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

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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

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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

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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

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• Nominal 1(inch)

  • 1/2
  • 1/4
  • 1/8
  • 3/4
  • 3/8
  • 5/8
  • 7/8

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• 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

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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

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• 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)

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• Nominal B 2 [In case of different diameters]

  • 1/2
  • 1/4
  • 1/8
  • 3/4
  • 3/8

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• 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

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

  • 4
  • 6
  • 8
  • 10
  • 12
  • 15
  • 16
  • 18
  • 20
  • 22
  • 25
  • 28
  • 30

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• Surface Treatment

  • Not Provided
  • Trivalent Chromate
  • Zinc Plating
  • Epoxy Resin
  • Nickel Plating

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

  • 1/2
  • 1/4
  • 3/8
  • 5/8

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• 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

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• Divisions of Max. Operating Pressure(MPa)

  • 1.0Mpa or Less
  • 2.0Mpa or Less
  • More than 2.0MPa

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• 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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