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High Performance Butterfly Valve (Series 60 Rotrol)
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About Rotary Control Valves
The Rotrol series of high-capacity butterfly valves has been designed to address the challenges commonly found in traditional designs, including issues related to control, cavitation, and noise. This groundbreaking control valve excels particularly in demanding applications, where there are significant pressure drops in the controlling position, yet there's a need for substantial flow rates at minimal pressure differentials.
  • SIZES: 6" to 48" (150mm to 1200mm)
  • RATINGS: ASME 150 to ASME 2500
Why Choose A Koso India Rotrol Butterfly Valve?
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VALVE TYPE ANSI RATING DISC CONFIGURATION BODY STYLE LEAKAGE CLASS TEMPERATURE (oC)
Introseal soft-seat 150 to 2500 Standard and Rotrol Wafer, flanged lugged VI -196 to +235
Introseal metal-seat 150 to 2500 Standard and Rotrol Wafer, flanged lugged IV -196 to +600
Introseal Firesafe 150 to 2500 Standard and Rotrol Wafer, flanged lugged VI -196 to +235
Control (no seat) 150 to 2500 Standard and Rotrol Wafer, flanged lugged II -196 to +800
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Features
  • Profiled vane with cowls on leading and trailing edges to dissipate energy created by pressure drop across the valve.
  • Baffle plates fitted for noise attenuation.
  • High rangeability - excellent control between 5o and 90o of opening.
  • Operating torque requirements are around half the conventional butterfly valve requirements, requiring smaller more compact actuators.
  • Complete range of body materials.
  • Temperature range: -196oC to 800oC
Valve Selection Criteria
  • Series 63 :
    Designed for situations necessitating 100% shut-off (Class VI) on liquids or gases, while enabling control over pipeline flow.
    Temperature range : -196oC to 235oC.
    Pressure drops : up to 100 bar.
  • Series 64 :
    Tailored for applications allowing minor leakage (Class IV) in the closed position, or where elevated temperatures or demanding conditions preclude a soft seat.
    Temperature range : :-196oC to 600oC. Higher temperatures can be achieved with guidance from our engineering department.
    Pressure drops : up to 100 bar.
  • Series 65 :
    Similar to Series 63, with an added back-up seat for valve integrity in case of fire damage to the soft seat. The metal back-up seat ensures limited leakage when closed. The valve remains operational post-fire, facilitating safe replacement of seals.
  • Series 66 :
    Ideal when closed position leakage isn't critical, but precise liquid or gas control through the pipeline is essential. Maintains Class II leakage up to 200°C, with increased rates at higher temperatures.
    Temperature range : -196oC to 800oC.
    Pressure drops :up to 150 bar.
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