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22WB Weld X Female Npt Adapter

The 22WB Weld X Female NPT Adapter is a premium sanitary stainless steel fitting designed to create a seamless transition between butt weld piping systems and female NPT (National Pipe Taper) threaded connections. Constructed from high-grade 316L stainless steel with a 32Ra machine finish, this adapter delivers exceptional durability, corrosion resistance, and hygienic performance for demanding industrial applications
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  • Kasin

Key Features

  • Premium 316L Stainless Steel Construction – Offers outstanding resistance to corrosion, oxidation, and chemical attack, making it ideal for food, dairy, beverage, pharmaceutical, and cosmetic processing environments.

  • 32Ra Mechanical Polished Finish – Both interior and exterior surfaces are precision machine-finished to 32Ra, ensuring a smooth, bacteria-resistant surface that minimizes product buildup and facilitates thorough CIP cleaning.

  • Butt Weld x Female NPT Connection – The weld end provides a permanent, high-integrity joint for fixed installations, while the female NPT threaded end enables easy connection to standard threaded components.

  • Tapered NPT Thread Design – NPT threads feature a tapered design that pulls tighter as it is threaded, creating a fluid-tight seal without the need for excessive sealant.

  • Full Material TraceabilityMaterial Test Reports (MTRs) are available upon request, ensuring complete quality assurance and compliance.

  • Industry Certifications3-A Certified and CRN Certified, meeting the highest standards for hygienic sanitary fittings.

  • Wide Size Range – Available from 1/2" to 6" tube OD to accommodate diverse system requirements.

  • Passivation Available – Passivation treatment can be provided upon special request for enhanced corrosion protection.

How It Works

The 22WB Adapter functions as a transition fitting that bridges two different connection methodologies within a piping system.

  1. Weld End Connection – The butt weld end is permanently welded to the tubing of the process line. This creates a continuous, seamless joint that eliminates potential leak points and provides superior mechanical strength.

  2. NPT Threaded Connection – The female NPT end accepts standard male NPT threaded components. As the male thread is inserted and tightened, the tapered thread geometry causes the threads to compress against each other, forming a pressure-tight mechanical seal.

  3. Integrated System – Once both ends are connected, the adapter enables fluid or gas to flow seamlessly between the welded tubing section and the threaded component section, maintaining system integrity and flow efficiency.

This design is particularly valuable in hygienic sanitary applications where the combination of a permanent welded joint (for reliability) and a threaded connection (for flexibility) is required.

Why Choose us?

  • Superior Material Quality – Made from 316L stainless steel, the low-carbon variant offers enhanced weldability and superior corrosion resistance compared to 304 stainless steel.

  • Hygienic Design – The 32Ra polished finish reduces bacterial adhesion and residue buildup, critical for food, dairy, beverage, and pharmaceutical applications.

  • Certified Quality3-A Certified and CRN Certified products ensure compliance with rigorous industry standards for sanitary fittings.

  • Complete TraceabilityMaterial Test Reports (MTRs) available upon request for full quality documentation.

  • Industry Compatibility – Interchangeable with major brands including Dixon (B22WB), Alfa Laval, Wayland (W22WB), and Sanitary Solutions (SS22WB).

  • Permanent, Reliable Installation – The butt weld connection creates a permanent joint that outperforms mechanical fittings in high-vibration and high-temperature applications.

  • Versatile Applications – Suitable for food processing, dairy, beverage, personal care, cosmetics, pharmaceutical, and chemical industries

Connection
Butt Weld x Female NPT (FNPT)
Temperature
250° F except hose fittings are unrated
Material
304/316L stainless steel tubes that meets ASTM A269 or ASTM A270
Certification
Material Certificate with Traceable Lot Number and Test Report
Specifications Met
3A
Finish
No. 7- ID & OD

Female NPT thread close-up on 22WB stainless steel adapter

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CONTACT INFORMATION

If you have any questions or need help, feel free to contact with our team. We are available 24/7 by fax, 
e-mail or by phone. 
   valve@wzststeel.com
   +86-15858536788/+-86-577-86896059
  Binhai Industry Zone, Wenzhou, Zhejiang, China

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