SIP Industries

SIP Industries / Serampore has been a manufacturer of quality castings since 1960. Products include Ductile Iron waterworks Fittings and Accessories, Ductile Iron Flanges, Joint Restraints, Municipal Castings. Joint Restraints and Municipal Castings available MADE IN USA!!

SIGMA Corporation

SIGMA Corporation offers a wide range of waterworks, fire protection, and OEM products for customers at home and abroad. SIGMA’s innovative quality and supply chain processes have made us an industry leader, and we continue to develop new products and services, meeting the changing needs of our valued customers every...

Tyler Union

Tyler Union – Quality Waterworks Products.

Star Pipe Products

Star Pipe Products.

U.V. International, LLC

A Leader in Waterworks Flanges, Fittings and More Located in Morristown, New Jersey, U.V. International has been manufacturing and distributing flanges, fittings and engineered castings to the North American agriculture, construction, lighting and water/sewage industries for over 37 years. U.V. International is a full-service manufacturer and distributor with 9 distribution...


Reliable Protection through Innovative Coatings.  A quality coating job takes more than quality coatings. It takes a quality coating system. Starting with a commitment to doing what’s right for the job. At Induron we invest ourselves in your success, your satisfaction and your reputation. Family-owned Induron Coatings manufacturers a variety...

Electrosteel USA

Pure ore is the ideal material for producing ductile iron pipe and fittings. That’s why it’s the primary ingredient in Electrosteel’s AWWA products. But long before anything is cast, we take time to innovate the products our customers need. Then we take the necessary steps to insure every product represents...

C.I. Thornburg

The C.I. Thornburg Co., Inc., is a full service solution provider for the water and wastewater industries. Our ANSI/AWWA and NSF-certified fabrication shop in Huntington, WV offers all configurations of flanged and fabricated ductile iron pipe as well as carbon and stainless steel pipe. C.I. Thornburg also offers a full...

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Thank you for visiting the official site of the National Association of Pipe Fabricators. Inside you will find information about our organization, along with a listing of our members, our industry standards and links to industry sites. If you have a need for further information, please contact us and we will be happy to help you.

- NAPF Board of Directors
- October 2015 Board Meeting

- 2016 NAPF Annual Meeting in Palm Springs, CA - February 17-20 - AIS Final Guidance 3-20-14 (PDF)