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Compression Fittings（Connection Types：Tube to Tube Stepped Dia. Connection）

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.

3 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 - Bulkhead, Compression Fittings, N2700-LN 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
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
Connector - Straight, Instrumentation Tube Fittings, Female NPT, Brass

USA Industrials

Straight Female Compression fittings have a single sleeve which bites into tubing as you tighten the nut to create a strong seal. Compression fittings with two sleeves are known as instrumentation fittings and provides better gripping power for higher pressure applications. Brass is a durable material.

Days to Ship: 13 Days

Days to Ship:	11 Days

Days to Ship:	11 Days

Days to Ship:	13 Days


Brand
Product Series
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	Brennan Industries	Brennan Industries	USA Industrials
Product Series	Union - Bulkhead, Compression Fittings, N2700-LN Series	Union - Compression Fittings, N2403 Series	Connector - Straight, Instrumentation Tube Fittings, Female NPT, Brass
Days to Ship	11 Days	11 Days	13 Days
Connection Types	Tube to Tube Stepped Dia. Connection	Tube to Tube Stepped Dia. Connection	Tube to Tube Stepped Dia. Connection
Thread-to-Tube Connection Shape	-	-	Female Straight
Tube-to-Tube Connection Shape	Partition Unions	Straight	-
Thread-to-Tube Multipoint Connection Shape	-	-	-
Related Components, Shapes, Types	-	-	-
Material	Stainless Steel	Stainless Steel	Brass
Surface Treatment	Not Provided	Not Provided	-
Thread Types	-	-	M
Thread Size 1	-	-	-
Thread Size 2	-	-	-
Tube Size 1	3/8"	1" ～ 3/8"	4mm ～ 14mm
Tube Size 2	1/4"	1/2" ～ 3/8"	-
Tube Inner Dia.(mm)	7.1mm	4.8mm ～ 22.3mm	-
Tube Inner Dia. at the Smaller Dia. Section(mm)	4.8mm	2.4mm ～ 15.8mm	-

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

2.2

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

9.56

9.9mm

10

11

12

12.7mm

13

15.8mm

16

18.2mm

22.3mm
Clear

Tube Inner Dia. at the Smaller Dia. Section(mm)
1.3mm

2.4mm

3.mm

4.8mm

6.3mm

7.1mm

9.9mm

12.7mm

15.8mm

18.2mm

22.3mm
Clear

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