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Fittings for Steel & Copper Pipes（Types of Related components：Nut）

A copper pipe / steel pipe fitting is a fitting made of the same material as the pipe used when piping copper pipes or steel pipes. The material of copper pipe fittings used for water supply pipes and general refrigerant pipes is mainly brass, and the steel pipe fitting material suitable for transporting oil, air, gas, etc. is carbon steel. Some products are cadmium-free and lead-free hot-dip galvanized, and others are surface-treated with epoxy resin, which has excellent water and corrosion resistance. In addition to unions, sockets, and reducers that connect straight pipes, elbows that connect pipes by bending them 90 degrees, tees that branch into a T-shape, crosses that branch into four sides, etc. are available. Connections include screw-in connections and welding, as well as ring connections, abacus ball ring connections, etc. that can reduce the piping process. Note that the outer diameter of pipes and fittings is displayed in two types, millimeters and inches, and the outer diameter size may differ between JIS piping and ANSI piping.

Connection Shape

Union
Union, Inside- Outside Thread
Elbow
Tee
Cross

10 items

: 30; 45; 60

Nut - High-Pressure, Bite Fitting, KKN Series

Ihara Science

Fitting for the high-pressure piping of up to medium diameter of general hydraulic pressure (13.7 MPa~). Screw machining, welding, flaring, and brazing are not necessary, and pipe bending is also supported.

Volume Discount

CAD ：

3D
Days to Ship: 14 Days or more
Flare Nut - Brass, FN series

Inaba Denki

[Features]
· Compatible with refrigerants (R410A, R407C, R134a, R404A, R507A, R22, R32)

Volume Discount
Days to Ship: 8 Days or more
Flare Nut

Koyo

Cadmium-free brass material is used.

Volume Discount
Days to Ship: 8 Days or more
Nut - Compression Tube Fitting, Brass, RN Series

Asoh

A nut used in ring joints. Check size of the copper pipe and the screw on the main body before selection.

Volume Discount
Days to Ship: 8 Days or more
Nut - Compression Tube Fitting, Brass, FN Series

Asoh

A flare nut used for flare joints. Check the copper tube size and the body screws and make a selection.

Volume Discount
Days to Ship: 8 Days or more
Nut - Steel Compression Tube Fitting

Fuji Special

The product features a structure/functionality which allows for high tolerance to both external and internal high temperatures and durability against vibration, shock and harsh use.

Volume Discount
Days to Ship: 9 Days or more
Nut - Bite Fitting, B1 Type, GN Series

Fuji Special

B-type fitting for copper tubes usable at high pressures. Various types are available with quick delivery.

Volume Discount
Days to Ship: 10 Days or more
Nut - Biting Fitting, KKN Series

Ihara Science

The CE series of biting fittings were developed for hydraulic equipment subjected to up to 13.7 MPa of pressure.

Volume Discount
Days to Ship: 14 Days or more
Nut - Brass, Bite Fitting, KN Series

Ihara Science

A fitting for up to medium-diameter high-pressure piping, working under general hydraulic pressure. Use with maximum operating pressures of 3.5 MPa or less with no shock or vibration applied, such as lubricant, grease, or pneumatic piping.

Volume Discount
Days to Ship: 14 Days or more
Nut - Brass, Bite Fitting, B Type, KN Series

Ihara Science

A fitting for up to medium-diameter high-pressure piping when used within general hydraulic pressures. For hydraulic piping paths subject to impact pressure and vibration.

Volume Discount
Days to Ship: 14 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:	8 Days or more

Days to Ship:	9 Days or more

Days to Ship:	10 Days or more

Days to Ship:	14 Days or more

Days to Ship:	14 Days or more

Days to Ship:	14 Days or more


Brand
Product Series
CAD
Days to Ship
Material
Surface Treatment
Applicable Fluid
Max. Operating Pressure
Connection Type
Connection Shape
Thread Size 1(inch)
Thread Size 1(mm)
Connection Thread Type
Types
Types of Related components
Fitting type
Applicable Pipe Type
Applicable Tube Size Type
Tube Material
Thread Nominal
Nominal A 1
Nominal 1(inch)
Applicable Pipe O.D. 1(mm)
Nominal A 2 [In case of different diameters](mm)
Thread Size 2(inch)
Thread Size 2(mm)
Nominal 2 [In the case of different diameters](inch)
Applicable Pipe O.D. 2 [In the case of different diameters](mm)
Divisions of Max. Operating Pressure(MPa)


