SMC Networks KQ2 Series User manual

Selectable seal method

Selectable surface treatment

Brass (No plating)

Brass + Electroless nickel plating

Face seal

1 Connection thread: R, NPT

Face seal

Improved tube insertion/removal

Insertion :

force

Previous model

KQ2

Compact and lightweight

Previous KQ2 series model: Male elbow, applicable tubing O.D. ø6, connection thread R1/8

KQ2

Dimensions

Height

Weight

shorter

Dimensions

Length

shorter

lighter

Tube removal strength is ensured to be equivalent to previous model.

30%

reduction

Max.

Removal :

force

reduction

Max.

ø12.8

25.5

19.4

10.4

15.5

Face seal adopted for threading.

Original thread construction which allows for the use of piping taper female threads (Rc, NPT)

Allows for neat and

compact piping

without protruding

threads

Mounted to a blow gun

(VMG11W-02-01)

After hand-tightening After hand-tighteningAfter tool-tightening After tool-tightening

Re-piping is possible.

Sealant tape is necessary because sealant be-

comes separated with repeated installation.

Repeated re-piping of up to 6 to 10 times is possi-

ble due to use of elastic sealant on seating.

Prevention of sealant residue/protrusion

The current sealant type leaves residue and protrudes out

from the threading when installing, making it necessary to

clear away the residue using an air blower or similar.

However, no residue is created when using a face seal.

Number of rotations

after hand-tightening

1/6 of a rotation

or less

2 to 3

rotations

Number of rotations

after hand-tightening

Improved installability

(Reduction in amount of tool-tightening required after hand-tightening)

A uniform height when using multiple fittings,

contributes to space saving

Uniform height Uneven heights

Effective space

Sealant

Face seal

Sealant

KQ2H06-02ASKQ2H06-02AP

Face seal Sealant

One-touch Fittings KQ2

Series

Oval Type/Round Type Variations

Oval Type Round Type

Hexagon Socket Head Male Connector

KQ2S

Oval Type Round Type

45 Male Elbow

KQ2K

Oval Type Round Type

Bulkhead Union

KQ2E

Oval Type Round Type

Universal Female Elbow

KQ2VF

Oval Type Round Type

Cross

KQ2TW

Oval Type Round Type

Male Elbow

KQ2L

Oval Type Round Type

Union Elbow

KQ2L

Oval Type Round Type

Plug-in Elbow

KQ2L

Oval Type Round Type

Reducer Elbow

KQ2L

Oval Type Round Type

Different Diameter Cross

KQ2TX

Oval Type Round Type

Male Branch Tee

KQ2T

Oval Type Round Type

Union Tee

KQ2T

Oval Type Round Type

Different Diameter Tee

KQ2T

Oval Type Round Type

Different Diameter Tee

KQ2T

Oval Type Round Type

Different Diameter Cross

KQ2TY

Oval Type Round Type

Hexagon Socket Head Universal Male Elbow

KQ2VS

Round Type

Branch Male Elbow

KQ2LU

Oval Type Round Type

Female Elbow

KQ2LF

Round TypeOval Type

Double Universal Male Elbow

KQ2VD

Oval Type Round Type

Triple Universal Male Elbow

KQ2VT

Round Type

Branch Universal Male Elbow

KQ2Z

Round Type

Double Branch Universal Male Elbow

KQ2ZD

Oval Type Round Type

Male Run Tee

KQ2Y

Round Type

Triple Branch Universal Male Elbow

KQ2ZT

Round Type

Branch Union Elbow

KQ2LU

Oval Type Round Type

Extended Plug-in Elbow

KQ2W

Oval Type Round Type

Male Delta Union

KQ2D

Oval Type Round Type

Delta Union

KQ2D

Round Type

Double Branch “Y”

KQ2UD

Round Type

Different Diameter Double Union “Y”

KQ2UD

Round Type

Different Diameter Plug-in “Y”

KQ2X

Round Type

Double Plug-in “Y”

KQ2XD

Round Type

Union “Y”

KQ2U

Round Type

Different Diameter Union “Y”

KQ2U

Round Type

Plug-in “Y”

KQ2U

Round Type

Branch “Y”

KQ2U

Oval Type Round Type

Plug-in Reducer

KQ2R

Round TypeOval Type

Bulkhead Male Elbow

KQ2LE

Oval Type Round Type

Tube Cap

KQ2C

Oval Type Round Type

Female Connector

KQ2F

Oval Type Round Type

Straight Union

KQ2H

Oval Type Round Type

Different Diameter Straight

KQ2H

Oval Type Round Type

Male Connector

KQ2H

Round Type

Branch Universal Female Elbow

KQ2ZF

Oval Type Round Type

Extended Male Elbow

KQ2W

Oval Type Round Type

Bulkhead Connector

KQ2E

Oval Type Round Type

Universal Male Elbow

KQ2V

The supported release button

type (oval type/round type) is

shown next to each product.

