Process Valves

Engineered for Performance. Designed for Precision. Trusted Across Industries.

Since 1921, Strahman Group has led the way in process valve innovation, beginning with the development of the first free-flowing, non-clogging piston valve for the U.S. dairy industry. Today, our high-performance process valves serve critical applications in oil & gas, chemical, petrochemical, food & beverage, pulp & paper, and pharmaceutical sectors worldwide. Let our valve specialists help you identify or engineer the perfect process valve solution for your facility. Request a quote or contact us today.

Piston Valves (Sampling & Injection)

Strahman’s piston-style process valves are engineered for clean, efficient, and safe sampling or media injection without clogging or contamination. The Soft Seated and Metal Seated Sample Valves are SIL2 Certified, ensuring safety and reliability.

• Soft-Seated SV Series: Dead-space-free, non-clogging sample valve available with NPT, flange, or insert connections.
• Metal-Seated MS Series: Built for high-pressure (ANSI 600/1500) and high-temperature (up to 1000°F) environments.

• Quick Sample (QS) Series: Spring-loaded plunger with quick quarter-turn operation.

• Quick Advance (QA) Series: Gear-assisted piston with fast 1/3-turn functionality.

All sampling valves are compatible with live sample extraction containers to improve safety and sample integrity.

Ram Valves | Drain Valves (Bottom Outlet Valves)

Designed to break crust, drain without restriction, and handle viscous fluids, slurries, or polymers, Strahman’s bottom outlet process valves are trusted in critical reactor, vessel, and tank applications.

• Soft Seal Piston Valves (DV & VL Series): Wide temperature range (-328°F to 1000°F), various materials including stainless steel, titanium, and Hastelloy.

• Metal & Dual Seated Piston Valves (VP Series): Enhanced sealing for medium pressure and vacuum conditions.

• Disc Valves (VD Series): Full flow bottom outlet with optional jacketing, vacuum compatibility, and custom sealing systems.

• Rising Disc Valves (VR Series): Crust-breaking design for tougher materials and demanding environments.