QSM Tru-Flo ball valves are built from investment-cast 316L stainless steel with full-port flow paths, precision polishing, and long-life PTFE seats. Their rugged construction provides excellent corrosion resistance, tight shutoff, and low pressure drop — making them dependable for food, beverage, dairy, pharmaceutical, and industrial service.

Engineered Ball Valve Performance
QSM Tru-Flo ball valves deliver dependable, full-port flow control with a rugged design made for sanitary and industrial processing. Their polished flow paths, durable construction, and low-pressure drop make them ideal for applications requiring reliable shutoff and smooth, unobstructed flow.
Williams-Carver supplies manual and fully automated QSM Tru-Flo assemblies with actuator packages, control accessories, and custom mounting options—ensuring long service life and dependable performance across food, beverage, dairy, chemical, and utility systems.
Browse QSM Tru-Flo Ball Valves

EA-33NF-SN | Ball Valves
QSM Tru-Flo EA-33NF-SN sanitary ball valves feature a full-port design, precision-machined 316L stainless-steel body, and polished internal surfaces for smooth, unrestricted flow. Their live-loaded stem packing and cavity-filled seat options help reduce product entrapment and improve cleanability in hygienic applications. With ISO 5211 direct-mount capability, these valves are ideal for manual or automated service across food, beverage, dairy, and pharmaceutical processing.

EA-36-150 | 3-Way Ball Valves
The EA-36-150 Series 3-way ball valves provide versatile flow direction control with L-port or T-port ball configurations. Constructed from 316L stainless steel with sanitary clamp or weld end connections, they support reliable diverting, mixing, or bypass functions in hygienic systems. Their full-port design maintains low pressure drop, while the ISO-mount pad allows easy integration with pneumatic or electric actuators for automated flow routing.

EA-407-SN | 3-Way & 4-Way Valves
QSM’s EA-407-SN Series offers multi-port ball valve solutions engineered for complex flow paths requiring multiple inlets or outlets. Available in 3-way and 4-way configurations, these stainless-steel valves provide high-cycle durability, precise machining, and smooth operation for demanding sanitary or industrial processes. With multiple seat and flow-pattern options, they deliver flexible system design, reduced piping, and reliable control in compact layouts.

EA-3308-SN | 3-Way Valves
The EA-3308-SN Series 3-way ball valves are designed for hygienic processing systems that require dependable diverting or mixing capabilities. Manufactured from corrosion-resistant 316L stainless steel, these valves offer a robust tri-clamp design, high-polish wetted surfaces, and a precision ball/seat interface for consistent sealing. Their compact body and ISO actuator mount make them an excellent choice for automated or manual sanitary flow management.
Frequently Asked Questions
Yes. QSM Tru-Flo ball valves feature ISO-5211 direct-mount automation pads that eliminate the need for brackets or couplers. They integrate easily with pneumatic or electric actuators, position indicators, limit switches, and control packages — allowing seamless automation for batching, CIP routing, or process monitoring.
Ball valves are ideal when you need full-bore flow, tight bubble-tight shutoff, or need to handle higher pressures or viscous fluids. Compared to butterfly valves, QSM Tru-Flo ball valves provide zero-restriction flow and superior sealing, making them a better choice for critical product lines rather than general utility service.