Oval Type

Round Type

Refer to the next page for details on the applicable tubing sizes of each shape.

From P.

101

Metric size Inch size

ø2 ø3.2 ø4 ø6 ø8 ø10 ø12 ø16 ø1/8" ø5/32" ø3/16" ø1/4" ø5/16" ø3/8" ø1/2"

One-touch Fittings KQ2

Series

ø2 ø3.2 ø4 ø6 ø8 ø10 ø12 ø16

Sealant/Gasket Seal

One-touch Fittings KQ2

Series

Applicable tubing

Gasket Seal (Uni Thread)

Connection thread

Rc G NPT NPTF

Applicable tubing

Metric

Inch

Face Seal

Applicable tubing

Metric

Inch

Connection thread

M R Rc UNF NPT

Connection thread

G R Rc NPT R

P.5

P.29

P.49

P.57

P.65

P.73

P.81

P.87

P.95

Metric

Inch

Oval Type Release Button

How to Order

····························

P.6

Variations

································

P.7

Dimensions

······························

P.9

Made to Order/Clean Series/

Spare Parts

······························

P.27

How to Order

····························

P.30

Variations

································

P.31

Dimensions

······························

P.33

Made to Order/Clean Series/

Spare Parts

······························

P.48

How to Order

····························

P.50

Variations

································

P.51

Dimensions

······························

P.52

Made to Order/Clean Series/

Spare Parts

······························

P.55

How to Order

····························

P.88

Variations

································

P.89

Dimensions

······························

P.90

Made to Order/Clean Series/

Spare Parts

······························

P.93

How to Order

····························

P.96

Variations

································

P.97

Dimensions

······························

P.98

Made to Order/Clean Series/

Spare Parts

······························

P.100

How to Order

····························

P.58

Variations

································

P.59

Dimensions

······························

P.60

Spare Parts

······························

P.63

How to Order

····························

P.66

Variations

································

P.67

Dimensions

······························

P.68

How to Order

····························

P.74

Variations

································

P.75

Dimensions

······························

P.76

How to Order

····························

P.82

Variations

································

P.83

Dimensions

······························

P.84

ø1/8" ø5/32" ø3/16" ø1/4" ø5/16" ø3/8" ø1/2"

ø2 ø3.2 ø4 ø6 ø8 ø10 ø12 ø16

Face seal

Applicable Tubing

Tubing material FEP, PFA, Nylon, Soft nylon, Polyurethane

Tubing O.D. ø1/8", ø3/16"

Specifications

Fluid Air, Water

1 2

Operating pressure range

−100 kPa to 1 MPa

Proof pressure (at 23°C) 3 MPa

Ambient and fluid temperature −5 to 60°C, Water: 0 to 40°C

(No freezing)

Thread Mounting section JIS B0203 (Taper thread for piping)

JIS B0205 (Metric coarse thread)

Nut section JIS B0205 (Metric fine thread)

Sealant on the threads Seal ring

1 The surge pressure must be under the maximum operating pressure.

2 Deionized water is not recommended for use as it may affect the material used in the fittings. In addition,

it is known to degrade the water quality.

3 Do not use the fittings with a leak tester or for vacuum retention because they are not guaranteed for zero

leakage.

Principal Parts Material

Body C3604, PBT

Stud C3604 (Thread portion)

Chuck Stainless steel 304

Guide Stainless steel 304

Release button POM

Seal, O-ring, Seal ring NBR

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 profile 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

confined space.

Body part rotates allowing for

positioning.

Face seal method

Seal

Stud

Release button

O-ring

Body

Piping installability is improved by changing

to the face seal structure.

Seal ring

Chuck

Guide

One-touch IN/OUT

connection.

Possible to use in

vacuum to −100 kPa.

Drastically reduces

screw-in time with the

face seal method.

