For type Description Part No. Type
GR-M5-B Thread M10x1 6444 GRM-M5
GR-x-B Thread M12x1 2107 GRM-x
GRA-¼-B, GR-y-B Thread M20x1.5 204596 GRM-y
Cover cap GRK
Material: PP
Ordering data
For type Description Part No. Type
GR-M5-B Thread M10x1 6436 GRK-M5
GR-x-B Thread M12x1 2105 GRK-x
GRA-¼-B, GR-y-B Thread M20x1.5 6309 GRK-y-B
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One-way flow control valves GR, in-line installation
Technical data – Push-in connector QS, polymer
One-way flow control function
-M- Flow rate
25 … 225 l/min
-Q- Temperature range
–10 … +60 °C
-L- Operating pressure
0.2 … 10 bar
General technical data
Valve function One-way flow control function
Pneumatic connection 2 QS-3 QS-4 QS-6 QS-8
Pneumatic connection 1 QS-3 QS-4 QS-6 QS-8
Adjustment component Knurled screw
Type of mounting Via through-hole
Front panel mounting
Via accessories
Mounting position Any
Operating and environmental conditions
Operating pressure [bar] 0.2 … 10
Operating medium Compressed air in accordance with ISO 85731:2010 [7:4:4]
Note on operating/pilot medium Operation with lubricated medium possible (in which case lubricated operation will always be required)
Ambient temperature [°C] –10 … +60
Temperature of medium [°C] –10 … +60
Storage temperature [°C] –10 … +40
2014/03 – Subject to change
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One-way flow control valves GR, in-line installation
Technical data – Push-in connector QS, polymer
Standard nominal flow rate qnN at 6 > 5 bar
as a function of turns of the adjusting screw n
Standard flow rate qn at 6 > 0 bar
as a function of turns of the adjusting screw n
GR-QS-3/GR-QS-4 GR-QS-3/GR-QS-4
qnN [l/min]
n
qn [l/min]
n
GR-QS-6/GR-QS-8 GR-QS-6/GR-QS-8
n
qnN [l/min]
qn [l/min]
n
Materials
Sectional view
One-way flow control valve
1 Adjusting screw Nickel-plated brass
2 Housing PA, reinforced
3 Releasing ring POM
– Seals NBR
Note on materials RoHS-compliant
1
2
3
Subject to change – 2014/03
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One-way flow control valves GR, in-line installation
Technical data – Push-in connector QS, polymer
Dimensions Download CAD data è www.festo.com
Knurled screw
1 Cover cap GRK è 11
2 Hex nut GRM è 11
Type Tubing O.D.
D1
B D2 D3 D4 H1 H2 H3 H4
min. max.
GR-QS-3 3 14 M10x1 4.3 ±0.1 8.0 –0.3 35.9 40 5.55 12.2 15.7
GR-QS-4 4 14 M10x1 4.3 ±0.1 8.0 –0.3 35.9 40 5.55 12.2 15.7
GR-QS-6 6 16 M12x1 4.3 ±0.1 10.1 –0.3 40.4 44.5 8.4 17.3 21.3
GR-QS-8 8 16 M12x1 4.3 ±0.1 10.1 –0.3 40.4 44.5 8.4 17.3 21.3
Type H5 H6 H7 H8 H9 H10 L1 L2 L3 ß 1 ß 2
max.
GR-QS-3 24.9
4.5 3.5
3.2 2.5 50.9 41.8 36 18
8
13
GR-QS-4 24.9
3.2 2.5 50.9 42.4 36 18 13
GR-QS-6 30.1
2.8 3.5 46.1 51.6 43 24 14
GR-QS-8 30.1
2.8 3.5 46.1 53.4 43 24 14
Ordering data – One-way flow control function
Pneumatic
connection
Standard nominal flow rate qnN
at 6 > 5 bar
Standard flow rate qn
at 6 > 0 bar
Weight Part No. Type
in direction of
flow control
in non-return
direction
in direction of
flow control
in non-return
direction
2 1 [l/min] [l/min] [l/min] [l/min] [g]
Knurled screw
QS-3 QS-3 25 65 … 70 100 125 … 135 15 193965 GR-QS-3
QS-4 QS-4 40 100 … 110 130 170 … 185 15 193966 GR-QS-4-LF
85 100 … 110 150 170 … 185 15 193967 GR-QS-4
QS-6 QS-6 75 260 … 270 110 500 … 510 25 193968 GR-QS-6-LF
160 260 … 270 205 500 … 510 25 193969 GR-QS-6
QS-8 QS-8 225 350 … 400 390 610 … 640 26 193970 GR-QS-8
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One-way flow control valves GR, in-line installation
Accessories
Retainer GR-H
For mounting on a flat surface via M3
screws. The one-way flow control valve
is snapped into the retainer. The
retainer can be fitted in any position.
Material: POM
Free of copper and PTFE
Linking of multiple retainers via
dovetail slot
Dimensions and ordering data
For type B B1 D D1 D2 H H1 H2
GR-QS-3, GR-QS-4 14.3 1.9 9 3.2 6 16 12 5.7
GR-QS-6, GR-QS-8 19.8 1.9 14.5 3.2 6 19.2 13 5.7
For type H3 H4 L L1 Weight Part No. Type
[g]
GR-QS-3, GR-QS-4 4.1 3.4 31.8 24 4 195495 GR-H-QS-3-4
GR-QS-6, GR-QS-8 2.3 3.4 31.8 24 5 195496 GR-H-QS-6-8
Hex nut GRM
For front panel mounting
Material: Steel
Ordering data
For type Description Part No. Type
GR-QS-3, GR-QS-4 Thread M10x1 6444 GRM-M5
GR-QS-6, GR-QS-8 Thread M12x1 2107 GRM-x
Cover cap GRK
Material: PP
Ordering data
For type Description Part No. Type
GR-QS-3, GR-QS-4 Thread M10x1 6436 GRK-M5
GR-QS-6, GR-QS-8 Thread M12x1 2105 GRK-x
