Festo QST-8 153130 Push‑in T‑Connector 8mm

Festo QST‑8 is a push‑in T‑connector (tee adaptor) for pneumatic tubing distribution. One supply line (inlet) and two output ports each accept 8 mm outside diameter tubing via quick‑push‑in connection. The push‑pull principle enables tool‑free assembly and disassembly, while the blue release ring provides visual identification of the release mechanism. Made from PBT housing with stainless steel tube retaining claw and NBR seal. Suitable for compressed air and vacuum applications.

Applications:

• Branching compressed air lines from one supply to two outputs

• Pneumatic distribution in manifolds and control panels

• Tubing connections for valves, cylinders, and actuators

• Vacuum systems

Core Specifications:

• Pneumatic connection (ports 1 & 2): Push‑in fitting for tubing OD 8 mm

• Design: T‑shape (tee)

• Nominal size: 6.2 mm

• Tubing insertion depth: 18.1 mm

• Housing material: PBT (polybutylene terephthalate)

• Release ring material: POM (blue) [8†L19-L21]

Advanced Specifications:

• Operating pressure (full temperature range): –0.95 bar … 6 bar

• Temperature‑dependent operating pressure: –0.95 bar … 14 bar

• Water operating limit: max. 0.6 MPa (6 bar) at max. 50 °C

• Operating medium: Compressed air to ISO 8573‑1:2010 [7:-:-]; water (liquid, ice‑free) per manufacturer declaration [7†L17-L18]

• Lubricated operation possible (continued lubrication required if applied)

• Ambient temperature: –10 °C … 80 °C [7†L6]

• Cleanroom suitability: Class 4 to ISO 14644‑1

• Corrosion resistance class (CRC): 1 – Low corrosion stress [7†L19]

• Product weight: 16 g [7†L22]

• Packing unit: 10 pieces

• RoHS compliant [7†L25]

System Integration:

• Compatible with Festo 8 mm OD pneumatic tubing (PUN, PAN, PEN, etc.) [9†L12]

• Mounting position optional; can be inserted anywhere in tubing line

• For detailed assembly instructions, refer to the product hardware manual.

Standards & Compliance:
Refer to manufacturer official documentation for certification and compliance details.

Related Products:

• QST‑10 – T‑connector for 10 mm OD tubing (higher flow) [9†L16-L17]

• QS‑8‑8 (153082) – Straight push‑in fitting, 8 mm to 8 mm (inline connection)

• QSL‑1/4‑8 (153072) – 90° L‑fitting, G1/4 male thread to 8 mm tubing