How do the Festo Festo QB18 Series variants differ?

Festo QB18 Series part numbers differ by connection method, connector size, material and operating pressure. Use the selection guide above to pick by connection method.

How many Festo Festo QB18 Series part numbers are listed?

12 Festo Festo QB18 Series part numbers are listed, each with specifications and a datasheet where available.

How do I get pricing and lead time for Festo Festo QB18 Series?

Request a quote (RFQ) for any Festo QB18 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

Festo QB18 Series

12 variants · Festo

About the Festo Festo QB18 Series series

The Festo Festo QB18 Series series groups 12 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Variants differ by connection method, connector size and material, so you can match the exact connection method your application requires using the selection guide below. All listed Festo QB18 Series part numbers are active and orderable.

Select a variant by

Connection method

Parameter	QB-1/8-1/4-U	QB-1/8-3/8-U	QB-1/8-1/4-I-U	QB-1/8-5/16-I-U	QB-1/8-1/4-U-M	QB-1/8-3/16-U
Connection method	—	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded	Push-In to Threaded
Connector size	—	NPT1/8-27	NPT1/8-27	NPT1/8	NPT1/8-27	NPT1/8
Material	—	Nickel Plated Brass	Nickel Plated Brass	Nickel Plated Brass	Polybutylene Terephthalate (PBT)	Nickel Plated Brass
Operating pressure	—	-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)	-13.8 to 145 PSI (-0.95 to 10 bar)

Festo QB18 Series

About the Festo Festo QB18 Series series

Select a variant by

Variant comparison

Frequently asked questions

All variants

QB-1/8-1/4-U

QB-1/8-1/4-I-U

QB-1/8-1/4-U-M

QB-1/8-3/16-U

QB-1/8-3/16-U-M

QB-1/8-3/8-U

QB-1/8-5/16-I-U

QB-1/8-5/16-U

QB-1/8-5/16-U-M

QB-1/8-5/32-I-U

QB-1/8-5/32-U

QB-1/8-5/32-U-M

QB-1/8-1/4-U

QB-1/8-1/4-I-U

QB-1/8-1/4-U-M

QB-1/8-3/16-U

QB-1/8-3/16-U-M

QB-1/8-3/8-U

QB-1/8-5/16-I-U

QB-1/8-5/16-U

QB-1/8-5/16-U-M

QB-1/8-5/32-I-U

QB-1/8-5/32-U

QB-1/8-5/32-U-M