Tru-Flo specializes in the manufacturing and development of stainless steel and carbon steel valves used world-wide in the Petroleum, Chemical, Food, Beverage, Automotive, Pharmaceutical, and Pulp & Paper Industries.

From start to finish, Tru-Flo Valves are manufactured with a focus on Quality. Both our foundry and factory are ISO 9002 Certified and employ the latest techniques in technology and precision machining to manufacture all of our quality valves. We invite you to learn more about products including Sanitary Ball Valves, Industrial Ball Valves, Electric and Pneumatic Actuators, and Automation Accessories. Tru-Flo quality, stainless steel valves can be provided with electric or pneumatic actuators with prompt delivery and guaranteed customer satisfaction. We have years of valve engineering expertise available to help satisfy and support OEM requirements.
Built to a Higher Standard
Precision MachiningPrecision Machining All Tru-Flo valves are supplied with a precision-machined solid stainless steel ball. Balls are polished to a mirror finish to provide lower operating torque, longer life cycle, higher performance and bubble tight shut off. All balls are provided in 316L material for long life cycles and durability. We employ the latest techniques and technology in our ball manufacturing processes.
Intelligent Stem DesignIntelligent Stem Design Tru-Flo valves offer a heavy duty, 316 stainless stem design. All stems are internal entry and simplify lever mounting and flow direction. All stems are of an anti-blowout design to ensure maximum safety. Stem design meets ANSI B16.34 specifications and material meets ASTM A276. Pyramidal stem and seal along with double Viton (R) o-ring seal effectively blocks any leak path from forming during rotation.
CastingsCastings of a Higher Calibre The highest quality investment casting process is used for both stainless steel and carbon steel valves for all designs from sizes ¼” through 4”. Body wall thickness is designed in strict adherence to ANSI B17.34 and all ASTM standards. Each casting is marked with a foundry heat code number which allows for full traceability. All valves are 100% tested and inspected prior to shipment and material specifications can be provided upon request.
Standards Standards and Features for Global Market All Tru-Flo valves are manufactured in strict adherence to international standards and specifications: ANSI/ASME, API, NACE, BS5351 and ISO.
News and Events

QSM has moved to their brand new facility!

We have moved into our new facility at 427 McNeely Rd. Piedmont, SC 29673

QSM breaks ground on new facility

The QSM team has been hard at work!

Food Safety Summit – Rosemont, IL – May 10-12, 2016

The Summit provides an educational program as well as exhibits and networking events. For additional info visit

International Powder & Bulk Solids Conference & Expo – May 3-5, 2016

Visit for additional information.

Valve Basics Seminar & Exhibit – April 19-21, 2016

The Valve Manufacturers Asscociation of America is hosting a valve basics seminar and exhibit in Rosemont, IL April 19-21, 2016. For more info visit:

25th Anniversary ISPE Product Show – October 5, 2016

Come visit our booth at the 25th Anniversary ISPE Product Show at Gillette Stadium in Foxborough, MA October 5, 2016! More details will follow.

Improved BFY Notch Plate

QSM recently improved the design of our Tru-Flo BFY-316L series butterfly valve notch plate. Click below for more information! Improved BFY Notch Plate