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16W Weld Cap

The 16W Weld Cap is a high-quality stainless steel butt weld pipe fitting designed to provide a permanent, leak-proof seal for the end of sanitary piping systems. Manufactured from premium 304 or 316L stainless steel, this weld cap delivers exceptional corrosion resistance, durability, and hygiene– making it the ideal choice for food processing, dairy, beverage, pharmaceutical, cosmetic, and industrial fluid transfer applications.
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Key Features

  • Butt Weld Connection – Provides a permanent, flush, and crevice-free joint that eliminates dead zones and reduces contamination risk

  • Premium Stainless Steel Construction – Available in 304 and 316L stainless steel alloys for superior strength and corrosion resistance

  • Unpolished ID / 32RA OD Finish – Standard finish with smooth exterior surface; polished options available upon request

  • Wide Size Range – Available from 1/2" to 8" tube OD to accommodate diverse piping system requirements

  • 3A Certified – Complies with 3A sanitary standards for food, dairy, and beverage processing equipment

  • CE Certified – Meets European health, safety, and environmental protection standards

  • ISO 9001 Certified Manufacturing – Produced under a rigorous quality management system

  • Material Test Reports Supplied – Full traceability and documentation provided with every shipment

Key Advantages

  • Permanent Leak-Proof Seal – Butt weld connection creates a 100% leak-proof seal that outperforms threaded or clamped connections in critical applications

  • Superior Hygiene – Flush, crevice-free design prevents bacteria growth and residue buildup, making it ideal for sanitary and aseptic processing

  • Exceptional Corrosion Resistance – 304/316L stainless steel construction withstands harsh chemicals, high temperatures, and corrosive environments

  • Long Service Life – Built to last with minimal maintenance requirements, reducing total cost of ownership

  • Full Traceability – Each cap comes with material test reports and complete documentation for quality assurance

  • Versatile Applications – Suitable for food, beverage, dairy, pharmaceutical, cosmetic, chemical, and industrial piping systems

Working Principle

The 16W Weld Cap functions as a terminal end closure for sanitary piping systems-. It is installed by butt welding the cap directly to the end of a pipe or tube, creating a permanent, full-penetration weld joint. This welding process fuses the cap and pipe into a single, continuous structure with a flush interior surface that eliminates gaps, crevices, and potential contamination points.

Once welded in place, the cap completely seals the pipe end, preventing:

  • Fluid or gas leakage

  • Entry of contaminants, dust, or debris

  • Pressure loss in the piping system

The result is a permanent, hygienic, and pressure-tight seal that maintains the integrity of the entire piping system throughout its service life.

Why Choose Us

  • 3A, CE & ISO 9001 Certified – Our 16W Weld Cap meets the highest international quality and safety standards, giving you complete confidence in every product

  • Premium Materials – We use only high-grade 304 and 316L stainless steel with full material traceability

  • Rigorous Quality Control – Every weld cap undergoes strict inspection and testing to ensure dimensional accuracy and performance reliability

  • Complete Documentation – We provide material test reports, certification documents, and full traceability records with every order

  • Expert Manufacturing – With years of experience in sanitary fitting production, we deliver precision-engineered products that meet the most demanding specifications

  • Global Compliance – Our products are manufactured in compliance with ASME, DIN, and ISO standards

16W Butt Weld Cap – 304/316L Sanitary Weld End Cap Dimension | CE Certified

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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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The company is famous for the quality of the world, to serve the trust of customers for the purpose. The goal is to do fine, do fine, do gold. 
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