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Compression Fittings（Tube-to-Tube Connection Shape：Straight）

Compression fitting is the general term for a pipe used to indirectly help connect one part to another. Compression fittings also have names such as joints and connectors. They are used to connect pipes and hoses. There are types that enable single-action attachment of the fitting end. They are known by names such as quick couplings. Black screw-in fittings are often used in standard pipes. Stainless steel fittings are highly corrosion-resistant, suitable for outdoor use. Fittings with inserts improve part strength and durability. Besides stainless steel, compression fittings are made of materials such as brass and alloys (65% copper and 35% zinc). The right compression fitting for the application should be selected by considering factors such as material, shape and type.

13 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
Connector - Union, Quick Seal, DK Type, Brass, UDC Series

Nitta

3-point, fitting body of a union connector, nut, and sleeve. Dedicated fitting for DK tubes. No need to wrap sealing tape.

Volume Discount

CAD ：

2D
Days to Ship: 10 Days or more
Union - Straight, Compression Fittings, 316SS, NSU Series

Nihon Pisco

All materials use SUS316 to provide excellent rust resistance. *The CAD data for this series is being revised. Data will be available as soon as modifications are complete.

[Features]
· SUS316, a substance with superior corrosion resistance, was used for all parts.
· Forgetting to attach and losing a sleeve never happens with the no-sleeve-required design.
· Purified with clean air and packaged in a Class 1000 clean room .
· Added inch sizes.
· Wide selection of products

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Union, Hose Fittings, 00 Series

Chiyoda

A cap-nut hose intermediate fitting with high pull-out strength.

Volume Discount

CAD ：

2D
Days to Ship: 8 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
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
Connector - Union, Quick Seal, Brass, UC4N Series

Nitta

The fitting main and insert are integrated at three points; the sleeve, nut, and fitting part of the brass type union connector (mm size). Also offers excellent negative pressure performance.

[Features]
· The tube is connected by Push One®.
· No need for jigs nor tools to connect the tube.
· Electroless nickel plated.
· There is little deterioration of the surface and elution of copper ions into the fluid is prevented.
· Flame retardant resin (equivalent to UL94 V-0 standards) is used.
· Incombustible PBT resin is used for the materials.
· Equivalent to UL94 V-0 standards, and has excellent self-extinguishing properties.
· Able to be used in environments prone to spatter.
· The R screws are sealed, and thus there is no need to wrap them with sealing tape.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Connector - Union, Quick Seal, Insert Type, 304SS, UC1N Series

Nitta

A 3-point stainless steel 90° elbow (inch sized) with fitting body, nut, and sleeve. The fitting body and insert are integrated. Provides excellent performance at negative pressures.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Connector - Union, Quick Seal, Insert Type, Brass, UC1N Series

Nitta

A 3-point union connector (inch sized) with integrated body, nut, and sleeve. The fitting body and insert are integrated. Provides excellent performance at negative pressures.

Volume Discount

CAD ：

2D
Days to Ship: 8 Days or more
Connector - Union, Chemifit, CP Series【5 Pieces Per Package】

Nitta

Injection molding ensures the inner surface of the union connector is smooth.

[Features]
· Screw-in type polypropylene resin fitting.
· Lightweight.
· Completely oil-free processed product.
· Parts are cleaned in a clean room.
· Injection molding ensures the inner surface is smooth.
· Non-polluting; does not produce contaminants.
· Special polypropylene resin is used as a material.
· Conforms to Ministry of Health, Labour and Welfare Notification 201 (2006) and Ministry of Health, Labour and Welfare Notification 370 (1956).

Volume Discount

CAD ：

2D
Days to Ship: 10 Days or more
Insert Pipe Fitting, KF Series, Straight Union, KFH Type【10 Pieces Per Package】

SMC

Used for connection of tubes in one direction.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 3 Days or more
SUS316 Insert Fittings KFG2 Series, Straight Union KFG2H【1-2 Pieces Per Package】

SMC

[Features]
· Compact, lightweight.
· Grease-free.
· Can be used with steam.
· Conforms to the Food Sanitation Act of Japan.
[Please refer to the following pages of the catalog]
Applicable tube outer diameter, metric p. 324; inch p. 330

Volume Discount

CAD ：

2D / 3D
Days to Ship: 3 Days or more
Union - Compression Fittings, N2403 Series

Brennan Industries

Brennan's Instrumentation Tube Fittings provide leak-proof, torque-free seals at all tubing connections. Brennan's Double-Ferrule and Single-Ferrule Tube Fittings are reusable several times and can withstand heavy impulse and vibration in both vacuum and pressure systems Exhaustive tests have proven that the tubing will yield before a Brennan Double-Ferrule joint starts leaking.

