(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
Instead, please kindly use other browsers like Google Chrome, Microsoft Edge or Mozilla Firefox.

  • Please be informed that our office is closed during the upcoming Labour Day Holiday in 2024. We would also like to inform you that there may be a potential delay in response/shipment from the supplier due to the Japan Golden Week holiday which falls from 29th April to 6th May 2024. Click here for details.
  • Please Note our New Address (effective April 1, 2024): 331 North Bridge Rd, #05-01 Odeon 331, Singapore 188720.

Fittings for Steel Pipes and Copper Pipes(Nominal 1:1/4)

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

  • Straight Pipe⇔Screw(Union/Socket/Reducer.etc)
  • Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)
  • Elbow
  • Tee
  1. 1
Brand
Product Series
Days to Ship
Applicable Fluid
Material
Connection Type
Type
Material of Applicable Pipe
Max. Operating Pressure(MPa)
Connection Thread Type
Applicable Pipe Type
Connection Shape
Fitting type
Applicable Tube Size Type
Nominal A 1
Nominal B 1
Nominal 1(mm)
Nominal 1(inch)
Applicable Pipe O.D. 1(mm)
Nominal A 2 [In case of different diameters]
Nominal of Thread
Nominal B 2 [In case of different diameters]
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

    Flare Fitting Flare Joint FS

      Copper Pipe Fittings, Ferrule Ring Fittings for Copper Tubes, Sockets With Ferrule Rings

        Ring Joint Male Thread Connector

          Ring Fitting and Joint RS

            Copper Pipe Fitting, Flare Copper Pipe Fitting, Flare Outer Thread Adapter

              Copper Tube Fitting Flare Fitting for Copper Tubes, Flare Socket

                Flare Fitting Flare Elbow FL

                  Copper Pipe Fitting, Ferrule Ring Type Copper Tube Fitting, Male Adapter With Ferrule Ring

                    Copper Tube Fitting, Abacus Bead Ring Fitting for Copper Tube, Tee with Abacus Bead Ring Included

                      Ring Fittings, Internal Screw, Ring Joint RF

                        Ring Fitting Branch Ring Joint RE for Different Diameters

                          Ring Fitting Dual Outlet Ring Elbow RL

                            Flare-Model Joint Double-Opening Flare Joint FS

                              Flare Fitting, Inner Screw/Flare Joint FF

                                Koyo System Fittings Threaded Connector

                                  Ring Fitting, Two-Port Ring Joint RS

                                    Ring Fitting, Two-Port Ring Joint RW with Lock Nuts  RW

                                      Ring Fitting, Ring Elbow RL

                                        Ring Fitting Triple Ring Tees RT

                                          Ring Joint  Service / Ring Tees

                                            Ring Joint 2-way Ring Tees RT

                                              Flared Joint  Differential Diameter Two-Port Flare Joint FE

                                                Flare Type Fitting Gauge Fitting FG

                                                  Flare Type Fitting Double Port Flare Elbow FL

                                                    Flare System Fitting Three-Sided Flare Tees FT

                                                      Flare Type Fitting, Two-Way Flare Tee FT

                                                        for Copper Tubes, Aluminum Brass Tubes and Cupola Nickel Tube, GU1-BA Type

                                                          Copper Tube B Type wedged Fittings GU-1 Type UNION

                                                            Copper Tube Fittings, Fittings for Flared Type Copper Tube, Flared Type One Side Threaded Elbow

                                                              Copper Tube Fittings, Fittings for Flared Type Copper Tube, Flared Type Tees

                                                                Copper Pipe Fitting, Fitting for Flared Copper Pipes, Flared Elbow

                                                                  Copper Pipe Fittings, Ferrule Ring Copper Pipes Fittings, One-Side Screw Elbow With Ferrule Rings

                                                                    Copper Tube Fitting, Abacus Bead Ring Fitting for Copper Tube, Elbow with Abacus Bead Ring Included