Original thread construction which

allows for the use of piping taper

female thread (Rc)

Connection thread

Inch Size One-touch Fittings

Applicable Tubing: Inch Size, Connection Thread: R

KQ2

Series

Oval Type

A P05 01 1KQ2 H

One-touch fittings

Model

Symbol Model

Male connector

Male elbow

Male branch tee

Extended male elbow

Male run tee

Face seal

Thread material/Surface treatment

Symbol Thread material/Surface treatment

Brass

Brass + Electroless nickel plating

Applicable tubing O.D.

Symbol Size

ø1/8"

ø3/16"

Port size

Symbol Size

R1/8

R1/4

Threaded Type

How to Order

Oval type release button

For details on applicable tubing O.D. and port size

combinations for each model, refer to the charts on the

Dimensions page.

Inch Size One-touch Fittings

KQ2

Series

Applicable Tubing: Inch Size, Connection Thread: ROval Type

Metric Size M, R, RcInch Size UNF, NPTInch Size M, R, Rc

Metric Size GMetric Size R, RcInch Size NPTInch Size RMetric Size UniInch Size Uni

Sealant/Gasket SealFace SealGasket Seal

Oval

Type

Tubing One-touch

ﬁttings

Plug-in reducer/Plug-in elbow etc.

Tubing Tubing

Union elbow/Union tee/Straight union etc.

Accessory

Nipple/Plug etc.

Refer to page 31 and after for details.

Male connector

P.84KQ2H

Extended male elbow

P.84

KQ2W

Male elbow

P.84KQ2L

Basically, it is used

together with a male

elbow. Its extended

height allows for multi-

leveled piping and

prevents interference

among fittings.

Use to pipe a

female thread in the

same direction.

Most general model.

Use to pipe a

female thread at

right angles. Most

general model.

P.85KQ2T

Male branch tee

P.85

Male run tee

KQ2Y

Use to branch a

female thread in the

same direction and

at a 90° angle.

Use to branch a

female thread at

both 90° angles.

Inch Size One-touch Fittings

Oval Type Variations

Box wrenches and socket wrenches may interfere with oval type release buttons. Refer to page 217 for details.

This model does not

support oval type

release buttons. Refer

to the round type (from

page 195).

P.199

Branch “Y”

KQ2U

Applicable tubing

øD

Connection thread

øD

Connection thread

Applicable tubing

øD

Connection

thread

øD

Applicable tubing

Release button dimensions

Male Connector: KQ2H (Face seal)

: A (Brass), N (Brass + Electroless nickel plating)

Male Elbow: KQ2L (Face seal)

: A (Brass), N (Brass + Electroless nickel plating)

Extended Male Elbow: KQ2W (Face seal)

: A (Brass), N (Brass + Electroless nickel plating)

Applicable

tubing O.D.

[inch]

Connection

thread

Model

(Width

across

ﬂats)

Release button

dimensions

A M

Effective area

[mm

]

Min.

port

size

Weight

[g]

X Y

Nylon

Urethane

ø3/16

1/8

KQ2W05-01 P1

12 9.1 8.4 11 10 15 29.7 29 13.3 6.8 5.6 3.5 15.7

1/4

KQ2W05-02 P1

17 9.1 8.4 11 10 15 32 29 13.3 6.8 5.6 3.5 35.1

Applicable

tubing O.D.

[inch]

Connection

thread

Model

(Width

across

ﬂats)

Release button

dimensions

A M

Effective area

[mm

]

Min.

port

size

Weight

[g]

X Y

Nylon

Urethane

ø3/16

1/8

KQ2L05-01 P1

12 9.1 8.4 11 10 15 16 15.3 13.3 6.8 5.6 3.5 5.4

1/4

KQ2L05-02 P1

17 9.1 8.4 11 10 15 20.4 17.3 13.3 6.8 5.6 3.5 14.7

Applicable

tubing O.D.

