SKUs available on this product page

22WB-4-316, 22WB-2.5-316, 22WB-3-316, 22WB-.75-316, 22WB-2-316, 22WB-1-316, 22WB-.50-316, 22WB-1.5-316,

Female NPT Butt-Weld Adapter (22WB)

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Butt-Weld to female NPT threaded tube adapter for stainless steel process lines

The female National Pipe Thread (NPT) Tube Weld Adapter is available exclusively in 316L stainless steel alloy. Stainless steel material is resistant to corrosion and can withstand high temperatures. Available in 1/2" up to 4" Outside Diameter (OD).

Additional information

Line Drawings

SKUDescriptionLine Drawing
22WB-.50-316

1/2″ Female NPT x Tube Weld Adapter, 316

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22WB-.75-316

3/4″ Female NPT x Tube Weld Adapter, 316

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22WB-1-316

1″ Female NPT x Tube Weld Adapter, 316

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22WB-1.5-316

1-1/2″ Female NPT x Weld OD Adapter, 316

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22WB-2-316

2″ Female NPT x Tube Weld Adapter, 316

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22WB-2.5-316

2 1/2″ Female NPT x Tube Weld Adapter, 316

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22WB-3-316

3″ Female NPT x Tube Weld Adapter, 316

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22WB-4-316

4″ Female NPT x Tube Weld Adapter, 316

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    Hey, i would like to purchase a few of these 1/2" NPT Female x Tube Weld Adapter fittings. Could you please provide me the max pressure rating of this part? Thank you>
  1. Q Hey, i would like to purchase a few of these 1/2" NPT Female x Tube Weld Adapter fittings. Could ...... Read more
    A Please consult the following graph for NPT pressure ratings.
  2. What's the difference between NPT & NPS threads
  3. Q What's the difference between NPT & NPS threads
    A
    NPS = National Pipe Straight
    NPT = National Pipe Thread
    Both NPT and NPS have the same thread angle, shape, and pitch (threads per inch). However, NPT threads are tapered and NPS threads are straight (parallel). Both threads have a 60° included angle and have flat peaks and valleys.
    Tapered Pipe Thread is commonly found on ends of pipe, nipples and fittings (i.e. couplings, elbows, tees, etc.). Note: Sharply angled threads are very critical to joint being tight with no leaks. Thread sealant or tape is typically required to complete the seal. Straight Pipe Threads need a gasket or O-ring to create a seal.
    While NPT and NPS threads will engage, they do not seal properly with each other.