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Rotary ball control valves are engineered to deliver accurate flow modulation across a wide range of industrial processes. Utilising a rotating ball with a machined bore, these valves provide precise control of fluid flow, enhancing operational efficiency while minimising wear on internal components. Known for their durability, low-maintenance design, and adaptability to varying pressures and temperatures, they are a trusted choice in industries such as oil and gas, power generation, and water treatment.

Key features and benefits.

Key Features

The rotary ball design allows for accurate, responsive control across a wide range of flow conditions. This ensures stable operation even in systems with fluctuating demand or pressure.

Key Features

With fewer moving parts and reduced friction during operation, these valves experience less wear compared to linear designs. This translates to longer service life and lower maintenance costs.

Key Features

Capable of handling a variety of media—including liquids, gases, and slurries—under different pressures and temperatures. Their robust design makes them suitable for harsh environments across multiple industries.

The Pfeiffer BR26a Stainless Steel Ball Valve is designed to meet the demands of general service applications falling under the ANSI Class 300 pressure rating. Constructed for environments where erosion, abrasion, and corrosion are common challenges, the BR26a delivers tight shut-off performance and robust durability under harsh process conditions. Its internal flow path is optimised for high flow capacity, making it well-suited for systems requiring significant throughput. However, due to its reduced pressure recovery factor, this design can be more susceptible to cavitation, flashing, and flow-induced noise, particularly in high-pressure drop applications.

Size Range:	1/2" to 8"
ANSI Class Range:	150 to 300
Materials Available:	Stainless Steel
Temperature Range:	14 to 392°F (-10 to 200°C)

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Key Features

The BR26a valve features an internal geometry optimised for large flow volumes, making it suitable for high-capacity general service applications. This increased capacity is ideal for maintaining throughput in systems with wide-open control demands.

Key Features

Built on the SAMSON GROUP modular principle, the valve supports pneumatic, electric, hydraulic, or electro-hydraulic actuators. It can be fully outfitted with accessories like positioners, limit switches, and solenoid valves for complete control integration.

Key Features

Constructed from high-grade stainless steel, the BR26a is resistant to corrosion, erosion, and abrasive media. This makes it a strong performer in chemically aggressive or high-wear process environments.

The Pfeiffer BR26d Stainless Steel Ball Valve is purpose-built for general service applications operating within the ANSI Class 300 pressure range. Engineered to perform reliably in systems exposed to erosion, abrasion, and corrosion, this valve offers tight shut-off and robust durability for demanding industrial processes. The BR26d features an internal design optimised for enhanced flow capacity, helping maintain system efficiency in high-throughput operations. However, its lower pressure recovery factor may contribute to cavitation, flashing, and elevated flow noise under high differential pressure conditions.

Size Range:	1/2" to 4"
ANSI Class Range:	150 to 300
Materials Available:	Stainless Steel
Temperature Range:	-76 to 392°F (-60 to 200°C)

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Key Features

The BR26d offers increased flow capacity thanks to its streamlined internal geometry, making it ideal for high-demand general service processes. This boost in capacity supports efficient system operation even at full bore.

Key Features

Designed for flexibility, the BR26d supports integration with pneumatic, electric, hydraulic, or electro-hydraulic actuators. This allows for easy inclusion in both manual and automated process control systems.

Key Features

Based on SAMSON's modular assembly principle, the valve enables straightforward pairing with control accessories like positioners, solenoids, and limit switches. This simplifies installation and maintenance while enhancing system responsiveness and control accuracy.

The Pfeiffer BR26s Ball Valve represents a heavy-duty, high-performance solution tailored for general service and demanding process conditions within the ANSI Class 300 pressure rating. Built to withstand erosion, abrasion, and corrosion, the BR26s is ideal for harsh industrial environments such as chemical plants, refineries, and power stations. Its adaptable design supports both floating and trunnion-mounted configurations, allowing it to meet a wide range of application requirements from low- to high-pressure systems.

Size Range:	1" to 32"
ANSI Class Range:	150 to 300
Materials Available:	Stainless Steel
Temperature Range:	-325 to 1022°F (-196 to 550°C)

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Key Features

The BR26s supports both floating and trunnion-mounted designs, offering flexibility for varying pressure conditions and process demands. This adaptability makes it suitable for a broad spectrum of general and heavy-duty service applications.

