Stainless Steel Butt Weld Caps
A stainless butt-weld cap is a dished AISI 304 cap that permanently closes the end of a stainless pipe or manifold by TIG welding.
It is used on stainless manifold ends, the ends of food and chemical lines and in the fabrication of small stainless vessels. It is supplied in 13 sizes from 1/2″ to 10″.
Main Applications
- Stainless manifold ends
- Ends of food and chemical lines
- Small stainless vessel and tank fabrication
- Dead legs in CIP lines
- Filter and strainer bodies
- Line ends in marine environments
Technical Data
| Fitting type | Butt-weld dished cap |
|---|---|
| Material | AISI 304 (product range) |
| Sizes | 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″, 5″, 6″, 8″, 10″ (product range) |
| Connection | TIG welding |
| Wall thickness | Depending on model |
| Removable closure | With a stainless blind flange |
| Surface | Uncoated stainless |
| Working pressure | Depending on wall thickness and material |
Material Options
| Part | AISI 304 stainless | AISI 316 stainless | Carbon steel |
|---|---|---|---|
| Body | AISI 304 stainless steel | AISI 316 stainless steel (selected sizes) | Carbon steel, grade depending on model |
| Surface | Uncoated stainless | Uncoated stainless | Black or oiled |
| Wall thickness | Depending on model | Depending on model | Standard, SCH40, SCH80 |
| Welding | TIG / stainless electrode | TIG / stainless electrode | Stick or TIG/MIG |
| Suitable media | Food, drinking water, mild chemicals | Chloride-containing water, seawater, aggressive chemicals | Heating water, steam, fire water |
Which material? In food lines capped dead legs create areas that are hard to reach during cleaning; where possible keep the dead leg short or use a removable blind flange.
Advantages
Permanent Closure
- One piece with the line by welding
Dished Form
- Pressure resistant
13 Sizes
- From 1/2″ to 10″
Suited to Vessel Fabrication
- Small tanks and manifolds
Construction and Design Features
- Dished stainless cap
- Weld end suited to TIG welding
- Size matching the pipe outside diameter
- Uncoated surface
Send the cap size and quantity; we will confirm stainless butt-weld caps from stock.
How to Choose?
- Measure the pipe sizeDetermine the outside diameter of the stainless pipe to close.
- Assess permanencePrefer a blind flange on ends to be opened.
- Shorten the dead legMinimise capped end lengths in food lines.
- Match the gradeChoose a cap of the same grade as the pipe.
Complementary Products
Why ORFA?
Other Welded Stainless Steel Fittings
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Stainless steel eccentric reducers change pipe size on welded stainless lines while keeping one side flat.
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Stainless Steel Flanges
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Stainless Steel Butt Weld Reducing Tees
Stainless steel butt weld reducing tees are used to take a smaller branch off the main run on stainless steel lines.
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Stainless Steel Weld-End Conical Unions
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Stainless Steel Butt Weld Crosses
Stainless steel butt weld crosses split flow in four directions on welded stainless steel lines.
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Stainless Steel Butt Weld Tees
Stainless steel butt weld tees split flow in three directions on welded stainless steel lines.
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Stainless Steel Concentric Reducers
Stainless steel concentric reducers change pipe size on welded stainless lines along the same centre line.
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Stainless Steel Butt Weld Elbows
Stainless steel butt weld elbows are fittings used to change direction on welded stainless steel lines.
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Stainless Steel Single-Side Threaded Nipples
Stainless steel single-side threaded nipples are transition pieces with one threaded end and one plain end for welding.
Details →Get a quote for your project
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