← Back Spirax Sarco SP500 Three-Way Control Valves

Spirax Sarco Three-Way Control Valves with SP500 Smart Positioner
Precision Control and Maximum Reliability for Your Industrial Processes

Spirax Sarco's three-way control valves are the definitive solution for mixing and diverting applications in steam, water, thermal oil, and other industrial fluid systems. Designed for superior performance and exceptional durability, these valves, when paired with the SP500 smart positioner, ensure unparalleled efficiency and precision.

Product Overview
Our three-way valves are engineered to flawlessly manage two critical process functions:

Mixing Function: Combining two inlet flows into a single outlet flow, ideal for precise temperature regulation.

Diverting Function: Diverting one inlet flow to one of two available outlets, perfect for bypassing heat exchangers or managing multiple circuits.

Manufactured from high-quality materials such as ductile iron, carbon steel, and stainless steel, Spirax Sarco valves ensure a perfect seal and superior resistance even under the most severe operating conditions.

The Advantage of the SP500 Smart Positioner
While the valve body handles the fluid, the Spirax Sarco SP500 positioner is its brain. This smart electropneumatic positioner offers a superior level of control compared to standard systems.

Absolute Precision: The SP500 translates the control signal (e.g., 4-20 mA) into extremely precise actuator movement, ensuring the valve reaches the desired position quickly and without oscillation.

Auto-Calibration (Auto-Stroke): Simplifies installation and commissioning by automatically calibrating the valve's travel with a simple command, reducing downtime and labour costs.

Advanced Diagnostics: Continuously monitors valve performance, providing valuable data and predictive alarms for wear, abnormal friction, or pneumatic supply issues. This allows maintenance to be planned before a failure occurs.

Digital Communication: Supports communication protocols such as HART®, enabling integration with modern process control systems (DCS, PLC) for centralized and intelligent plant management.

Reliability and Safety: Designed to operate in harsh industrial environments, it is also available in ATEX-certified versions for potentially explosive atmospheres.

Key Features and Benefits
Energy Efficiency: Precise control of temperature and flow rates results in optimized energy consumption and reduced operating costs.

Final Product Quality: The process stability, guaranteed by the valve's rapid response, ensures consistent and repeatable quality for your product.

Long Operational Life: The robust construction of Spirax Sarco valve bodies and actuators minimizes wear and guarantees years of reliable service.

Simplified Maintenance: The modular design and the advanced diagnostics of the SP500 make maintenance operations faster and more effective.

Application Flexibility: A wide range of sizes (from DN15 to DN150 and beyond), materials, and connections (flanged or threaded) to suit any plant specification.

Typical Applications
Spirax Sarco three-way valves are the ideal choice for:

Temperature control in heat exchangers and heating coils.

Domestic hot water and central heating systems.

Bypass circuits for flow rate control.

Thermal oil systems.

Process applications in the food and beverage, chemical, pharmaceutical, and textile industries.