Brand	Ihara Science	Inaba Denki	Koyo	Asoh	Asoh	Fuji Special	Fuji Special	Ihara Science	Ihara Science	Ihara Science
Product Series	Nut - High-Pressure, Bite Fitting, KKN Series	Flare Nut - Brass, FN series	Flare Nut	Nut - Compression Tube Fitting, Brass, RN Series	Nut - Compression Tube Fitting, Brass, FN Series	Nut - Steel Compression Tube Fitting	Nut - Bite Fitting, B1 Type, GN Series	Nut - Biting Fitting, KKN Series	Nut - Brass, Bite Fitting, KN Series	Nut - Brass, Bite Fitting, B Type, KN Series
CAD	3D
Days to Ship	14 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	9 Days or more	10 Days or more	14 Days or more	14 Days or more	14 Days or more
Material	-	-	-	-	-	-	-	-	-	-
Surface Treatment	-	-	-	-	-	-	-	-	-	-
Applicable Fluid	-	-	-	-	-	-	-	-	-	-
Max. Operating Pressure	-	-	-	-	-	-	-	-	-	-
Connection Type	-	-	-	-	-	-	-	-	-	-
Connection Shape	-	-	-	-	-	-	-	-	-	-
Thread Size 1(inch)	-	-	-	-	-	-	-	-	-	-
Thread Size 1(mm)	-	-	-	-	-	-	-	-	-	-
Connection Thread Type	-	-	-	-	-	-	-	-	-	-
Types	Related Components	Related Components	Related Components	Related Components	Related Components	Related Components	Related Components	Related Components	Related Components	Related Components
Types of Related components	Nut	Nut	Nut	Nut	Nut	Nut	Nut	Nut	Nut	Nut
Fitting type	-	-	-	-	-	-	-	-	-	-
Applicable Pipe Type	-	-	-	-	-	-	-	-	-	-
Applicable Tube Size Type	-	-	-	-	-	-	-	-	-	-
Tube Material	-	-	-	-	-	-	-	-	-	-
Thread Nominal	-	-	-	-	-	-	-	-	-	-
Nominal A 1	-	-	-	-	-	-	-	-	-	-
Nominal 1(inch)	-	-	-	-	-	-	-	-	-	-
Applicable Pipe O.D. 1(mm)	-	-	-	-	-	-	-	-	-	-
Nominal A 2 [In case of different diameters](mm)	-	-	-	-	-	-	-	-	-	-
Thread Size 2(inch)	-	-	-	-	-	-	-	-	-	-
Thread Size 2(mm)	-	-	-	-	-	-	-	-	-	-
Nominal 2 [In the case of different diameters](inch)	-	-	-	-	-	-	-	-	-	-
Applicable Pipe O.D. 2 [In the case of different diameters](mm)	-	-	-	-	-	-	-	-	-	-
Divisions of Max. Operating Pressure(MPa)	-	-	-	-	-	-	-	-	-	-

Configure

Specification/Dimensions

Material
- Steel
- Brass
- Stainless Steel
Clear

Surface Treatment
- Not Provided
- Trivalent Chromate
- Zinc Plating
- Epoxy Resin
- Nickel Plating
Clear

Applicable Fluid
- Water
- Air
- Steam
- Gas
- Oil
- Powder
Clear

Metric / Inch
- metric
Clear

Max. Operating Pressure
1.0 - MPa

2.94 - MPa

3 - MPa

3.45 - MPa

3.5 - MPa

7 - MPa

7.0 - MPa

13.7 - MPa

14 - MPa

15 - MPa

20.69 - MPa

21 - MPa

28 - MPa

31 - MPa

40 - MPa

50 - MPa

125

150

1000

3900

4400

4600

4900

5300

5700

6100

6500

6600

7300

7600

7700

7800

8000

10000
Clear

Connection Type
- Pipe to Tube Insert, Equal Diameter
- Pipe to Tube Insert, Unequal Diameter
- Pipe to Thread Insert
Clear