Brennan Instrumentation Tube Fitting Features:
· Self-aligning
· Work on thick and thin wall tubing
· Resist vibration
· Work on a variety of tube materials
· All components are made of the same material for thermal compatibility and corrosion resistance
· Resist temperature cycling
· Compensate for the variables encountered in the tube and materials
· Do not significantly reduce flow area

Performance
· Work in vacuums, as well as at low and high pressures
· Seal at low cryogenic temperatures, as well as elevated temperatures rated for the tube
· Seal consistently over a wide range of temperature cycling
· Seal repeatedly under both make and remake conditions
· Resist pressure beyond the tubing burst point

Assembly
· Use geometry rather than torque for uniformity of make-up. (To complete the joint, it requires only a 1-1/4 turn after snug-tightening.)
· Do not require disassembly and inspection of ferrule swaging at every make-up
· Do not require any special tools for assembly

Days to Ship: 11 Days

Days to Ship:	8 Days or more

Days to Ship:	10 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:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	10 Days or more

Days to Ship:	3 Days or more

Days to Ship:	3 Days or more

Days to Ship:	11 Days


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
Thread Size 2
Tube Size 1
Tube Size 2
Tube Inner Dia.(mm)
Tube Inner Dia. at the Smaller Dia. Section(mm)


Brand	Junkosha	Nitta	Nihon Pisco	Chiyoda	Junkosha	Junkosha	Nitta	Nitta	Nitta	Nitta	SMC	SMC	Brennan Industries
Product Series	Union - Compression Fittings, Brass, PU Series	Connector - Union, Quick Seal, DK Type, Brass, UDC Series	Union - Straight, Compression Fittings, 316SS, NSU Series	Union, Hose Fittings, 00 Series	Union - Compression Fittings, 316SS, U Series	Union - Flexible Tube Style, U Series	Connector - Union, Quick Seal, Brass, UC4N Series	Connector - Union, Quick Seal, Insert Type, 304SS, UC1N Series	Connector - Union, Quick Seal, Insert Type, Brass, UC1N Series	Connector - Union, Chemifit, CP Series【5 Pieces Per Package】	Insert Pipe Fitting, KF Series, Straight Union, KFH Type【10 Pieces Per Package】	SUS316 Insert Fittings KFG2 Series, Straight Union KFG2H【1-2 Pieces Per Package】	Union - Compression Fittings, N2403 Series
CAD	2D	2D	2D	2D	2D	2D	2D	2D	2D	2D	2D / 3D	2D / 3D
Days to Ship	8 Days or more	10 Days or more	8 Days or more	8 Days or more	12 Days or more	14 Days or more	8 Days or more	8 Days or more	8 Days or more	10 Days or more	3 Days or more	3 Days or more	11 Days
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	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection	Tube to Tube Equal Dia. Connection / Tube to Tube Stepped Dia. Connection
Thread-to-Tube Connection Shape	-	-	-	-	-	-	-	-	-	-	-	-	-
Tube-to-Tube Connection Shape	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight
Thread-to-Tube Multipoint Connection Shape	-	-	-	-	-	-	-	-	-	-	-	-	-
Related Components, Shapes, Types	-	-	-	-	-	-	-	-	-	-	-	-	-
Material	Copper	Copper	Stainless Steel	Copper	Stainless Steel	Stainless Steel	Copper	Stainless Steel	Copper	Plastic	Copper	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	Nickel Plating ～ Not Provided	Not Provided	Not Provided
Thread Types	-	-	-	-	-	-	-	-	-	-	-	-	-
Thread Size 1	-	-	-	-	-	-	-	-	-	-	-	-	-
Thread Size 2	-	-	-	-	-	-	-	-	-	-	-	-	-
Tube Size 1	3.18 mm ～ 12.7 mm	6 ～ 10	4 mm ～ 16 mm	6 mm ～ 16 mm	6 mm ～ 8 mm	10 mm	4 ～ 12	6.35 ～ 12.7	3.18 ～ 12.7	4 ～ 12	4 ～ 12	6 ～ 12.7	1" ～ 5/16"
Tube Size 2	-	-	-	-	-	-	-	-	-	-	-	-	1" ～ 5/16"
Tube Inner Dia.(mm)	2.36 ～ 9.56	-	2.5 ～ 13	4 ～ 11	4 ～ 6	6.5	2 ～ 9	-	-	-	2.5 ～ 9	3.95 ～ 9.53	1.3mm ～ 22.3mm
Tube Inner Dia. at the Smaller Dia. Section(mm)	-	-	-	-	-	-	-	-	-	-	-	-	1.3mm ～ 22.3mm

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
- Female Elbow
Clear

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

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

Related Components, Shapes, Types
- Caps
- Plugs
- Gaskets
- Nuts
- Bushings
- Sockets
- Sleeves
- Inserts
- Other Related Components
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
1/16"

1/8"

1/4"

3/8"

1/2"

5/8"

3/4"

1"

1/2

1/4

1/4B(8A)

1/8

1/8B(6A)

3/8

M10

M12

M14

M15

M17

M22

M6

M8
Clear

Thread Size 2
1/4"

3/8"

1/2"

3/4"
Clear

Tube Size 1
1/16"

1/8"

3/16"

1/4"

5/16"

3/8"

1/2"

5/8"

3/4"

7/8"

1"

1/"4

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
1/16"

1/8"

3/16"

1/4"

5/16"

3/8"

1/2"

5/8"

3/4"

7/8"

1"
Clear

Tube Inner Dia.(mm)
1.3mm

1.65

2

2.1

2.18

2.2

2.3

2.36

2.4

2.4mm

2.5

3

3.mm

3.48

3.95

3.96

4

4.5

4.57

4.8mm

5

5.9

6

6.3mm

6.35

6.5

6.99

7.1mm

7.5

7.6

7.7

7.8

7.9

8

9

9.53

9.56

9.9mm

10

11

12

12.7mm

13

15.8mm

16

18.2mm

22.3mm
Clear