Kerkau Manufacturing

Family values since 1983

Since 1983, family values have been a way of business for Kerkau Manufacturing.  After being acquired by the Baldauf family, these values have led Kerkau to become one of the premier manufactures of pipe flanges and precision machined products in the United States. 

For over 30 years, Kerkau has been committed to supplying the highest quality pipe flanges along with the best customer service in the industry. 


Kerkau Manufacturing was established in 1951 and purchased by the Baldauf family in 1983. At the time, the business consisted of a 125,000 sq. ft. production facility and 125 employees.

During the early years, Kerkau was primarily a production machine shop, doing high volume jobs for the automotive and petrochemical industries. Forgings and castings were supplied from the customer and the finish machining performed by Kerkau.

As Kerkau began to grow, the company started purchasing A105 carbon steel raw forgings and began machining, marketing and selling the highest quality pipe flanges in the market under the Kerkau name. In the early 90's, after expanding the A105 product line to include up to 42'' NPS, Kerkau then added stainless 304/L and 316/L to the grades of material offered.  With the Kerkau brand becoming more popular in the industry, in 2004, Kerkau began offering Long Weld Neck flange and was able to expand and build a 80,000 sq. ft sales office and finished goods warehouse.  In 2012, Kerkau again expanded the product line to include A350 LF2 low temperature carbon steel. 

Since its inception, Kerkau strives to keep these three core values:

  1. Exceptional Customer Service
  2. Quality Products
  3. Continual Improvement