Copper Fittings
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NIBCO brand copper wrought (wrot) and cast fittings are manufactured in USA and Mexico. The fittings have accuracy of construction and design which make copper plumbing more efficient and less expensive. The copper fittings are made from the highest quality raw materials available which is alloy.
Cast copper alloys have an extremely huge range of application and they are used effectively in every industrial market category from ordinary plumbing goods to precision electronic components. It is applicable in state-of-the-art marine and nuclear equipment. Their favorable properties are often available in useful combinations in every application. |
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Size |
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Material |
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Working Pressure |
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Connection |
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Copper Fittings Catalogue
| Nibco Copper Fittings.pdf |
What are copper fittings
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1. What is NIBCO copper fitting made?
Cast fittings are made from copper alloy C84400 which consists a chemical composition of 81% copper, 9% zinc, 7% lead and 3% tin as per ASTM B584 specification, while wrot copper fittings are made from pure copper mill products as per ASTM B75 specification that is alloy. |
Tee C x C x C – Cast
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2. What is a wrought (wrot) copper fitting?
Wrought or wrot copper fittings are used for pressure application and are made in accordance to ASME/ANSI B16.22 requirements, wrought copper & copper alloy solder joint pressure fittings. These fittings are manufactured from various type of alloys, C10200, C12000, C23000 or any copper alloy that contains chemical content of a minimum 84% copper (Cu) and a maximum of 16% zinc (Zn).
Wrought or wrot copper fittings are used for pressure application and are made in accordance to ASME/ANSI B16.22 requirements, wrought copper & copper alloy solder joint pressure fittings. These fittings are manufactured from various type of alloys, C10200, C12000, C23000 or any copper alloy that contains chemical content of a minimum 84% copper (Cu) and a maximum of 16% zinc (Zn).
These fittings are made to suit ASTM B88 seamless copper pipe and the standard outer diameter (OD) sizes are from 1/4" to 12” nominal diameters. The sizes of any threaded female or male connections correspond to nominal pipe sizing and the requirements of ASME/ANSI B1.20.1.
Adapter C x M – Wrot
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These wrought fittings have a four times burst pressure rated internal working pressure of type M, L and K seamless copper pipe in annealed temper. The fitting marking shall be in accordance with MSS SP-25. There is a permanent mark indicative of the manufacturer’s name or trademark and the marking may be omitted from the fitting body if it could damage the soldering surfaces during installation. Here is the fitting model list for wrot copper solder joint fittings.
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Model No |
Type |
Description |
600 |
Wrot |
Reducing Coupling C x C |
600-RS |
Wrot |
Coupling with Rolled Tube Stop C x C |
600-DS |
Wrot |
Coupling with Dimpled Tube Stop C x C |
600-2 |
Wrot |
Reducing Coupling Ftg x C |
601 |
Wrot |
Coupling without Stop C x C |
603 |
Wrot |
Adapter C x F |
603-2 |
Wrot |
Fitting Adapter Ftg x F |
604 |
Wrot |
Adapter C x M |
604-2 |
Wrot |
Fitting Adapter Ftg x M |
606 |
Wrot |
45° Elbow C x C |
606-2 |
Wrot |
45° Elbow Ftg x F |
607 |
Wrot |
90° Elbow Close Rough C x C |
607-I |
Wrot |
90° Elbow Intermediate Radius C x C |
607-LT |
Wrot |
90° Elbow Long Radius C x C |
607-2 |
Wrot |
90° Elbow Close Rough Ftg x C |
607-2-I |
Wrot |
90° Elbow Intermediate Radius Ftg x C |
607-2-LT |
Wrot |
90° Elbow Long Radius Ftg x C |
607-2-2 |
Wrot |
90° Elbow Close Rough Ftg x Ftg |
607-2-2-LT |
Wrot |
90° Elbow Long Radius Ftg x Ftg |
611 |
Wrot |
Tee C x C x C |
611-2 |
Wrot |
Tee C x Ftg x C |
617 |
Wrot |
Tube Cap C |
618 |
Wrot |
Flush Bushing Ftg x C |
618-3 |
Wrot |
Flush Bushing Ftg x F |
633-W |
Wrot |
Union C x C |
3. What is a CAST copper fitting?
Cast copper alloy fittings are used in solder joint application and are made according to ASME/ANSI B16.18 requirements, cast copper alloy solder joint pressure fittings. The fittings are produced according to standard of ASTM B62, alloy C83600 or the chemical and tensile requirement of ASTM B584, alloys C83800 or C84400. Essentially, the elemental makes up of these cast brass fittings is approximately equal to 85% copper (Cu), 5% lead (Pb), 5% zinc (Zn) and 5% tin (Sn).
The copper fittings size is made to meet the requirement of seamless copper pipes, ASTM B88 for size 1/4” to 12” nominal diameters and threaded female and male connections correspond to nominal pipe size. The fitting body has permanent mark indicative of its trademark. The type L seamless copper pipe burst strength shall be equal or bigger than actual fitting burst strength.
Cast bronze threaded fittings in class 125 and class 250 are manufactured according to ASME/ANSI B16.15 standards. These fittings meet the requirements of ASTM B62, alloy C83600 or chemical and tensile requirements of ASTM B584, alloys C83800 or C838400. To manufacture fittings from bar stock in smaller sizes such as wrought plugs, round or hex bushings, caps and couplings, the alloys is required to meet the standards of alloy C32000, C36000 (free cutting brass rod, bar and shapes) or C31400 (leaded brass).
