Flow Control Valves
Overview
One-way flow control valves for exhaust air flow control
With male thread M5 … G½, 10-32 UNF … ½NPT
and push-in connector  4 … 12 mm and  … ½”
With male and female thread Gx … G½, yNPT … ½NPT
Polymer and metal designs
Many more variants and dimensions available via
www.festo.com/catalog/grla
Detailed product information è www.festo.com/catalog/grla
Product Range Overview – Inch Series
Type
Adjustment
Material
Connection
Thread
For tubing O.D. [in]2)
10-32 UNF, xNPT, ¼NPT, yNPT, ½NPT
x, Â, ¼, Ä, Å, ½
–
Â, Ã, ¼, Ä, Å, ½
xNPT, ¼NPT, yNPT, ½NPT
–
Connection
Thread
For tubing O.D. [mm]2)
Metal
Polymer
Metal
M5, Gx
Gx, G¼, Gy
G½
4, 6
6, 8
12
Metal
Metal
Gx, G¼
Gx, G¼, Gy, G½
–
–
Flow control valve with QB Quick Basic push-in connector1)
GRLA-…-QB-…-U
via knurled head screw
Polymer
Flow control valve with 2 QB Quick Basic push-in connectors1)
GR-…-QB-…-U
via knurled head screw
Polymer
Flow control valve with female thread connection
GRLA-…-NPT-B
via slotted head screw
Metal
Product Range Overview – Metric Series
Type
Adjustment
Material
GRLA-…-QS-…-RS-D via knurled screw
GRLA-…-QS-…-RS-B via knurled screw
GRLA-…-QS-…-D
via slotted head screw
Flow control valve with female thread connection
GRLA-…-RS-B
via knurled screw
GRLA-…-B
via slotted head screw
1)
2)
Fittings / Flow Controls / Silencers / Tubing
Flow control valve with QS push-in connector1)
Rotatable 360° around the screw-in axis after installation.
Different threaded connections are assigned more than one QS push-in connector size.
6
2014/06 – Subject to change – FAST Program Catalog
è Internet: www.festo.com/catalog/...
253
Flow Control Valves – Inch Series
Ordering Data
Ordering Data – Flow Control Valves with QB Quick Basic Push-in Connector
Thread QS push-in Part No. Type
PU1)
connector
[in]
GRLA-10-32-UNF-QB-Á-U
GRLA-10-32-UNF-QB-Â-U
GRLA-10-32-UNF-QB-¼-U
GRLA-Á-QB-Â-U
GRLA-Á-QB-¼-U
GRLA-Á-QB-Ä-U
GRLA-¼-QB-Â-U
GRLA-¼-QB-¼-U
GRLA-¼-QB-Ä-U
GRLA-¼-QB-Å-U
GRLA-Å-QB-¼-U
GRLA-Å-QB-Ä-U
GRLA-Å-QB-Å-U
GRLA-Å-QB-½-U
GRLA-½-QB-Ä-U
GRLA-½-QB-Å-U
GRLA-½-QB-½-U
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Exhaust air flow control via knurled screw
Â
534680
¼
534682
Ä
534683
Å
534684
½
534685
GR-QB-Â-U
GR-QB-¼-U
GR-QB-Ä-U
GR-QB-Å-U
GR-QB-½-U
Ordering Data – Flow Control Valves with Female Thread
Screw-in Con­
Part No. Type
thread
necting
thread
Exhaust air flow control via slotted head screw
ÁNPT
ÁNPT
151539 GRLA-Á-NPT-B
1
1
1
1
1
PU1)
1
¼NPT
¼NPT
151547
GRLA-¼-NPT-B
1
yNPT
yNPT
151555
GRLA-Å-NPT-B
1
½NPT
½NPT
151559
GRLA-½-NPT-B
1
Fittings / Flow Controls / Silencers / Tubing
Exhaust air flow control via knurled screw
10-32 Á
564839
UNF
Â
564840
¼
564842
xNPT Â
534656
¼
534658
Ä
534659
¼NPT Â
564843
¼
534661
Ä
534662
Å
534663
yNPT ¼
534664
Ä
534665
Å
534666
½
534667
½NPT Ä
564845
Å
564846
½
564847
Ordering Data – Flow Control Valves with QB Quick Basic Push-in Connector
QS push-in
Part No. Type
PU1)
connector [in]
6
1)
Packaging unit per part (minimum ordering quantity).
Lead Time LT for all products on this page: 1D typically ships same day/next day
254
è Internet: www.festo.com/catalog/...
FAST Program Catalog – Subject to change – 2014/06
Flow Control Valves – Metric Series
Ordering Data
Ordering Data – Flow Control Valves with QS Push-in Connector
Thread QS push-in Part No. Type
connector
[mm]
1
1
1
1
1
1
1
1
1
1
Ordering Data – Flow Control Valves with Female Thread
Screw-in Connect­
Part No. Type
thread ing thread
Exhaust air flow control via slotted head screw
Gx
Gx
151165
G¼
G¼
151172
Gy
Gy
151178
G½
G½
151179
Exhaust air flow control via knurled screw
Gx
Gx
151169
G¼
G¼
151175
PU1)
GRLA-Á-B
GRLA-¼-B
GRLA-Å-B
GRLA-½-B
1
1
1
1
GRLA-Á-RS-B
1
GRLA-¼-RS-B
1
1
Fittings / Flow Controls / Silencers / Tubing
Exhaust air flow control via knurled screw, low flow
M5
4
197577 GRLA-M5-QS-4-RS-D
6
197578 GRLA-M5-QS-6-RS-D
Gx
4
197580 GRLA-x-QS-4-RS-D
6
197581 GRLA-x-QS-6-RS-D
Exhaust air flow control via knurled screw
Gx
6
162965 GRLA-x-QS-6-RS-B
8
162966 GRLA-x-QS-8-RS-B
G¼
6
162967 GRLA-¼-QS-6-RS-B
8
162968 GRLA-¼-QS-8-RS-B
Gy
6
162969 GRLA-y-QS-6-RS-B
8
162970 GRLA-y-QS-8-RS-B
Exhaust air flow control via slotted head screw, low flow
G½
12
193152 GRLA-½-QS-12-D
PU1)
1)
6
Packaging unit per part (minimum ordering quantity).
Lead Time LT for all products on this page: 1D typically ships same day/next day
2014/06 – Subject to change – FAST Program Catalog
è Internet: www.festo.com/catalog/...
255