Specification
Double Acting Double Eccentric Pneumatic butterfly Valve for Steam Pipe and Steam Pipe in Valve
In high-cycle applications requiring rapid isolation and precise modulation, traditional valves struggle with wear and response lag. NWV’s double-offset pneumatic butterfly valve—crafted from CF8M stainless steel with ISO 5211-compliant actuators—delivers zero-friction sealing, millisecond actuation, and corrosion immunity, setting new standards for chemical processing, power generation, and automated fluid systems.
Assembly & Validation
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Process
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Standard
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Acceptance Criteria
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Torque Calibration
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ISO 5211
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≤45 Nm @ DN300
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Seat Deformation Test
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API 598 Annex F
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≤0.1% permanent set
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Cycle Endurance
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MSS SP-67
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250,000 cycles @ 25°C
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Fugitive Emissions
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ISO 15848-1
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Class BH (≤50 ppm methane)
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Technical Superiority: Beyond Standard Butterflies
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Parameter
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NWV Double-Offset
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Concentric Competitor
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Seal Wear Rate
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0.003mm/10k cycles
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0.12mm/10k cycles
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Operating Torque
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22% of theoretical
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65% of theoretical
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Temperature Range
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-196°C to 425°C
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-29°C to 150°C
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Bubble-Tight Shutoff
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DN600 @ 150LB
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Max DN300 @ 150LB
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Product Overview
Nwv Double-Offset Pneumatic Butterfly Valve: Precision Flow Control for Demanding Industrial Processes
In high-cycle applications requiring rapid isolation and precise modulation, traditional valves struggle with wear and response lag. NWV’s double-offset pneumatic butterfly valve—crafted from CF8M stainless steel with ISO 5211-compliant actuators—delivers zero-friction sealing, millisecond actuation, and corrosion immunity, setting new standards for chemical processing, power generation, and automated fluid systems.
