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KOYO Fittings for Steel Pipes and Copper Pipes（Thread Nominal：1/4B(8A)）

Narrow search by specifying Connection Shape

Straight Pipe-to-Screw (Union/Socket/Reducer, etc.)
Straight Pipe-to-Screw (Union/Socket/Adapter/Connector, etc.)
Elbow
Tee

7

Data to be displayed: 30; 45; 60

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?* Information on days to ship and prices

1

Ring Joint Thread Connector (G Thread Specifications)

Ring Joint Thread Connector (G Thread Specifications)

KOYO

Uses cadmium-free brass material.

Starting from^∗ ：	6.21 €
Min. Shipping Days ：	24 Days

*Unit price with basic configuration

Ring Joint Male Thread Connector

Ring Joint Male Thread Connector

KOYO

[Features]
· The product consists of the main body, ring and ring nut. Since it can be built by cutting the steel pipe with a pipe cutter, without machining, work efficiency is guaranteed.
· Moreover, it can be connected with annealed copper pipes and various tubes using a pin (insert ring) as well.

Starting from^∗ ：	4.01 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Ring Joint Male Thread Elbow Connector

Ring Joint Male Thread Elbow Connector

KOYO

[Features]
· The product consists of the main body, ring and ring nut. Since it can be built by cutting the steel pipe with a pipe cutter, without machining, work efficiency is guaranteed.
· Moreover, it can be connected with annealed copper pipes and various tubes using a pin (insert ring) as well.

Starting from^∗ ：	8.01 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Ring Joints Thread Run Tee

Ring Joints Thread Run Tee

KOYO

[Features] Ring fitting made of cadmium-free brass.

Starting from^∗ ：	15.05 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Rink Joint Thread Connector

Rink Joint Thread Connector

KOYO

Uses cadmium-free brass material.

Starting from^∗ ：	5.79 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Koyo System Fittings Threaded Connector

Koyo System Fittings Threaded Connector

KOYO

Uses cadmium-free brass material.

Starting from^∗ ：	5.29 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Koyo System Fitting Thread Branch Tee

Koyo System Fitting Thread Branch Tee

KOYO

[Features] Pressure expansion fitting made of cadmium-free brass.

Starting from^∗ ：	18.08 €
Min. Shipping Days ：	Same day

*Unit price with basic configuration


Brand
Product Series
Starting from^∗
Min. Shipping Days ：
Type
Material
Applicable Pipe Type
Applicable Fluid
Connection Type
Connection Shape
Fitting type
Applicable Tube Size Type
Nominal A 1
Nominal B 1
Material of Applicable Pipe
Nominal 1(mm)
Nominal 1(inch)
Applicable Pipe O.D. 1(mm)
Connection Thread Type
Nominal A 2 [In case of different diameters]
Thread Nominal
Nominal B 2 [In case of different diameters]
Max. Operating Pressure(MPa)
Nominal 2 [In the case of different diameters](mm)
Surface Treatment
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)
Types of Related components