                                                                    Brand

                                                                    ASOH

                                                                    MIYAKO

                                                                    KOYO

                                                                    ASOH

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    ASOH

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    KOYO

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    ASOH

                                                                    FUJI SPECIAL

                                                                    FUJI SPECIAL

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    MIYAKO

                                                                    Product Series

                                                                    Flare Fitting Flare Joint FS

                                                                    Copper Pipe Fittings, Ferrule Ring Fittings for Copper Tubes, Sockets With Ferrule Rings

                                                                    Ring Joint Male Thread Connector

                                                                    Ring Fitting and Joint RS

                                                                    Copper Pipe Fitting, Flare Copper Pipe Fitting, Flare Outer Thread Adapter

                                                                    Copper Tube Fitting Flare Fitting for Copper Tubes, Flare Socket

                                                                    Flare Fitting Flare Elbow FL

                                                                    Copper Pipe Fitting, Ferrule Ring Type Copper Tube Fitting, Male Adapter With Ferrule Ring

                                                                    Copper Tube Fitting, Abacus Bead Ring Fitting for Copper Tube, Tee with Abacus Bead Ring Included

                                                                    Ring Fittings, Internal Screw, Ring Joint RF

                                                                    Ring Fitting Branch Ring Joint RE for Different Diameters

                                                                    Ring Fitting Dual Outlet Ring Elbow RL

                                                                    Flare-Model Joint Double-Opening Flare Joint FS

                                                                    Flare Fitting, Inner Screw/Flare Joint FF

                                                                    Koyo System Fittings Threaded Connector

                                                                    Ring Fitting, Two-Port Ring Joint RS

                                                                    Ring Fitting, Two-Port Ring Joint RW with Lock Nuts RW

                                                                    Ring Fitting, Ring Elbow RL

                                                                    Ring Fitting Triple Ring Tees RT

                                                                    Ring Joint Service / Ring Tees

                                                                    Ring Joint 2-way Ring Tees RT

                                                                    Flared Joint Differential Diameter Two-Port Flare Joint FE

                                                                    Flare Type Fitting Gauge Fitting FG

                                                                    Flare Type Fitting Double Port Flare Elbow FL

                                                                    Flare System Fitting Three-Sided Flare Tees FT

                                                                    Flare Type Fitting, Two-Way Flare Tee FT

                                                                    for Copper Tubes, Aluminum Brass Tubes and Cupola Nickel Tube, GU1-BA Type

                                                                    Copper Tube B Type wedged Fittings GU-1 Type UNION

                                                                    Copper Tube Fittings, Fittings for Flared Type Copper Tube, Flared Type One Side Threaded Elbow

                                                                    Copper Tube Fittings, Fittings for Flared Type Copper Tube, Flared Type Tees

                                                                    Copper Pipe Fitting, Fitting for Flared Copper Pipes, Flared Elbow

                                                                    Copper Pipe Fittings, Ferrule Ring Copper Pipes Fittings, One-Side Screw Elbow With Ferrule Rings

                                                                    Copper Tube Fitting, Abacus Bead Ring Fitting for Copper Tube, Elbow with Abacus Bead Ring Included

