Single schedule concentric swage nipples

What is a single concentric swage nipple?

A single concentric swage nipple is a single, solid reducer used to transition from a larger to a smaller NPS while maintaining a common centerline. Compared to eccentric types, concentric geometry preserves axial symmetry, helping reduce off-axis vortices.

When to use a single conc swage nipple

• Vertical lines and centered layouts where symmetry is preferred.
• Connections to equipment where an aligned, centered profile is beneficial.
• For horizontal lines with gas or liquids prone to pooling, consider an eccentric swage nipple.

Standards & compliance

Single conc swage nipples are manufactured in accordance with the applicable Standard Practice MSS-SP-95 and ASME B16.11, and can be supplied with bevel, plain or threaded ends.

Materials

• Carbon steel, stainless steel, and alloy steels for elevated pressure/temperature or corrosive service.
• Optional coatings/finishes and sour-service selections available on request.

Pressure classes & schedules

Our combinations are:

• BBE 
• BE X TE 
• BE X PE 
• TBE 
• TE X PE 
• TE X BE 
• PBE 
• PE X BE 
• PE X TE (TOE)

Why choose a single concentric swage nipple

• Single-piece construction for robust integrity and compact overall length.
• Concentric geometry keeps the centerline aligned—ideal for vertical runs and equipment connections where symmetrical flow is preferred.
• Available with mixed end types (e.g., NPT × BW) to simplify field installation.