Datasheet
Applicable Tubing
Principal Parts Material
One-touch IN/OUT 
connection.
Possible to use in 
vacuum to -100 kPa.
Seal
Stud
Release button (Orange)
O-ring
Body
Release button (Orange)
Body
Chuck
Guide
Chuck
Guide
Seal
UNF, NPT
Connection thread
Suitable for use with nylon and 
urethane. Large retaining force.
The chuck provides secure retention 
and the collet increases the holding 
force on the tube.
Can be used for a wide range of 
pressures from a low vacuum 
up to a pressure of 1 MPa.
The use of a special profi le ensures 
sealing and reduces resistance when 
the tube is inserted.
Requires little force for 
removal.
Releases the chuck collet to remove 
the tube as well as to prevent the 
chuck from biting too deeply into the 
tubing.
Effective when piping in a 
confi ned space.
Body part rotates allowing for 
positioning.
∗ Fittings without thread portion, and with all resin body material are copper free specification.
Made to Order
(Refer to page 48 for details.)
Inch Size One-touch Fittings
Applicable Tubing: Inch Size, Connection Thread: UNF, NPT
Specifi cations
∗1 The surge pressure must be under the maximum operating pressure.
∗2 Do not use the fi ttings with a leak tester or for vacuum retention because they are not guaranteed for zero 
leakage.
Fluid
Air, Water
∗
1
Operating pressure range
∗
2
-100 kPa to 1 MPa
Proof pressure (at 23 °C)
3 MPa
Ambient and fl uid temperature
-5 to 60 °C, Water: 0 to 40 °C
(No freezing)
Thread
Mounting section
ANSI/ASME1.20.1 (NPT thread)
JIS B0208 (UNF thread)
Nut section
JIS B0208 (UNF thread)
Seal on the threads
With sealant
Body C3604, PBT, PP
Stud C3604 (Thread portion)
Chuck Stainless steel 304
Guide Stainless steel 304
Release button POM
Seal, O-ring NBR
Gasket Stainless steel 304, NBR
Tubing material FEP, PFA, Nylon, Soft nylon, Polyurethane
Tubing O.D. Ø 1/8", Ø 5/32", Ø 3/16"
KQ2 Series
Oval Type
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