qst-1/4-8-50

Product ID:1075
Updated: 2026/7/4
Festo qst-1/4-8-50

Key Features

  • 1Ensure precise connections with a standard 6.7 mm nominal size.
  • 2Install and remove tool-free using the push-pull principle.
  • 3Operate with compressed air per ISO 8573-1:2010 or water.
  • 4Construct from high-quality, RoHS-compliant PBT and POM materials.
  • 5Apply in varied industries with CRC 1 corrosion resistance.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Size
Standard
Nominal width
6.7mm
Type of seal on screwed plug
Coating
Mounting position
Any
Design
T-shape
Pack size
50
Structural design
Push-pull principle
Operating pressure for entire temperature range
-13.775psi 87psi
Temperature-dependent operating pressure
-13.775psi 203psi
Information on operating pressure
Water: max. 0.6 MPa at max. 50 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:-:-] Water (liquid, ice-free)
Information on operating and pilot media
Operation with oil lubrication possible
Corrosion resistance class (CRC)
1 - Low corrosion stress
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Cleanroom class
Class 4 according to ISO 14644-1
Ambient temperature
-10°C 80°C
Nominal tightening torque
9Nm
Tolerance for nominal tightening torque
± 20%
Product weight
25g
No. of outlets
2
No. of supply lines
1
Type of mounting
External hexagon, AF 14
Pneumatic connection 1
External thread R1/4
Pneumatic connection 2
for pneumatic tubing outside diameter 8 mm
Releasing ring color
Blue
Material of screwed plug
Brass, nickel-plated
Note on materials
RoHS-compliant
Housing material
PBT
Releasing ring material
POM
Material of tubing seal
NBR
Material of tube retaining claw
High-alloy stainless steel
Manufacturer ID
130797

Specifications may be subject to change without notice

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