qst-6-4-100

Name: qst-6-4-100
Brand: FESTO
SKU: qst-6-4-100

The Festo QST-6-4-100 push-in T-connector is a standard-sized, T-shaped pneumatic reducing air fitting with a nominal size of 2.3 mm. It operates on a push-pull principle and is suitable for compressed air applications according to ISO 8573-1:2010. This fitting is available in packs of 100 and is designed for lubricated operation, ensuring high performance in various industrial settings.

Product Modelqst-6-4-100

Material Number130820

Product ID1606

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Versatile DesignThe Festo QST-6-4-100 features a T-shaped design, allowing for easy connection and disconnection of pneumatic lines. Its push-pull principle ensures a secure and reliable connection, making it suitable for various mounting positions.
2
Wide Operating RangeThis push-in T-connector operates within a temperature range of -10°C to 80°C, making it suitable for a wide range of industrial applications. It also supports operating pressures from -0.95 to 6 bar, and up to 14 bar under temperature-dependent conditions.
3
Corrosion ResistanceThe QST-6-4-100 has a low corrosion stress classification (CRC 1), ensuring it can withstand the rigors of industrial environments. It is also RoHS-compliant, making it environmentally friendly.
4
Material QualityThe fitting is made from high-quality materials, including PBT for the housing, POM for the release ring, and NBR for the tubing seal. The use of high-alloy stainless steel for the tubing clamp component adds to its durability.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Size

Standard

Nominal width

2.3mm

Mounting position

Any

Design

T-shape

Pack size

100

Structural design

Push-pull principle

Ease of UseThe push-in design of the QST-6-4-100 makes it easy to install and remove pneumatic lines. The blue-colored release ring provides visual confirmation of the connection status, ensuring that the fitting is securely in place.

Maritime ClassificationThe QST-6-4-100 has been certified for maritime use, making it suitable for applications in marine environments. For specific maritime classification details, refer to the product certificate.

Operating pressure for entire temperature range

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

Product weight

11g

No. of outlets

No. of supply lines

Pneumatic connection 1

For pneumatic tubing outside diameter 6 mm

Pneumatic connection 2

for pneumatic tubing outside diameter 4 mm

Releasing ring color

Blue

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

130820