Cast copper alloy fittings are used in solder joint application and are made according to ASME/ANSI B16.18 requirements, cast copper alloy solder joint pressure fittings. The fittings are produced according to standard of ASTM B62, alloy C83600 or the chemical and tensile requirement of ASTM B584, alloys C83800 or C84400. Essentially, the elemental makes up of these cast brass fittings is approximately equal to 85% copper (Cu), 5% lead (Pb), 5% zinc (Zn) and 5% tin (Sn).
The copper fittings size is made to meet the requirement of seamless copper pipes, ASTM B88 for size 1/4” to 12” nominal diameters and threaded female and male connections correspond to nominal pipe size. The fitting body has permanent mark indicative of its trademark. The type L seamless copper pipe burst strength shall be equal or bigger than actual fitting burst strength.
Cast bronze threaded fittings in class 125 and class 250 are manufactured according to ASME/ANSI B16.15 standards. These fittings meet the requirements of ASTM B62, alloy C83600 or chemical and tensile requirements of ASTM B584, alloys C83800 or C838400. To manufacture fittings from bar stock in smaller sizes such as wrought plugs, round or hex bushings, caps and couplings, the alloys is required to meet the standards of alloy C32000, C36000 (free cutting brass rod, bar and shapes) or C31400 (leaded brass).
Model No |
Type |
Description |
701 |
Cast |
Reducing Coupling C x C |
701-D |
Cast |
Drain Coupling C x C |
702 |
Cast |
Eccentric Coupling C x C |
703 |
Cast |
Adapter C x F |
703-2 |
Cast |
Fitting Adapter Ftg x F |
703-5 |
Cast |
Special Drop Adapter C x F |
703-5B |
Cast |
Drop Adapter C x F |
704 |
Cast |
Adapter C x M |
704-F |
Cast |
Flush Adapter C x M |
704-H |
Cast |
Hose Adapter C x Hose |
704-2 |
Cast |
Fitting Adapter Ftg x M |
704-2H |
Cast |
Hose Adapter Ftg x Hose |
706-2 |
Cast |
45° Elbow Ftg x C |
707 |
Cast |
90° Elbow Close Rough C x C |
707-2-4 |
Cast |
90° Elbow Ftg x M |
707-3 |
Cast |
90° Elbow C x F |
707-3-5 |
Cast |
90° Drop Elbow C x F |
711 |
Cast |
Tee C x C x C |
717 |
Cast |
Tube Cap C |
717-D |
Cast |
Drain Cap |
718-3 |
Cast |
Flush Bushing Ftg X F |
733 |
Cast |
Union C x C |
733-2 |
Cast |
Union Ftg x C |
733-3 |
Cast |
Union C x F |
733-4 |
Cast |
Union C x M |
735 |
Cast |
Cross C x C x C x C |
736 |
Cast |
Cross Over Coupling C x C |
750 |
Cast |
Bulkhead Fitting C x C |
750-3 |
Cast |
Bulkhead Fitting C x F |
750-4 |
Cast |
Bulkhead Fitting C x M |
4. What does FTG mean in copper fittings?
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Ftg refers to male sweat connection and C refers to female sweat connection in copper fittings. Male sweat connection is the connection equal to the copper pipe size. With the copper fittings, it indicates that an end is the same diameter dimension as the copper pipe end connection, so that it will slide into another fitting designed for copper pipe. The ftg end connection slides into the C end and it can be soldered inside a regular female sweat copper fitting.
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Fitting Reducer Ftg x C – Wrot
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Male or female NPT threaded end connection are often referring to copper fittings has external male or internal female threads that can be connected to an equally sized threaded fittings or pipes respectively.
5. What are copper alloys?
The following properties are the reason why cast copper alloys are most often selected as part of the chemical composition:
The following properties are the reason why cast copper alloys are most often selected as part of the chemical composition:
- Excellent corrosion resistance
- Favorable mechanical properties
- Friction and wear properties
- Bio-fouling resistance
- Excellent machinability and fabricability
- Good castability
6. How do you solder step by step?
When adjoining surfaces of copper and copper alloys prepared under proper conditions of cleanliness, working temperature and working pressure, soldering will make a perfect adhesion. The strength of joint is equal or even greater than the strength of tube and the surface tension will seal the joint as capillary attraction draws solder into, around, and all about the joint. Here are some easy steps on how to make a perfect solder when you join copper fittings.
When adjoining surfaces of copper and copper alloys prepared under proper conditions of cleanliness, working temperature and working pressure, soldering will make a perfect adhesion. The strength of joint is equal or even greater than the strength of tube and the surface tension will seal the joint as capillary attraction draws solder into, around, and all about the joint. Here are some easy steps on how to make a perfect solder when you join copper fittings.
- Step 1: Cut the pipe end square, ream, burr and correct size.
- Step 2: Use sand cloth or steel wire brush to clean the pipe and cup to a bright metal finish.
- Step 3: Apply solder flux to outside of pipe and inside of fitting cup carefully, so that surfaces to be joined are completely covered. Use flux sparingly and wisely.
- Step 4: Apply flame to the fitting to heat the pipe and solder cup of fitting until solder melts on the joint of pipe and fittings.
- Step 5: Remove flame and feed solder into the joint at two points until a ring of solder appears at the end of the fitting. The correct amount of solder of using is approximately equal to 1 1/2” the outer diameter of the fittings. The same apply to 3/4" (20mm) solder for 1/2” fittings and etc.
- Step 6: Remove excess solder with a small brush or wiping cloth while the solder is plastic.
Copper Fittings Catalogue
| Nibco Copper Fittings.pdf |