                                                                    Days to Ship 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 8 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 4 Day(s) or more 7 Day(s) or more 7 Day(s) or more 4 Day(s) or more 7 Day(s) or more 7 Day(s) or more 4 Day(s) or more 7 Day(s) or more 5 Day(s) or more 5 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 4 Day(s) or more 8 Day(s) or more
                                                                    Applicable FluidWater / Air / OilWater / vapor / OilAirWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / vapor / OilWater / vapor / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilAirWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / Air / OilWater / vapor / OilWater / vapor / Oil
                                                                    MaterialBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrassBrass
                                                                    Connection TypePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Screw, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, different diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, different diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Pipe, same diameters, plug-in typePipe⇔Screw, plug-in typePipe⇔Pipe, same diameters, plug-in type
                                                                    TypeFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFittingFitting
                                                                    Material of Applicable PipeCopperCopperCopper / Stainless SteelCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopperCopper
                                                                    Max. Operating Pressure(MPa)3.456.8673.456.866.863.456.866.863.453.453.453.453.4573.453.453.453.453.453.453.453.453.453.453.4515156.866.866.866.866.86
                                                                    Connection Thread TypeR-RRR-RR-Rc---RcR--R-RR-G (Tapped)--R--R--R-
                                                                    Applicable Pipe TypeCopper Pipe (Annealed Copper Pipe)Copper Pipe (General)Copper Pipe (General)Copper Pipe (Annealed Copper Pipe)Copper Pipe (General)Copper Pipe (General)Copper Pipe (Annealed Copper Pipe)Copper Pipe (General)Copper Pipe (General)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (Annealed Copper Pipe)Copper Pipe (General)Copper Pipe (General)Copper Pipe (General)Copper Pipe (General)Copper Pipe (General)Copper Pipe (General)Copper Pipe (General)
                                                                    Connection ShapeStraight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)ElbowStraight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)TeeStraight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)ElbowStraight Pipe⇔Screw(Union/Socket/Reducer.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)ElbowTeeTeeTeeStraight Pipe⇔Screw(Union/Socket/Reducer.etc)Straight Pipe⇔Screw(Union/Socket/Adapter/Connector.etc)ElbowTeeTeeStraight Pipe⇔Screw(Union/Socket/Reducer.etc)Straight Pipe⇔Screw(Union/Socket/Reducer.etc)ElbowTeeElbowElbowElbow
                                                                    Fitting typeFlare FittingsRing FittingRing FittingRing FittingFlare FittingsFlare FittingsFlare FittingsRing FittingRing FittingRing FittingRing FittingRing FittingFlare FittingsFlare FittingsFlare FittingsRing FittingRing FittingRing FittingRing FittingRing FittingRing FittingFlare FittingsFlare FittingsFlare FittingsFlare FittingsFlare FittingsBite type FittingsBite type FittingsFlare FittingsFlare FittingsFlare FittingsRing FittingRing Fitting
                                                                    Applicable Tube Size TypeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch size / Copper Pipe mm-inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch size / Copper Pipe mm-inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch sizeCopper Pipe inch size
                                                                    Nominal A 1---------------------------------
                                                                    Nominal B 1---------------------------------
                                                                    Nominal 1(mm)---------------------------------
                                                                    Nominal 1(inch)1/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/4
                                                                    Applicable Pipe O.D. 1(mm)6.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.356.35
                                                                    Nominal A 2 [In case of different diameters]---------------------------------
                                                                    Nominal of Thread1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)-1/8B(6A) / 1/4B(8A)1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)-1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)-1/4B(8A) / 3/8B(10A) / 1/2B(15A)---1/8B(6A) / 1/4B(8A) / 3/8B(10A)1/4B(8A)--1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)-1/4B(8A)1/8B(6A) / 1/4B(8A) / 3/8B(10A)-1/4B(8A) / 3/8B(10A)--1/8B(6A) / 1/4B(8A) / 3/8B(10A)--1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)--1/8B(6A) / 1/4B(8A) / 3/8B(10A) / 1/2B(15A)-
                                                                    Nominal B 2 [In case of different diameters]---------------------------------
                                                                    Nominal 2 [In the case of different diameters](mm)----------8 ~ 10----------8 ~ 10-----------
                                                                    Surface TreatmentNot Provided-Not ProvidedNot Provided--Not Provided--Not ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided-----
                                                                    Nominal 2 [In the case of different diameters](inch)----------3/8----------3/8-----------
                                                                    Applicable Pipe O.D. 2 [In the case of different diameters](mm)----------8 ~ 10----------8 ~ 10-----------
                                                                    Divisions of Max. Operating Pressure(MPa)than 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpathan 2.0Mpa
                                                                    Types of Related components---------------------------------

                                                                    Loading...

                                                                    1. 1

                                                                    Related Categories to Fittings for Steel Pipes and Copper Pipes