While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Please use the inquiry form.

Customer Privacy Policy

Junkosha Compression Fittings（Connection Types：Tube to Tube Equal Dia. Connection）

10 items

: 30; 45; 60

Days to Ship	All Same day 3 Days or Less 6 Days or Less 7 Days or Less 8 Days or Less 9 Days or Less 10 Days or Less 11 Days or Less 12 Days or Less 13 Days or Less

Union - Compression Fittings, Brass, PU Series

Junkosha

Conforms to Japanese Industrial Standards JIS B8381 for pneumatic fittings. The mechanism clamps on to the tube insert with the sleeve and the cap nut for a reliable connection. With collar thread seal for each R (PT) thread size.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Tees - Union, Compression Fittings, PTU Series

Junkosha

[Features]
· The union tees of the metric Series conform to Japanese Industrial Standard JIS B8381 ‘Pneumatic Fittings’.
· A mechanism where the tube insert is held and fastened by a sleeve and cap nut to create a secure connection
· The connection will remain intact until the tube breaks.
· Equipped with a threaded collar thread by R (PT) thread size.
· Supports compressed air lines, water pressure, and hydraulic pressure.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
90° Elbows - Compression Fittings, PLU Series

Junkosha

Conforms to Japanese Industrial Standards JIS B8381 for pneumatic fittings. The mechanism clamps on to the tube insert with the sleeve and the cap nut for a reliable connection. With collar thread seal for each R (PT) thread size.

Volume Discount

CAD ：

2D
Days to Ship: 12 Days or more
Union - Bulkhead, Compression Fittings, PUP Series

Junkosha

Conforms to Japanese Industrial Standards JIS B8381 "Pneumatic Fittings." Allows for reliable connections because the mechanism takes the tube insert and clamps onto it with the sleeve and the cap nut. With collar thread seal for each R (PT) thread size.

Volume Discount
Days to Ship: 14 Days or more
Union - Compression Fittings, 316SS, U Series

Junkosha

Usable across a broad temperature range. Free of wear to tubing due to over-tightening of cap nut, etc. No abnormality in the connector unless the tube ruptures. Does not require management of cap nut tightening torque.

Volume Discount

CAD ：

2D
Days to Ship: 12 Days or more
Tees - Compression Fittings, 316SS, TU Series

Junkosha

Usable across a broad temperature range. Free of wear to tubing due to over-tightening of cap nuts, etc. No abnormality in the connector unless the tube ruptures. Does not require management of cap nut tightening torque.

Volume Discount

CAD ：

2D
Days to Ship: 12 Days or more
90° Elbows - Compression Fittings, 316SS, LU Series

Junkosha

Usable across a broad temperature range. Free of wear to tubing due to over tightening of cap nut and the like. No abnormality in the connected part unless the tube ruptures. Does not require management of cap nut tightening torque.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Union - Bulkhead, Compression Fittings, 316SS, PUS Series

Junkosha

Usable across a broad temperature range. No wear and tear to tubing as a result of the over tightening of cap nut, etc.

[Features]
· Because the product consists of SUS316, which has high corrosion resistance properties, it can be used in a wide temperature range, at both low and high temperatures.
· Designed especially for fluorine polymer/nylon resin tubes, so the tube does not rupture due to excessive tightening of cap nuts, etc.
· No abnormality in the connected part unless the tube is ruptured.
· The tightening torque of the cap nut does not need to be managed.
Fitting uses SUS316, so it resists rust.

Volume Discount

CAD ：

2D
Days to Ship: 12 Days or more
Union - Flexible Tube Style, U Series

Junkosha

Stainless steel fittings for flexible tubing. To resolve tube twisting during piping, cap nuts built into the sleeve that use the unique Junkosha mechanism are employed. The cap nut tightening torque does not require management.

Volume Discount

CAD ：

2D
Days to Ship: 14 Days or more
Tees - Union, Flexible Tube Style, TU Series

Junkosha

Stainless steel fittings for flexible tubing. To resolve tube twisting during piping, we use cap nuts built into the sleeve that use a unique Junkosha mechanism. Does not require management of cap nut tightening torque.