Thread Size 1(inch)
1

1 1/2

1 1/4

1/2

1/4

1/8

2

2 1/2

2 1/4

3

3/4

3/8

4

5/8
Drawing

Clear

Thread Size 1(mm)
3

4

5

6

8

10

12

14

15

16

18

20

22

25

28

30

32

35

38

40

42

50
Drawing

Clear

Connection Thread Type
- R
- Rc
- NPT
Clear

Types
- Fitting
- Related Components
Clear

Types of Related components
- Sleeve
- Ring
- Nut
- Mounting Fitting
- Gasket seal
- Air Bleeding Valve
- Heat-Retention Material
Clear

Fitting type
- Ring Fitting
- Flare Fittings
- Sleeve-type fittings
- Bite type Fittings
- Mechanical Joint
Clear

Applicable Pipe Type
- Copper Pipe (General)
- Copper Pipe (for Refrigerant)
- Copper Pipe (Annealed Copper Pipe)
- Copper Pipe (Controlled Copper Pipe)
- Steel pipe (general)
Clear

Applicable Tube Size Type
- Copper Pipe mm size
- Copper Pipe inch size
- Copper Pipe mm-inch size
- Size for Copper Pipe Refrigerant
- Steel pipe JIS size
- Steel pipe metric size
Clear

Tube Material
- Steel
- Copper
- Stainless Steel
- PVC
- Polyethylene
- Resin
- Other Resins
Clear

Thread Nominal
- 1/8B(6A)
- 1/4B(8A)
- 3/8B(10A)
- 1/2B(15A)
- 3/4B(20A)
- 1B(25A)
- 1 1/4B(32A)
- 1 1/2B(40A)
- 2B(50A)
- 2 1/2B(65A)
- 3B(80A)
Drawing

Clear

Nominal A 1
6

8

10

13

15

20

25

30

32

40

50

65

80
Drawing

Clear

Nominal 1(inch)
1/2

1/4

1/8

3/4

3/8

5/8

7/8
Drawing

Clear

Applicable Pipe O.D. 1(mm)
3

3.18

4

5

6

6.35

8

9.52

9.53

10

10.50

12

12.70

13.80

14

15

15.14

15.88

16

17.3

18

19.05

20

21.7

22

22.22

25

27.2

28

30

32

34

35

38

40

42

42.7

48.6

50

60.5

76.30

89.10
Drawing

Clear

Nominal A 2 [In case of different diameters](mm)
6

8

10

15

20
Drawing

Clear

Thread Size 2(inch)
1

1 1/2

1 1/4

1/2

1/4

1/8

2

2 1/2

3

3/4

3/8

4
Drawing

Clear

Thread Size 2(mm)
4

6

8

10

12

15

16

18

20

22

25

28

30
Drawing

Clear

Nominal 2 [In the case of different diameters](inch)
1/2

1/4

3/8

5/8
Drawing

Clear

Applicable Pipe O.D. 2 [In the case of different diameters](mm)
4

6

6.35

8

9.52

9.53

10

10.5

12

12.70

13.80

15

15.88

16

17.30

18

20

21.7

22

25

27.2

28

30
Drawing

Clear

Divisions of Max. Operating Pressure(MPa)
- 1.0Mpa or Less
- than 2.0Mpa
Clear

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Clear

CAD

- 2D
- 3D
Clear

Days to Ship

All

Same day

4 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

14 Days or Less

15 Days or Less
Clear

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Fittings for Steel & Copper Pipes（Types of Related components：Nut）

Connection Shape

Configure

Specification/Dimensions

Material

Surface Treatment

Applicable Fluid

Metric / Inch

Max. Operating Pressure

Connection Type

Thread Size 1(inch)

Thread Size 1(mm)

Connection Thread Type

Types

Types of Related components

Fitting type

Applicable Pipe Type

Applicable Tube Size Type

Tube Material

Thread Nominal

Nominal A 1

Nominal 1(inch)

Applicable Pipe O.D. 1(mm)

Nominal A 2 [In case of different diameters](mm)

Thread Size 2(inch)

Thread Size 2(mm)

Nominal 2 [In the case of different diameters](inch)

Applicable Pipe O.D. 2 [In the case of different diameters](mm)

Divisions of Max. Operating Pressure(MPa)