Pneumatic single seat control valve

Body: WCB, SS316,SS316L
Ends: Flange, wafer
Seat: 17-4PH Stainless Steel ASTM A564Gr630
Size: 1/2″ – 12″ (15mm – 300mm)
End connections:
ASME B16.34 class 150-600

    Category: Control valve


    Pneumatic Single Seat Control Valve – the top choice for precision flow control in industrial applications. Our valve core adopts an innovative upper-guided structure, ensuring maximum efficiency and precision in fluid flow. The compact valve body and S-shaped fluid channel reduce pressure drop loss, allowing for a larger flow and wider adjustable range. Our valve’s high flow characteristic accuracy is in compliance with the IEC534-2-1976 standard

    top-guided single-seat regulating valve also meets the stringent ANSI B16.104 standard for leakage, ensuring a tight seal and minimal product loss. This makes it the ideal choice for high temperature, low temperature, and low pressure difference environments, where reliability and closing performance are crucial.

    Pneumatic single seat control valve

    Equipped with a multi-spring diaphragm or cylinder actuator, control valve boasts a compact design with a powerful output force. This means you can count on our single seated globe control valve to deliver precise control, even in the most demanding conditions.

    • Valve body material: WCB,WCC,WC6, CF8, CF8M, CF3M
    • Valve cover material: WCB, CF8, CF8M, CF3M
    • Valve trim: SS316+STL
    • Packing: PTFE, graphite
    • Nominal diameter: 1/2“-10“ DN15-DN250
    • Nominal pressure: ANSI150, 300, 600  JIS 16, 20, 30, 40K  PN1.6, 4.0, 6.4, 10MPa
    • Body type: straight-through, angle
    • Bonnet type: standard, heat dissipation, bellows, jacket insulation
    • Connection: flange FF, RF, RJ, TG, MFM Welding SW
    • Flow characteristics: linear
    • Leakage level:  hard seal (ASME B16.104 IV)  Soft seal (ASME B16.104 VI)
    • Operating temperature:
    • Standard type -17~+230℃
    • Elongation type I (EI) -45~-17℃, +230~+566℃
    • Elongation type II (EII) -100~-45℃
    • Elongation type III (EIII) -196~-100℃


    • Pneumatic actuator: diaphragm type
    • Action mode: direct action, reverse action
    • Fault position: normally open, normally closed
    • Accessories: solenoid valve, electric positioner, limit switch, handwheel, position-keeping valve, air source filter
    • Electric actuator: intelligent regulating type and intelligent switching type
    • control signal:4-20mA


    What is single-seated control valve?

    Single-seated control valve is a type of valve designed for regulating fluid flow with high precision and efficiency. This valve features a single plug that moves in relation to a single seat, modulating the flow rate through the valve.

    The construction of a single-seated control valve typically involves a streamlined flow path that reduces turbulence and pressure drop across the valve. This design is particularly beneficial in applications requiring precise control of process variables such as temperature, pressure, and flow rate. Single-seated control valves are often used in industries like chemical processing, oil and gas, power generation, and pharmaceuticals, where maintaining stringent process control is paramount.

    Control valves are available in various materials and configurations to withstand different types of media and operating conditions, ensuring long-term durability and compatibility with a wide range of industrial processes. The inclusion of advanced actuation options—such as pneumatic, electric, or hydraulic actuators—further enhances the functionality and adaptability of single-seated control valves, enabling seamless integration into automated control systems.

    What are the applications of pneumatic control valve?

    Pneumatic control valves are essential components in various industrial applications, leveraging compressed air to modulate the flow of fluids with precision and reliability. These valves are integral to systems that demand high responsiveness and accuracy, making them ideal for a wide range of sectors.

    In the oil and gas industry, pneumatic control valves are utilized for managing the flow of hydrocarbons, ensuring safe and efficient extraction, processing, and transportation.

    Chemical processing plants rely on pneumatic control valves for their exceptional accuracy and repeatability in regulating the flow of aggressive chemicals and corrosive fluids.

    Power generation facilities employ pneumatic control valves to regulate steam and cooling water flow, optimizing turbine efficiency and maintaining stable power output.

    Pneumatic single seat control valve

    In the pharmaceutical industry, these valves are used in manufacturing processes that require sterile and precise control of fluid flow.

    Pneumatic control valves find applications in HVAC systems, where they regulate air flow to achieve optimal climate control within commercial and industrial buildings. Their ability to provide fine-tuned adjustments enhances energy efficiency and occupant comfort.

    Overall, pneumatic control valves are vital in numerous industries due to their versatility, durability, and precision. Their application extends from controlling simple on-off operations to complex process automation, underscoring their role in enhancing operational efficiency and ensuring compliance with industry standards across the globe.