How do the Festo Festo QBY1 Series variants differ?

Festo QBY1 Series part numbers differ by connection method, material, mounting and operating pressure. Use the selection guide above to pick by connection method.

How many Festo Festo QBY1 Series part numbers are listed?

20 Festo Festo QBY1 Series part numbers are listed, each with specifications and a datasheet where available.

How do I get pricing and lead time for Festo Festo QBY1 Series?

Request a quote (RFQ) for any Festo QBY1 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

Festo QBY1 Series

20 variants · Festo

About the Festo Festo QBY1 Series series

The Festo Festo QBY1 Series series groups 20 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common operating temperature of 60 °C and package of Bulk. Variants differ by connection method, material and mounting, so you can match the exact connection method your application requires using the selection guide below. All listed Festo QBY1 Series part numbers are active and orderable.

Parameter	QBY-1/2-1/2-U	QBY-1/2-3/8-U	QBY-1/4-1/2-U	QBY-1/4-3/8-U	QBY-1/2-5/16-U	QBY-1/2T-5/16-U
Connection method	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded	Push-In
Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Nickel Plated Brass	Polybutylene Terephthalate (PBT)
Mounting	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Chassis Mount
Operating pressure	-14 to 145 PSI (-1 to 10 bar)	-14 to 145 PSI (-1 to 10 bar)	-14 to 145 PSI (-1 to 10 bar)	-14 to 145 PSI (-1 to 10 bar)	-13.8 to 145 PSI (-0.95 to 10 bar)	-14 to 145 PSI (-1 to 10 bar)
Product type	Y-Fitting	Y-Fitting	Y-Fitting	Y-Fitting	Y-Fitting	Y-Adapter
Connector size	NPT1/2-14	NPT1/2-14	NPT1/4-18	NPT1/4-18	NPT 1/2	—

Festo QBY1 Series

About the Festo Festo QBY1 Series series

Select a variant by

Variant comparison

Shared specifications

Frequently asked questions

All variants

QBY-1/2-1/2-U

QBY-1/2-3/8-U

QBY-1/2-5/16-U

QBY-1/2T-3/8-U

QBY-1/2T-5/16-U

QBY-1/2T-U

QBY-1/4-1/2-U

QBY-1/4-1/4-U

QBY-1/4-3/16-U

QBY-1/4-3/8-U

QBY-1/4-5/16-U

QBY-1/4-5/32-U

QBY-1/8-1/4-U

QBY-1/8-3/8-U

QBY-1/8-5/16-U

QBY-1/4T-5/32-U

QBY-1/4T-U

QBY-1/8-5/32-U

QBY-10-32-UNF-1/4-U

QBY-10-32-UNF-5/32-U

QBY-1/2-1/2-U

QBY-1/2-3/8-U

QBY-1/2-5/16-U

QBY-1/2T-3/8-U

QBY-1/2T-5/16-U

QBY-1/2T-U

QBY-1/4-1/2-U

QBY-1/4-1/4-U

QBY-1/4-3/16-U

QBY-1/4-3/8-U

QBY-1/4-5/16-U

QBY-1/4-5/32-U

QBY-1/8-1/4-U

QBY-1/8-3/8-U

QBY-1/8-5/16-U

QBY-1/4T-5/32-U

QBY-1/4T-U

QBY-1/8-5/32-U

QBY-10-32-UNF-1/4-U

QBY-10-32-UNF-5/32-U