Premier Manufacturer of Sanitary Fittings, Valves, Pumps & More
As a trusted sanitary fittings manufacturer and stainless steel pipe fittings supplier, we believe in making things simple for our customers, and we do this by providing superior service.

1 Product Breadth
We carry a vast inventory of 10,000+ different catalog and specialty items. Whether you seek fittings, valves, or accessories, you'll find exactly what you need, with custom products available.

2 Product Depth
We invest strategically in our inventory, ensuring you get what you need, when you need it, with high fill rates and same-day shipping on most stocked parts.

3 Custom Capabilities
No custom job is too big or too small for Steel & O’Brien. Simply send us a sketch with your order, and we’ll turn it into an engineering drawing within 24 hours.

4 Expertise & Experience
Our seasoned sales and customer service team members have unparalleled industry knowledge and expertise. We make even the toughest questions easy to understand.
Complete Selection of Sanitary Products
Steel & O’Brien manufactures sanitary stainless-steel fittings, valves, pumps, and accessories. With fast, reliable shipping and an extensive product selection, we have the capacity and expertise to be your one-stop sanitary solutions partner. Explore our product range designed to meet the needs of various sanitary process industries.
In-House Custom Capabilities
In addition to providing a catalog of products, Steel & O’Brien is also a custom stainless steel fittings supplier. We create customized stainless steel sanitary and BPE fittings, valves, pump parts, and other products that exceed industry expectations.
DCC: The Future of Cooling
Data Center Cooling (DCC) is rapidly becoming the go-to method for managing the heat of today’s high-powered AI chips in hyperscale and colocation data centers. Experience effective cooling now for optimal performance and temperature control.

Steel & O’Brien Is Your Go-To:
- Sanitary Fitting Manufacturer
- Sanitary Valves Manufacturer
- Sanitary Pump Manufacturer
Founded in 1990, Steel & O’Brien is an American sanitary stainless steel fittings manufacturer for the food processing, pharmaceutical, and various other industries. Based in Arcade, NY, Steel & O’Brien specializes in high-quality, standard, and custom machined/fabricated fittings and assemblies, offering fast turnaround to meet evolving production needs.
With over 35 years in business, Steel & O’Brien has grown into a leading sanitary pump, valve, and stainless steel manufacturer. Since joining Flow Control Holdings (FCH) in 2018, the company has expanded its footprint with a West Coast Fulfillment Center in Fresno, CA, and the expansion and launch of Steel & O’Brien Canada in Mississauga, ON. Over the years, we’ve broadened our product lines, earned new certifications, and strengthened our role as part of a larger global group.

Simplifying Sanitary Through Superior Service™














