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ZMAQ

Pneumatic 3-Way Globe Control Valve (Mixing / Diverting) - WCB Flanged | DELCO

The DELCO Pneumatic 3-Way Control Valve is a heavy-duty modulating valve designed for precise fluid Mixing (Confluence) or Diverting (Split) in heat exchange and industrial process loops. Powered by a responsive Multi-Spring Diaphragm Actuator with a smart positioner (4-20mA), it ensures accurate temperature and pressure control. Available in DN15–DN600 with Cast Steel (WCB) or Stainless Steel bodies, compliant with ANSI/DIN/JIS standards.

point Size Range: DN15-DN600
point Material: WCB,Stainless Steel etc.
point Connection Standard: GB/ANSI/JIS/DIN
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Features

Optimized for thermal management systems, this valve combines versatile 3-way flow configurations with robust pneumatic automation for stable control:

✅Versatile Mixing & Diverting Configurations
The valve utilizes a specialized spool design to handle two distinct flow modes: Mixing Type (Confluence) for blending two fluids into one, or Diverting Type (Split) for separating one fluid into two paths. This replaces the need for two separate 2-way valves, saving installation space and piping costs.
✅Multi-Spring Diaphragm Actuator
Equipped with a compact ZHA/ZHB type multi-spring pneumatic diaphragm actuator. It offers a low profile, high output force, and reliable fail-safe operation (Air-to-Open or Air-to-Close) to protect the system during air supply failure.
✅Precise 4-20mA Positioning
Integrated with an Electro-Pneumatic Valve Positioner, the valve accepts standard 4-20mA signals to convert electrical commands into precise stem displacement. This ensures rapid responsiveness for controlling heat transfer fluids, cooling water, and steam.
✅Wide Temperature Range (-40°C to +450°C)
Standard bodies (WCB) operate efficiently from -20°C to 200°C. For extreme thermal applications, we offer High-Temperature Bonnets with Cooling Fins (radiators) to dissipate heat, protecting the actuator and packing in temperatures up to 450°C.
✅Robust WCB/SS Construction & Standards
The valve body features a rigid guide structure to minimize vibration. Flange connections are machined to ANSI 150/300, DIN PN16/40, and JIS standards, allowing for seamless integration into global pipelines.

  • Pneumatic 3-Way Globe Control Valve (Mixing / Diverting) - WCB Flanged
    Pneumatic 3-Way Globe Control Valve (Mixing / Diverting) - WCB Flanged
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Key Application Fields

  • Oil & Gas
    DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines.
  • Chemical & Petrochemical
    DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely.
  • Power Generation
    DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants.
  • Food & Pharmaceutical
    DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity.
  • Water & Wastewater
    Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability.
  • HVAC & District Heating
    DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.

Browse our case studies or talk directly with our engineers to discuss your application.

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