High Pressure Butterfly Valve
【Product Overview】
The D343H-40C Triple Offset High-Pressure Butterfly Valve is engineered for critical service applications where high temperature, high pressure, and zero leakage are required. Featuring a WCB carbon steel body, metal-to-metal hard seal, and triple eccentric structure, this valve minimizes seat wear and provides long-lasting, tight shut-off even in harsh environments.
With a PN40 flange connection and availability in large sizes, this valve is suitable for on-off and throttling control in power generation, petrochemical, and industrial steam systems.
【Key Features & Specifications】
Item | Description |
Model | D343H-40C |
Valve Type | Triple Offset Flanged Butterfly Valve |
Body Material | WCB (Carbon Steel) |
Disc Material | SS304 / SS316 / Alloy overlay (hard-faced) |
Seal Type | Metal-to-metal (laminated or solid seat) |
Pressure Rating | PN40 (400 psi / ~40 bar) |
Nominal Diameter | DN100–DN1200 (custom sizes available) |
End Connection | Flanged (GB/T 9113, ANSI Class 300 optional) |
Temperature Range | -29°C to +425°C (up to 600°C with special seat) |
Operation | Worm gear, pneumatic, or electric actuator |
Design Standard | GB/T 12238, API 609 (optional) |
Testing Standard | GB/T 13927, API 598 |
【Typical Applications】
Superheated steam pipelines
Petrochemical and refining systems
High-pressure gas or compressed air
Thermal oil and hot gas systems
Industrial boiler and power plants
Steel and cement industry automation lines
【Call to Action】
Request a quote today for D343H-40C triple eccentric butterfly valves. We offer full customization, fast production, and technical support for your project needs.
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