Datasheet

Applicable Tubing
Specifications
Principal Parts Material
Tubing material
Tubing O.D.
FEP, PFA, Nylon, Soft nylon
Note 1)
, Polyurethane
ø2, ø3.2, ø4, ø6, ø8, ø10, ø12, ø16
Fluid
Operating pressure range
Note 3)
Proof pressure
Ambient and fluid temperature
Air/Water
Note 2)
−100 kPa to 1 MPa
3 MPa
JIS B0205 (Metric fine thread)
With sealant
Mounting section
Nut section
Thread
Seal on the threads
Note 2) The surge pressure must be under the maximum operating pressure.
Note 3) Do not use the fittings with a leak tester or for vacuum retention because they are not
guaranteed for zero leakage.
Body
Stud
Chuck
Guide
Release button
Seal, O-ring
Gasket
C3604, PBT, PP, Stainless steel 303
C3604 (Thread portion), Stainless steel 303 (Thread portion)
Stainless steel 304
Stainless steel 304
POM
NBR
Stainless steel 304, NBR
One-touch IN/OUT
connection.
Possible to use in
vacuum to –100 kPa
Note 1) For soft nylon tubing, water cannot be used.
−5 to 60°C, Water: 0 to 40°C
(No freezing)
JIS B0203 (Taper thread for piping)
JIS B0205 (Metric coarse thread)
Seal
Stud
Release button (Light gray)
O-ring
Body
Release button (Light gray)
Body
Chuck
Guide
Chuck
Guide
Seal
M, R, Rc
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.
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
confined space.
Body part rotates allowing for
positioning.
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 profile ensures
sealing and reduces resistance
when the tube is inserted.
∗ Fittings with all resin body material (KQ2 - A) are copper free specification.
Metric Size One-touch Fittings
Series KQ2
Applicable Tubing: Metric Size, Connection Thread: M, R, Rc
1