SMC Push-Fit Wye Fitting: 4 mm OD x 4 mm OD x 1/8 in Pipe x 4 mm Pipe Size
The SMC Push-Fit Wye Fitting (MPN KQ2U04-01AS) is a polybutylene and brass tube fitting configured as Tube x Tube x BSPT x NPT, with port sizes of 4 mm OD x 4 mm OD x 1/8 in Pipe x 4 mm Pipe. This fitting enables…
SKU 3G-OTH-489109
Need installation or engineering help?
Ask a question
Product Description
The SMC Push-Fit Wye Fitting (MPN KQ2U04-01AS) is a polybutylene and brass tube fitting configured as Tube x Tube x BSPT x NPT, with port sizes of 4 mm OD x 4 mm OD x 1/8 in Pipe x 4 mm Pipe. This fitting enables branching of pneumatic or fluid lines in a compact wye configuration, leveraging SMC's push-to-connect technology for tool-free installation.
Frequently Asked Questions
What is the SMC Push-Fit Wye Fitting KQ2U04-01AS used for?
The SMC Push-Fit Wye Fitting KQ2U04-01AS is used to branch pneumatic or fluid lines in a compact wye configuration. It connects 4 mm OD tubing to a 1/8 in BSPT or NPT threaded port, enabling tool-free installation via SMC's push-to-connect technology in industrial automation and fluid handling systems.
What are the specifications of the SMC KQ2U04-01AS fitting?
The SMC KQ2U04-01AS is a polybutylene and brass tube fitting with a Tube x Tube x BSPT x NPT configuration. Port sizes are 4 mm OD x 4 mm OD x 1/8 in Pipe x 4 mm Pipe. It is designed for tool-free push-to-connect installation in pneumatic or fluid line branching applications.
Where to buy the SMC KQ2U04-01AS fitting worldwide?
3G Electric supplies the SMC KQ2U04-01AS push-fit wye fitting worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this SMC fitting for your pneumatic or fluid system needs.
How to install the SMC push-fit wye fitting?
To install the SMC push-fit wye fitting, ensure tubing is cut square and free of burrs. Push the tube firmly into the fitting until it stops; the collet grips automatically. For threaded ports, apply sealant to the 1/8 in BSPT or NPT thread and tighten. No tools are required for the tube connection.
Used in
Common applications for SMCSMC Products
3G Electric supplies SMC polybutylene & brass tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