[inch]

Connection

thread

Model

(Width

across

ﬂats)

Release button

dimensions

L A M

Effective area

[mm

]

Min.

port

size

Weight

[g]

X Y

Nylon

Urethane

ø1/8 1/8

KQ2H01-01 P1

12 6.7 6.7 9.5 14.1 8.9 13.3 3.4 2.9 2.5 6.3

1/4

KQ2H01-02 P1

17 6.7 6.7 9.5 15 7.4 13.3 3.4 2.9 2.5 15.1

ø3/16 1/8

KQ2H05-01 P1

12 8.3 8.4 11 16.7 11.5 13.3 7.8 6.5 3.5 6.8

1/4

KQ2H05-02 P1

17 8.3 8.4 11 15 7.4 13.3 7.8 6.5 3.5 13.9

Dimensions

Inch Size One-touch Fittings

KQ2

Series

Applicable Tubing: Inch Size, Connection Thread: ROval Type

Metric Size M, R, RcInch Size UNF, NPTInch Size M, R, Rc

Metric Size GMetric Size R, RcInch Size NPTInch Size RMetric Size UniInch Size Uni

Sealant/Gasket SealFace SealGasket Seal

Oval

Type

øD

Connection thread

øD

2 x Applicable tubing

Connection thread

Release button dimensions

Male Branch Tee: KQ2T (Face seal)

: A (Brass), N (Brass + Electroless nickel plating)

Male Run Tee: KQ2Y (Face seal)

: A (Brass), N (Brass + Electroless nickel plating)

Applicable

tubing O.D.

[inch]

Connection

thread

Model

(Width

across

ﬂats)

Release button

dimensions

A M

Effective

area [mm

]

Min.

port

size

Weight

[g]

X Y

Nylon

Urethane

ø3/16

1/8

KQ2Y05-01 P1

12 9.1 8.4 11 10

15.7 16 15.7 26.5 13.3

8.4 7 3.5 6.3

1/4

KQ2Y05-02 P1

17 9.1 8.4 11 10

15.7 20.4 15.7 28.5 13.3

8.4 7 3.5 15.6

Applicable

tubing O.D.

[inch]

Connection

thread

Model

(Width

across

ﬂats)

Release button

dimensions

A M

Effective area

[mm

]

Min.

port

size

Weight

[g]

X Y

Nylon

Urethane

ø3/16 1/8

KQ2T05-01 P1

12 9.1 8.4 11 10 15 16 15.3 13.3 8.4 7 3.5 6.2

1/4

KQ2T05-02 P1

17 9.1 8.4 11 10 15 20.4 17.3 13.3 8.4 7 3.5 15.5

Dimensions

KQ2

Series

Applicable Tubing: Inch Size, Connection Thread: ROval Type

Counterbore diameter ø

Seal bearing surface diameter ø

Rz 25

(Sealing face)

Chamfer dimension

Female thread

inclination angle:

1 or less

Thread

Proper thickness

Proper

coating

range

Non-coating

range

With sealant

For Pneumatic Piping/Fittings & Tubing

Prior to Use

Fittings with Sealant

Seal material (ﬂuororesin) is coated on the thread part with the proper thickness and range, that reduces the piping work, such as coating the seal

on the thread.

Female Thread Conditions Applicable to Face Seal

1. Surface roughness of bearing surface: Rz 25 or less

2. Chamfer dimension: øD1, Seal bearing surface diameter: øD2 (Refer to the table below.)

3. Female thread inclination angle: 1 or less

4. Counterbore diameter when the female thread is counterbored.: øD3

· Models with width across flats: Body width across flats x 1.1 or more

· Models other than hexagon (Hexagon socket head male connector etc.): Body dimensions + 0.2 mm or more

The width across flats and the body dimensions differ depending on the model even when the same thread size is used.

Refer to the dimensions in the catalog.

5. If oil content or sealant is sticking to the female thread, this may cause damage of the product. Remove it before piping.

Table 1

Precautions

For products that do not satisfy the female thread conditions shown above and the piping with a piping pitch narrower than the product dimension,

use the current sealant type.

The rubber parts of the face seal cannot be replaced.

The rubber parts of the face seal may fall off by the air blow and they cannot be mounted again. Be careful not to perform the air blow.

Connection

thread size

Chamfer dimension

[mm]

Seal bearing surface diameter

[mm]

R1/8 10.2 to 10.4 12 or more

R1/4 13.6 to 13.8 17 or more

R3/8 17.1 to 17.3 21 or more

R1/2 21.4 to 21.6 27 or more

NPT1/16 8.2 to 8.4 11.11 or more

NPT1/8 10.5 to 10.7 12.7 or more

NPT1/4 14.1 to 14.3 17.46 or more

NPT3/8 17.4 to 17.6 22 or more

NPT1/2 21.7 to 21.9 28.7 or more

G1/8 10.2 to 10.6 12 or more

G1/4 13.6 to 14.0 17 or more

G3/8 17.1 to 17.5 21 or more

G1/2 21.4 to 21.8 27 or more

215

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