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Technical Features and Specifications
Swage nipples are defined by their end configurations and reduction ratio.
| Feature | Detail |
|---|---|
| Ends | PBE (Plain Both Ends), TBE (Threaded Both Ends), BBE (Beveled Both Ends). |
| Standard | MSS SP-95. |
| Materials | A105, A350 LF2, F304L, F316L. |
A "Concentric" swage aligns the centerlines of both pipes, ideal for vertical lines. An "Eccentric" swage keeps one side flat, preventing air pockets in horizontal liquid lines or water traps in steam lines. The forging process ensures that the internal taper is smooth and uniform, preventing localized erosion at the point of diameter change.
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Buying Tips for Flow Reducers
- Wall Thickness (Schedule): You must specify the schedule for both ends (e.g., Sch 80 x Sch 40) to ensure the internal bore aligns with your piping.
- End Combinations: Be specific about end types—many systems require a beveled end for welding and a threaded end for an instrument (BSE - Beveled Small End).
- Overall Length: Ensure the swage nipple length meets your clearance requirements for insulation or tool access.
Advantages of Forged Swages
| Advantage | Operational Benefit |
|---|---|
| Pressure Integrity | Handles the high-stress "reduction zone" better than pipe-reducers. |
| Versatility | Can be customized with any combination of threaded and beveled ends. |
| Durability | Resists the "thinning" effect often seen in cold-formed reducers. |
Primary Applications
| Industry | Usage Context |
|---|---|
| Chemical Processing | Connecting small instrument lines to large process headers. |
| Steam Systems | Driplegs and condensate return piping transitions. |
| Oilfield Manifolds | Adapting different valve sizes within a compact skid. |
- Q: What is the difference between a Reducer and a Swage Nipple?
- A: Reducers are typically used for larger butt-weld piping (ASME B16.9), while Swage Nipples are used for smaller-bore piping (MSS SP-95) where threaded or socket-weld ends are required.