Key Features

Its streamlined internal flow path enables excellent throughput while maintaining tight shut-off. While pressure recovery is reduced, the valve's design manages wear-prone environments with confidence.

Key Features

Designed for integration with SAMSON actuators and control accessories, the BR26s fits seamlessly into advanced process control systems. Optional add-ons such as solenoids, limit switches, and positioners enable smart control with minimal additional effort.

Starline Rotary Ball Control Valves are designed to deliver high-performance flow control across a wide spectrum of industrial applications. Offering a diverse lineup—including the MEGA STAR, MASTER STAR, SUPER STAR, SPLIT STAR Cryogenic, and ULTRA STAR—Starline ensures that each valve variant meets specific operational challenges with precision, efficiency, and robust construction.

These valves are built to withstand the rigours of abrasive, corrosive, high-pressure, and cryogenic conditions, providing reliable shut-off and smooth modulation even in the most extreme environments. Whether used in oil and gas, petrochemical, power generation, or LNG applications, Starline Rotary Ball Valves are engineered for long service life, low maintenance, and optimal control performance.

Size Range:	DN008-DN250 (1/4"-10")
Body Materials:	Carbon Steel, Stainless Steel, Monel, & Inconel
Body Types:	Full Bore, Reduced Bore, Trunnion, & Floating Ball
Applications:	Gas, Air, Chemical, Petro-Chemical, Oil & Gas, High Temperature, Abrasive, Corrosive, & Cryogenic
Pressure Rating:	600LB, 900LB, 2500LB, & 6000PSI
End Connections:	Screwed BSPP, BSPT, NPT, Flanged, Socket Weld, Butt Weld

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Key Features

With options like MEGA STAR, ULTRA STAR, and SPLIT STAR Cryogenic, Starline provides purpose-built valves for everything from standard industrial use to extreme cryogenic service. Each valve is tailored to deliver dependable control under specific process conditions.

Key Features

Constructed from high-grade materials and designed to manage erosive, corrosive, and high-pressure media, these valves thrive in challenging environments. They maintain performance integrity where other valves might fail.

Key Features

All Starline rotary valves are compatible with pneumatic, electric, or electro-hydraulic actuators for seamless automation. Their rotary design reduces wear and friction, resulting in extended service life and lower operational costs.

These valves are designed for precise flow regulation and shut-off in industrial applications such as chemical processing, power generation, water treatment, and pulp and paper. They’re ideal for handling challenging process conditions like pressure drops, abrasive media, and fluctuating flows.

Rotary ball valves use a quarter-turn motion for control, offering compact design, lower friction, and reduced wear compared to linear globe valves. They are especially suited for high-capacity flow and fast-response control applications.

Most SAMSON rotary ball valves are engineered with an equal-percentage flow characteristic, delivering excellent control performance across a wide range of flow conditions.

Yes. SAMSON rotary ball control valves are specifically designed for accurate throttling, not just on/off service, making them ideal for dynamic process control.

They are typically available in sizes from 1" to 12", with ANSI 150, 300, and PN-rated pressure classes depending on the model.

Absolutely. They can be equipped with pneumatic, electric, or electro-hydraulic actuators, and integrated with positioners, solenoid valves, and limit switches for full process automation.

These valves are available in a range of materials including carbon steel, stainless steel, low-temperature alloys, and high-performance materials for corrosive or abrasive media.

Select models like the VETEC rotary plug valves are designed to minimise cavitation and flashing damage by controlling velocity and pressure recovery in critical flow areas.

Yes. SAMSON’s segmented ball valves are particularly effective in slurry and erosive media thanks to their rugged internals and rotary control design that reduces wear.

Rotary ball valves have fewer wear points and require less maintenance than linear valve types. SAMSON designs also support easy access to internal components for servicing.

Yes. When combined with the right accessories and control systems, SAMSON rotary valves can be used in fail-safe configurations, SIL-rated systems, and emergency shutdown applications.

Yes, SAMSON rotary ball valves are fully compatible with SAMSON smart positioners, control accessories, and integrated valve packages, enabling seamless integration into modern process control systems.

Please feel free to request information and advice using the form below or call us on 0151 547 1221

SAMSON Rotary Ball Control Valves