Brass Fittings
Brass fittings are threaded connection parts made of hot-forged or bar-machined brass, used in water, heating and compressed air lines. Thanks to its easy machinability and natural resistance to water, brass is the most widely used connection material in small and medium-bore installations.
Besides standard fittings such as elbows, tees, sockets, nipples and reducers, this group includes radiator unions, PEX connection fittings, hose tails, compression fittings and quick couplings. Threaded fittings are supplied in sizes from 1/8″ to 4″.
Main Applications
- Domestic and hot water installations
- Central heating and radiator connections
- Compressed air and pneumatic lines
- Hose, irrigation and washing connections
- Instrument, lubrication and small-bore control lines (compression)
- Water tank and vessel connections
- Machine and equipment connections
Technical Data
| Material | Brass CW617N (CuZn40Pb2) (similar manufacturer sheet; depending on model) |
|---|---|
| Thread | ISO 228-1 G parallel thread; ISO 7-1 taper depending on model |
| Threaded fitting sizes | 1/8″ – 4″ (product range) |
| Reducers | 39 sizes, up to 4″ × 3″ (product range) |
| Hose tails and unions | 6 mm – 100 mm hose end (product range) |
| Compression fittings | 6 mm – 16 mm tube (product range) |
| Radiator unions | Straight and angle type, 3/8″ – 2″, nickel-plated option (product range) |
| Quick couplings | 1/8″ – 3/4″ connection, 6–19 mm hose end (product range) |
| Nominal pressure | PN16 (CW617N threaded tee, similar manufacturer sheet) |
| Max. working temperature | 160 °C (similar manufacturer sheet) |
| Surface | Natural brass; nickel-plated option for radiator unions |
| Fitting types | Elbow, 45° elbow, street elbow, tee, cross, socket, reducing socket, nipple, reducing nipple, reducer, reverse bush, plug, taper union, tank connector, hose tail and union, compression, radiator, PEX, quick coupling |
Material Options
| Part | Brass | Nickel-plated brass | Stainless (AISI 304) |
|---|---|---|---|
| Body | Brass CW617N, hot-forged or bar (depending on model) | Brass body (depending on model) | AISI 304 stainless steel |
| Surface | Natural brass | Nickel plating | Uncoated stainless |
| Thread | ISO 228-1 G / ISO 7-1 (depending on model) | ISO 228-1 G (depending on model) | ISO 7-1 R / Rp |
| Pressure rating | PN16, max. 160 °C (similar manufacturer sheet) | Depending on model | 20 bar −20…+38 °C (ISO 4144) |
| Suitable media | Domestic water, heating water, compressed air | Visible radiator and fixture connections | Food, chemicals, seawater |
Which material? In water and heating installations brass collects less scale and rust than galvanized and black fittings. In chloride or ammonia environments stainless fittings should be preferred to brass.
Advantages
Resistance to Water
- Brass does not rust; no rust builds up inside
Precise Threads
- Clean machined threads seal easily
Widest Product Family
- From threaded fittings to hose, compression and quick couplings
Practical in Small Sizes
- Sizes from 1/8″ and 6 mm for instrument and control lines
Suited to Visible Installation
- A clean look with nickel-plated radiator unions
Construction and Design Features
- Brass body hot-forged or machined from bar
- Bodies with hexagonal wrench surfaces (depending on model)
- Threaded, hose end, compression and quick-connect options
- Nickel plating and nut connection on radiator unions (depending on model)
- Screwed installation without welding
Send the fitting type, thread or hose size and quantity; we will confirm suitable brass fittings from stock.
How to Choose?
- Choose the connection typeChoose standard fittings for threaded pipe, hose tails for hoses and compression fittings for small tubes.
- Check the mediumUse brass for water, heating and air; stainless for chloride and aggressive media.
- Confirm the thread typeDetermine whether the connected equipment has a parallel (G) or taper (R) thread.
- Compare pressure and temperatureCompare the line values with the PN16 and 160 °C limits.
Complementary Products
Why ORFA?
Types of Brass Fittings
Straight Radiator Unions
Straight radiator unions are brass fittings that connect a radiator to the pipework in a straight line and can be taken apart.
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Angle Radiator Unions
Angle radiator unions are brass fittings that connect a radiator to the pipework at a right angle and can be taken apart.
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PEX Fittings
PEX fittings are brass fittings used to connect PEX pipes to the installation or to fixtures.
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Quick Couplings
Quick couplings let hoses and lines be connected and disconnected quickly without tools.
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Brass Hose Fittings
Brass hose fittings are used to connect a hose to a threaded installation.
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Brass 45° Elbows
Brass 45° elbows are brass fittings used to change direction by 45 degrees on threaded installations.
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Brass Tank Connectors
Brass tank connectors are used to take a sealed pipe outlet through the wall of a tank.
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Brass Elbows
Brass elbows are brass fittings used to change direction by 90 degrees on threaded installations.
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Brass Hose Connectors
Brass hose connectors are used to join two hoses or to join a hose to a line.
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Brass Conical Unions
Brass conical unions provide a tight, removable connection on threaded pipes through a conical seat.
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Brass Plugs and Caps
Brass plugs and caps are used to close the ends of threaded pipes and fittings.
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Brass Crosses
Brass crosses are brass fittings that split flow in four directions on threaded installations.
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Brass Street Elbows
Brass street elbows are brass elbows with one female and one male threaded end.
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Brass Reducing Sockets
Brass reducing sockets are female threaded brass fittings that join two pipes of different sizes.
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Brass Sockets
Brass sockets are female threaded brass fittings that join two pipes in a straight line.
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Brass Nipples
Brass nipples are brass pieces with male threads on both ends that connect two female threaded fittings.
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Brass Reducing Nipples
Brass reducing nipples are brass pieces with male threads of different sizes on each end, used to change pipe size.
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Brass Reducing Bushes
Brass reducing bushes are brass fittings with male and female threads used to change pipe size.
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Brass Tees
Brass tees are brass fittings that split flow in three directions on threaded installations.
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Brass Hex Nipples
Brass hex nipples are brass fittings with a hexagon centre, used to join two threaded parts.
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Brass Compression Fittings
Brass compression fittings join copper and similar pipes with a compression ring, without welding or threading.
Details →Other Threaded Fittings
Threaded Black Fittings
Threaded black fittings are cast fittings such as elbows, tees, sockets and reducers that provide threaded joints in black steel pipelines.
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Galvanized Fittings
Galvanized fittings are zinc coated threaded fittings that resist corrosion, used in water and fire protection installations.
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Stainless Steel Threaded Fittings
Stainless steel threaded fittings provide corrosion resistant threaded joints in food, chemical and process lines.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.