Single-Side Threaded Nipples
A single-end nipple is a black steel pipe piece with one male-threaded end and one plain (weld) end. It provides the transition from a welded steel line to a threaded valve or device.
It is used to create threaded outlets on manifolds and tanks, connect threaded valves to welded lines and for measuring points. It is supplied in 8 sizes from 1/2″ to 3″ and as a 4″ pipe nipple.
Main Applications
- Threaded outlets on welded manifolds
- Threaded ports on tanks and boilers
- Threaded valve connections on welded lines
- Pressure gauge and thermometer points
- Drain and air release ports
- Pump and device connections
Technical Data
| Fitting type | Single-end nipple: one male-threaded end, one weld end |
|---|---|
| Material | Black steel pipe (depending on model) |
| Sizes | 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″ (product range) |
| Pipe nipple | 4″ (product range) |
| Thread | Taper pipe thread (depending on model) |
| Weld end | Plain, suited to butt or fillet welding |
| Length | Depending on model |
| Working pressure | Depending on pipe wall thickness |
Material Options
| Part | Carbon steel (standard wall) | Carbon steel (SCH40) | Stainless (AISI 304) |
|---|---|---|---|
| Body | Carbon steel, grade depending on model | Carbon steel, grade depending on model | AISI 304 stainless steel |
| Wall thickness | Pipe series standard wall (depending on model) | SCH40 | Depending on model |
| Surface | Black or oiled (depending on model) | Black or oiled (depending on model) | Uncoated stainless |
| Welding | Stick or TIG/MIG | Stick or TIG/MIG | Stainless electrode / TIG |
| Suitable media | Heating water, fire water, air | Steam, high-pressure lines | Food, chemicals, seawater |
Which material? A single-end nipple is used on welded black steel lines; the sealing material is chosen according to the valve or device connected on the threaded side.
Advantages
Weld-to-Thread Transition
- Threaded equipment connects to a welded line
Practical Outlet
- Threaded ports on manifolds and tanks
8 Sizes
- From 1/2″ to 3″
Simple Installation
- One end welded, one end screwed
Construction and Design Features
- Male thread on one end
- Plain weld end on the other
- Black steel pipe body
- Length depending on model
Send the nipple size, length and quantity; we will confirm the suitable single-end nipple from stock.
How to Choose?
- Determine the sizeMeasure the thread size of the valve or device to connect.
- Check the weld sideIdentify the line or vessel surface to be welded.
- Choose the lengthAssess the distance needed for the valve or device.
- Plan the sealingUse a suitable tape or sealant on the threaded side.
Complementary Products
Why ORFA?
Other Welded Carbon Steel Fittings
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Carbon Steel Butt Weld Tees
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Carbon Steel Concentric Reducers
Carbon steel concentric reducers change pipe size on welded lines along the same centre line.
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Butt Weld Reducing Tees
Butt weld reducing tees are used to take a smaller branch off the main run on welded steel lines.
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Butt Weld Elbows
Butt weld elbows are formed fittings used to change direction on welded steel pipelines.
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Butt Weld Crosses
Butt weld crosses split flow in four directions on welded steel pipelines.
Details →Get a quote for your project
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