Volume Discount

CAD ：

2D
Days to Ship: 14 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	12 Days or more

Days to Ship:	14 Days or more

Days to Ship:	12 Days or more

Days to Ship:	12 Days or more

Days to Ship:	8 Days or more

Days to Ship:	12 Days or more

Days to Ship:	14 Days or more

Days to Ship:	14 Days or more


Brand
Product Series
CAD
Days to Ship
Connection Types
Thread-to-Tube Connection Shape
Tube-to-Tube Connection Shape
Thread-to-Tube Multipoint Connection Shape
Related Components, Shapes, Types
Material
Surface Treatment
Thread Types
Thread Size 1
Tube Size 1
Tube Size 2
Tube Inner Dia.(mm)


Brand	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha	Junkosha
Product Series	Union - Compression Fittings, Brass, PU Series	Tees - Union, Compression Fittings, PTU Series	90° Elbows - Compression Fittings, PLU Series	Union - Bulkhead, Compression Fittings, PUP Series	Union - Compression Fittings, 316SS, U Series	Tees - Compression Fittings, 316SS, TU Series	90° Elbows - Compression Fittings, 316SS, LU Series	Union - Bulkhead, Compression Fittings, 316SS, PUS Series	Union - Flexible Tube Style, U Series	Tees - Union, Flexible Tube Style, TU Series
CAD	2D	2D	2D		2D	2D	2D	2D	2D	2D
Days to Ship	8 Days or more	8 Days or more	12 Days or more	14 Days or more	12 Days or more	12 Days or more	8 Days or more	12 Days or more	14 Days or more	14 Days or more
Connection Types	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection
Thread-to-Tube Connection Shape	-	-	-	-	-	-	-	-	-	-
Tube-to-Tube Connection Shape	Straight	Tees	Elbows	Partition Unions	Straight	Tees	Elbows	Partition Unions	Straight	Tees
Thread-to-Tube Multipoint Connection Shape	-	-	-	-	-	-	-	-	-	-
Related Components, Shapes, Types	-	-	-	-	-	-	-	-	-	-
Material	Copper	Copper	Copper	Copper	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
Surface Treatment	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided
Thread Types	-	-	-	-	-	-	-	-	-	-
Thread Size 1	-	-	-	-	-	-	-	-	-	-
Tube Size 1	3.18 mm ～ 12.7 mm	3.18 mm ～ 12.7 mm	8 mm ～ 12 mm	6 mm	6 mm ～ 8 mm	6 mm ～ 12 mm	6 mm ～ 10 mm	10 mm ～ 12 mm	10 mm	12 mm
Tube Size 2	-	-	-	-	-	-	-	-	-	-
Tube Inner Dia.(mm)	2.36 ～ 9.56	2.36 ～ 9.56	5 ～ 9	4	4 ～ 6	4 ～ 9	4 ～ 8	7.5 ～ 9	6.5	8

Configure

Specification/Dimensions

Connection Types
- Thread to Tube Connection
- Thread to Tube Multipoint Connection
- Tube to Tube Equal Dia. Connection
- Tube to Tube Stepped Dia. Connection
- Pipe to Tube Connection
- Related Components
Clear

Thread-to-Tube Connection Shape
- Elbows
- Male Straight
- Female Straight
- Male Elbow
Clear

Tube-to-Tube Connection Shape
- Straight
- Elbows
- Tees
- Partition Unions
Clear

Thread-to-Tube Multipoint Connection Shape
- Tees
- Manifolds
Clear

Related Components, Shapes, Types
- Gaskets
- Nuts
- Bushings
- Sockets
- Sleeves
- Inserts
Clear

Material
Brass

Copper

Plastic

Stainless Steel

Steel
Clear

Surface Treatment
Nickel Plating

Not Provided
Clear

Thread Types
S(SAE J514)

G

IKOU

M

NPT

R

Rc

UNF
Clear

Metric / Inch
- metric
Clear

Thread Size 1
1/2

1/4

1/4B(8A)

1/8

1/8B(6A)

3/8

M6

M8

M10

M12

M14

M15

M17

M22
Clear

Tube Size 1
1/8"

3/16"

1/4"

3/8"

1/2"

1/4" x 10mm

1/4" x 12mm

1/4" x 4mm

1/4" x 6mm

10

10 mm

10mm

12

12 mm

12.7

12.7 mm

12.70 mm

12mm

14mm

15.88

16

16 mm

21

3.18

3.18 mm

3mm

4

4 mm

4.76

4.76 mm

4mm

6

6 mm

6.35

6.35 mm

6mm

7.94

7.94 mm

8

8 mm

8mm

9

9 mm

9.53

9.53 mm
Clear

Tube Size 2
1/8"

1/4"

3/8"

1/2"
Clear

Tube Inner Dia.(mm)
1.65

2

2.1

2.2

2.3

2.36

2.4

2.5

3

3.48

3.95

3.96

4

4.5

4.57

5

5.9

6

6.35

6.5

6.99

7.5

7.6

7.7

7.8

7.9

8

9

9.56

10

11

12

13

16
Clear