Brand	KOYO	KOYO	KOYO	KOYO	KOYO	KOYO	KOYO
Product Series	Ring Joint Thread Connector (G Thread Specifications)	Ring Joint Male Thread Connector	Ring Joint Male Thread Elbow Connector	Ring Joints Thread Run Tee	Rink Joint Thread Connector	Koyo System Fittings Threaded Connector	Koyo System Fitting Thread Branch Tee
Starting from^∗	6.21 € *Unit price with basic configuration	4.01 € *Unit price with basic configuration	8.01 € *Unit price with basic configuration	15.05 € *Unit price with basic configuration	5.79 € *Unit price with basic configuration	5.29 € *Unit price with basic configuration	18.08 € *Unit price with basic configuration
Min. Shipping Days ：	24 Days	5 Days	5 Days	5 Days	5 Days	5 Days	Same day
Type	Fitting	Fitting	Fitting	Fitting	Fitting	Fitting	Fitting
Material	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Applicable Pipe Type	Copper Pipe (General)	Copper Pipe (General)	Copper Pipe (General)	Copper Pipe (General)	Copper Pipe (General)	Copper Pipe (Annealed Copper Pipe)	Copper Pipe (Annealed Copper Pipe)
Applicable Fluid	Air	Air	Air	Air	Air	Air	Air
Connection Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type	Pipe-to-Thread, Socket Type
Connection Shape	Straight Pipe-to-Screw (Union/Socket/Adapter/Connector, etc.)	Straight Pipe-to-Screw (Union/Socket/Adapter/Connector, etc.)	Elbow	Tee	Straight Pipe-to-Screw (Union/Socket/Adapter/Connector, etc.)	Straight Pipe-to-Screw (Union/Socket/Adapter/Connector, etc.)	Tee
Fitting type	Ring Fitting	Ring Fitting	Ring Fitting	Ring Fitting	Ring Fitting	Flare Fittings	Flare Fittings
Applicable Tube Size Type	Copper Pipe mm size	Copper Pipe mm size / Copper Pipe inch size	Copper Pipe mm size	Copper Pipe mm size	Copper Pipe mm size	Copper Pipe inch size	Copper Pipe mm size
Nominal A 1	-	-	-	-	-	-	-
Nominal B 1	-	-	-	-	-	-	-
Material of Applicable Pipe	Copper / Stainless Steel	Copper / Stainless Steel	Copper / Stainless Steel	Copper / Stainless Steel	Copper / Stainless Steel	Copper	Copper
Nominal 1(mm)	6	4 ～ 10	6 ～ 10	6	6 ～ 8	-	8
Nominal 1(inch)	-	1/4 ～ 3/8	-	-	-	1/4	-
Applicable Pipe O.D. 1(mm)	6	3.18 ～ 10	6 ～ 10	6	6 ～ 8	6.35	8
Connection Thread Type	G (Threaded)	R	R	R	Rc	R	Rc
Nominal A 2 [In case of different diameters]	-	-	-	-	-	-	-
Thread Nominal	1/4B(8A)	1/4B(8A)	1/4B(8A)	1/4B(8A)	1/4B(8A)	1/4B(8A)	1/4B(8A)
Nominal B 2 [In case of different diameters]	-	-	-	-	-	-	-
Max. Operating Pressure(MPa)	7	7	7	7	7	7	7
Nominal 2 [In the case of different diameters](mm)	-	-	-	-	-	-	-
Surface Treatment	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided
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)	More than 2.0MPa	More than 2.0MPa	More than 2.0MPa	More than 2.0MPa	More than 2.0MPa	More than 2.0MPa	More than 2.0MPa
Types of Related components	-	-	-	-	-	-	-

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Type
- Fitting
- Related Components
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Material
- Steel
- Brass
- Stainless Steel
- Copper
- Bronze
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Applicable Pipe Type
- Copper Pipe (General)
- Copper Pipe (for Construction)
- Copper Pipe (for Refrigerant)
- Copper Pipe (Annealed Copper Pipe)
- Copper Pipe (Controlled Copper Pipe)
- Steel pipe (general)
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Applicable Fluid
- Water
- Air
- Steam
- Gas
- Chemical
- Oil
- Powder
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Connection Type
- Pipe-to-Pipe, Equal Diameter, Socket Type
- Pipe-to-Pipe, Equal Diameter, Weld Type
- Pipe-to-Pipe, Reducing, Socket Type
- Pipe-to-Pipe, Reducing, Weld Type
- Pipe-to-Thread, Socket Type
- Pipe-to-Thread, Weld Type
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Fitting type
- Ring Fitting
- Flare Fittings
- Sleeve-type fittings
- Bite type Fittings
- Mechanical Joint
- Welding joint
- Special Purpose Fitting
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Applicable Tube Size Type
- Copper Pipe mm size
- Copper Pipe inch size
- Copper Pipe mm-inch size
- Size for Copper Pipe construction
- Size for Copper Pipe Refrigerant
- Steel pipe JIS size
- Steel pipe metric size
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Nominal A 1
6

8

10

13

15

20

25

30

32

40

50

65

80
Drawing

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Nominal B 1
1

1 1/2

1 1/4

1/2

1/4

1/8

2

2 1/2

3

3/4

3/8

5/8
Drawing

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Material of Applicable Pipe
- Steel
- Copper
- Stainless Steel
- PVC
- Polyethylene
- Polybutene
- Other Resins
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Nominal 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

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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

22.23

25

27.2

28

28.58

30

32

34

34.92

35

38

40

41.28

42

42.7

48.6

50

53.98

60.5

66.68

76.30

79.38

89.10
Drawing

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Connection Thread Type
- R
- Rc
- G (Threaded)
- G (Tapped)
- Rp
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Nominal A 2 [In case of different diameters]
6

8

10

15

20
Drawing

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 B 2 [In case of different diameters]
1/2

1/4

1/8

3/4

3/8
Drawing

Clear

Max. Operating Pressure(MPa)
0.6

1.0

1.75

1.96

2.94

3

3.45

3.5

4.9

6.86

7

13.7

14

15

20.69

21

28

31

40

50
Clear

Nominal 2 [In the case of different diameters](mm)
4

6

8

10

12

15

16

18

20

22

25

28

30
Drawing

Clear

Surface Treatment
- Not Provided
- Trivalent Chromate
- Zinc Plating
- Epoxy Resin
- Nickel Plating
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
- 2.0Mpa or Less
- More than 2.0MPa
Clear

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