hgl-1/4-qs-8

Product ID:9275
Updated: 2026/4/3
Festo hgl-1/4-qs-8

Key Features

  • 1Ensure reliable one-way flow control to prevent system backflow. 2、Control pneumatic actuation precisely via the G1/8 pilot air port. 3、Install easily with the screw-in mounting and male G1/4 thread. 4、Handle diverse conditions with a 0.05 to 10 MPA operating range. 5、Meet stringent cleanroom standards with durable NBR seals and alloy.
Product Details
hgl-1/4-qs-8
Festo

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Valve function
Unlockable non-return function
Pneumatic connection 1
QS-8
Pneumatic connection 2
G?
Pilot air port 21
G1/8
Actuation type
Pneumatic
Type of mounting
Screw-in With external thread
Operating pressure
0.5bar 10bar
Pilot pressure MPa
0.2MPa 1MPa
Pilot pressure
2bar 10bar
Pilot pressure psi
29psi 145psi
Ambient temperature
-10°C 60°C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Maritime classification
See certificate
Mounting position
Any
Symbol
00991456
Standard flow rate 1->2 (6-0)
640l/min
Standard nominal flow rate 1->2 (6-5)
390l/min
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
LABS (PWIS) conformity
VDMA24364-B2-L
Cleanroom class
Class 4 according to ISO 14644-1
Storage temperature
-10°C 60°C
Temperature of medium
-10°C 60°C
Pilot medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Nominal tightening torque
11Nm
Tolerance for nominal tightening torque
± 10%
Product weight
38.7g
Note on materials
RoHS-compliant
Seals material
NBR
Hollow bolt material
Wrought aluminum alloy Anodized
Releasing ring material
POM
Non-return collar material
NBR
Swivel joint material
Die-cast zinc
Manufacturer ID
530041

Specifications may be subject to change without notice