Support@ 98422 47546
Authorized dealers | FESTO pneumatic spares

Festo Brand Push-in fitting QS-G1/8-4-I


Precision and Reliability for Pneumatic Connections

Elevate your pneumatic systems with the Festo Push-in Fitting QS-G1/8-4-I. Designed for engineers and technicians who demand both performance and ease of use, this fitting is the ideal choice for a wide range of applications. Whether you’re involved in automation, machinery, or any system requiring reliable pneumatic connections, this fitting offers unparalleled convenience and efficiency.

Key Features

  • Male Thread G1/8 Connection: The QS-G1/8-4-I fitting features a sturdy male thread G1/8 on port 1, providing a secure and stable connection. This standard thread ensures compatibility with a variety of pneumatic components, making it versatile for integration into existing systems.
  • 4 mm Tubing Compatibility: Port 2 is specifically designed for tubing with an outside diameter of 4 mm. The push-in mechanism allows for quick and easy connection and disconnection, saving valuable time during installation and maintenance. This feature makes it a go-to choice for applications requiring frequent reconfiguration.
  • Wide Operating Pressure Range: With a temperature-dependent operating pressure range from -0.95 bar to 14 bar, this fitting can handle a broad spectrum of pneumatic requirements. Its ability to maintain performance across varying pressures ensures reliability under different operational conditions.
  • Temperature Resilience: The fitting operates effectively in ambient temperatures ranging from -10 °C to 80 °C. This broad temperature range guarantees that it can withstand both cold and hot environments, making it suitable for diverse industrial settings.

Technical Specifications

  • Nominal Size: 2.6 mm
  • Port 1: Male Thread G1/8
  • Port 2: For tubing with an outside diameter of 4 mm
  • Operating Pressure Range: -0.95 bar to 14 bar
  • Ambient Temperature Range: -10 °C to 80 °C


The Festo Push-in Fitting QS-G1/8-4-I is perfect for use in pneumatic control systems, manufacturing automation, and other industrial processes where reliable and quick connections are crucial. Its design simplifies assembly and reduces downtime, enhancing productivity and efficiency.

Why Choose Festo?

Festo is renowned for its commitment to quality and innovation in pneumatic and automation technology. The QS-G1/8-4-I fitting embodies this legacy, offering robust performance and ease of use. When you choose Festo, you’re investing in a product that stands the test of time, backed by a brand known for excellence and reliability.


The Festo Push-in Fitting QS-G1/8-4-I combines precise engineering with practical design to meet the demanding needs of modern pneumatic systems. Its user-friendly features, coupled with Festo’s reputation for quality, make it an essential component for any professional looking to enhance their pneumatic infrastructure. Make your systems more efficient and reliable with this versatile push-in fitting from Festo.


Technical Data

  • Size: Standard
  • Nominal size: 2.6 mm
  • Type of seal on screwed plugSealing ring
  • Mounting position: optional
  • Design: Straight design
  • Size of pack10
  • Design: Push-pull principle
  • Operating pressure complete temperature range-0.095 MPa … 0.6 MPa
  • Operating pressure complete temperature range-0.95 bar … 6 bar
  • Operating pressure complete temperature range-13.775 psi … 87 psi
  • Temperature-dependent operating pressure-0.095 MPa … 1.4 MPa
  • Temperature-dependent operating pressure-0.95 bar … 14 bar
  • Temperature-dependent operating pressure-13.775 psi … 203 psi
  • Operating mediumCompressed air to ISO 8573-1:2010 [7:-:-] Water as per manufacturer’s declaration at
  • Note on operating and pilot mediumLubricated operation possible
  • Corrosion resistance class CRC1 – Low corrosion stress
  • LABS (PWIS) conformityVDMA24364-B1/B2-L
  • Ambient temperature-10 °C … 80 °C
  • Nominal torque5.4 Nm
  • Tolerance for nominal tightening torque± 20%
  • Product weight7.7 g
  • Type of mountingInternal hexagon, size 2.5 mm
  • Pneumatic connection, port 1Male thread G1/8
  • Pneumatic connection, port 2For tubing outside diameter of 4 mm
  • Colour of release ringBlue
  • Note on materialsRoHS-compliant
  • Material housingBrass, nickel-plated
  • Material release ringPOM
  • Material tubing sealNBR
  • Material tubing clamp componentHigh-alloy stainless steel