qst-4

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

The Festo QST-4 push-in T-connector is a high-quality, standard-sized (2.8mm nominal) pneumatic fitting designed for easy installation and reliable operation. Featuring a T-shape design and push-pull principle, it allows for flexible mounting positions and is suitable for both compressed air and water applications.

Product Modelqst-4

Material Number153128

Product ID2976

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Reliable ConnectionThe Festo QST-4 ensures a secure and leak-free connection with its robust design and high-quality materials, making it ideal for demanding industrial applications.
2
Versatile InstallationWith its optional mounting position, the QST-4 can be easily integrated into various pneumatic systems, providing flexibility in installation and operation.
3
Easy OperationThe push-pull principle design simplifies the connection process, reducing the risk of errors and ensuring quick setup times.
4
Comprehensive Temperature RangeThe QST-4 operates effectively within a wide temperature range (-10°C to 80°C), making it suitable for diverse environmental conditions.
5

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

2.8mm

Mounting position

Any

Design

T-shape

Pack size

Structural design

Push-pull principle

Corrosion ResistanceConstructed from high-quality materials like PBT and POM, the QST-4 offers low corrosion stress, ensuring long-lasting performance in harsh environments.

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

7.5g

No. of outlets

No. of supply lines

Pneumatic connection 1

for pneumatic tubing outside diameter 4 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

153128