Cast Steel Triple Offset Butterfly Valve DN200 Price: For High Temperature and High Pressure Service
The cast steel triple offset butterfly valve DN200 is engineered specifically for these demanding conditions, combining a robust WCB body with a metal-to-metal hard seal that maintains zero-leakage performance across a wide temperature range.The main Butterfly Valve product names of China Butterfly Valve Network include:Anti-condensation Al-alloy Diecasting Butterfly Valve,Butterfly Buffering Check ValveButt Welded Hard-sealed Butterfly Valve,Electric Metal Hard-sealed Wafer Butterfly Valve,Electric Hard-sealed Flange Butterfly Valve,Electric Soft-sealed Wafer Butterfly Valve,Electric Single Eccentric Wafer Butterfly Valve,Electric Soft-sealed Flange Butterfly Valve.
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2026 Price Reference for DN200 Cast Steel Triple Offset Butterfly Valve
As of 2026, the price of a DN200 cast steel triple offset butterfly valve varies primarily by actuation type and pressure rating. For a manual worm-gear operated model with a WCB carbon steel body and PN16 rating, the reference price is approximately 988 RMB for the valve body alone. Electric actuated versions, complete with an intelligent quarter-turn actuator, range from approximately 2,099 to 2,100 RMB. A basic electric model from another supplier is listed at around 2,500 RMB. These figures are manufacturer reference prices; the final cost depends on the pressure rating (PN16, PN25, or higher), sealing configuration, and order quantity.
Why Triple Offset Design Is Essential for High Temperature and High Pressure
The defining feature of the triple offset butterfly valve is its friction-free operation. The three offsets—axial, radial, and conical—cause the disc to lift away from the seat immediately upon opening, eliminating rubbing contact during the 90-degree stroke. This design enables the metal-to-metal seal to achieve bidirectional zero leakage while withstanding temperatures up to 425°C for WCB carbon steel bodies. The metal hard seal resists erosion and maintains sealing integrity under thermal cycling, making it suitable for steam, hot oil, and high-pressure gas service where elastomer seats would degrade.
Key Selection Parameters
When specifying a DN200 triple offset butterfly valve for high-temperature and high-pressure service, confirm the pressure rating matches the system maximum, with PN16 or PN25 being common for steam and process lines. The body material is typically WCB cast carbon steel for temperatures up to 425°C; for higher temperatures or corrosive media, stainless steel or alloy steel bodies are available. The sealing surfaces should be hardfaced with Stellite or a comparable alloy to resist wear and erosion. Actuation options include manual worm gear, electric, and pneumatic, with electric actuators offering remote control and position feedback for automated systems.
Summary
The cast steel triple offset butterfly valve DN200 delivers reliable zero-leakage isolation for high-temperature and high-pressure pipelines. Manual models start at approximately 988 RMB, while electric actuated packages range from 2,099 to 2,500 RMB. When selecting this valve, prioritize the pressure rating, body material compatibility with operating temperature, and hardfaced metal sealing surfaces. For accurate pricing tailored to your specifications, contact manufacturers directly with your complete technical requirements.
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