Description
Buy Butterfly Valve BD343H PN10 Cast Iron Wafer Electric Operated
The VALVEHU BD343H High-Temperature Butterfly Valve is engineered for industrial fluid systems that demand reliable sealing, efficient flow control, and thermal resistance. Designed with a double-flanged body structure, this valve ensures excellent stability during operation, even under elevated pressures and harsh temperature conditions.
Manufactured with robust materials such as cast steel, stainless steel, and alloy steel, the BD343H series is built to withstand working temperatures ranging from –25°C to 425°C for standard metals and up to 600°C for special alloys. This makes it suitable for high-temperature applications including steam, thermal oil, and flue gas systems.
The valve adopts a centered disc design with options for pneumatic, electric, or manual gear operation. The disc and seat are precision-machined to reduce leakage and provide tight shutoff. All valves in this series conform to PN10 and PN16 pressure classes, and their performance has been validated through pressure, sealing, and gas tightness testing as per industry standards.
BD343H also features flexible mounting dimensions, making it easily integrable into a variety of pipeline configurations from DN50 up to DN1000. The stem material includes options such as 1Cr13 and 2Cr13, ensuring high strength and corrosion resistance in demanding media environments.
Whether you’re managing a power plant, chemical process, or industrial HVAC system, this valve delivers reliable service with minimal maintenance needs. Its compact structure, combined with high flow capacity and low pressure drop, adds value to any pipeline network.
If you are looking for performance, durability, and proven engineering, VALVEHU has the valve solution tailored to your needs. Contact our specialists in China today to get expert assistance with selecting the right valve for your application.
Technical Specifications
Pressure Rating: PN10 and PN16 for various sizes
Working Temperature: –25°C to 425°C (metal), up to 600°C (non-metal seat)
Body Materials: Cast steel, stainless steel, alloy steel
Disc Materials: Stainless steel, copper alloy, cast iron
Seat Type: Soft seat and metal sealing options
Applicable Media: Steam, thermal oil, flue gas
Actuation Options: Pneumatic, electric, or manual gear
Stem Material: 1Cr13, 2Cr13, stainless steel
Leakage Class: Passed pressure and air tightness tests
Connection Type: Double flange structure (lugged design)
Main Component Materials
| Component Name | Material |
|---|---|
| Valve Body | Cast steel, stainless steel, copper alloy, alloy steel |
| Disc | Cast steel, stainless steel, copper alloy, alloy steel |
| Seat | Stainless steel, wear-resistant materials |
| Stem | 1Cr13, 2Cr13, stainless steel, copper alloy |
| Bearing | Austenitic stainless steel, 304 oxidized |
| Packing | Flexible graphite |
Main Technical Parameters
| Specification Model | DN (mm) | 50–2000 | 50-2000 | 50-2000 | 50–500 |
|---|---|---|---|---|---|
| 0.6 | 1.0 | 2.5 | 4.0 | ||
| Test Pressure | Shell Test | 0.9 | 1.5 | 3.75 | 6.0 |
| Seal Test | 0.66 | 1.1 | 2.75 | 4.4 | |
| Air Seal Test | 0.6 | 0.6 | 0.6 | 0.6 | |
| Applicable Temp. | Carbon Steel: -25℃~425℃ | Stainless Steel: -40℃~≤600℃ | |||
| Suitable Medium | Normal temperature high-viscosity medium | ||||
| Actuation Type | Worm gear drive | Pneumatic actuation | Electric actuation |
Overall Dimensions and Connection Sizes – Model BD343H, PN10 (DN50–DN1000)(Unit: mm)
| Nominal DiameterDN (mm) | L | H1 | BD343H | PN1.0MPa | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| La | Lb | H | L1 | L2 | D | D1 | D2 | Z–Φd | b | ||
| 50 | 108 | 150 | 95 | 340 | 180 | 200 | 160/165 | 125 | 100 | 4–18 | 18 |
| 65 | 112 | 170 | 100 | 350 | 180 | 200 | 180/185 | 145 | 120 | 4–18 | 18 |
| 80 | 114 | 180 | 115 | 375 | 180 | 200 | 195/200 | 160 | 135 | 4–18 | 20 |
| 100 | 127 | 190 | 130 | 405 | 180 | 200 | 215/220 | 180 | 155 | 8–18 | 22 |
| 125 | 140 | 210 | 145 | 440 | 270 | 280 | 245/250 | 210 | 185 | 8–18 | 22 |
| 150 | 160 | 230 | 160 | 615 | 400 | 425 | 280/285 | 240 | 210 | 8–23 | 24 |
| 200 | 178 | 250 | 200 | 695 | 400 | 425 | 335/340 | 295 | 265 | 8–23 | 24 |
| 250 | 197 | 270 | 230 | 750 | 450 | 560 | 390/395 | 350 | 320 | 12–23 | 26 |
| 300 | 210 | 300 | 250 | 800 | 450 | 560 | 440/445 | 400 | 368 | 12–23 | 28 |
| 350 | 216 | 320 | 270 | 990 | 535 | 580 | 500/505 | 460 | 428 | 16–23 | 28 |
| 400 | 222 | 330 | 300 | 1040 | 535 | 580 | 565 | 515 | 482 | 16–25/26 | 30 |
| 450 | 229 | 350 | 320 | 1130 | 535 | 580 | 615 | 565 | 532 | 20–25/26 | 30 |
| 500 | 240 | 370 | 340 | 1380 | 570 | 660 | 670 | 620 | 585 | 20–25/26 | 32 |
| 600 | 267 | 430 | 390 | 1500 | 750 | 550 | 780 | 725 | 685 | 20–30 | 36 |
| 700 | 292 | 470 | 440 | 1585 | 750 | 550 | 895 | 840 | 800 | 24–30 | 36 |
| 800 | 330 | 500 | 490 | 1680 | 750 | 550 | 1010 | 950 | 905 | 24–34 | 38 |
| 900 | 356 | 530 | 530 | 1760 | 950 | 750 | 1110 | 1050 | 1005 | 28–34 | 38 |
| 1000 | 410 | 550 | 795 | 2020 | 1000 | 925 | 1220 | 1160 | 1115 | 28–36 | 38 |
FAQ
What pressure ratings are available for the BD343H valve?
The BD343H supports both PN10 and PN16 pressure classes depending on size and configuration.
Is the BD343H suitable for high-temperature applications?
Yes, it operates reliably in temperatures up to 425°C and up to 600°C with suitable materials.
What materials are used in the valve construction?
Body and disc options include stainless steel, cast steel, copper alloy, and high-temperature resistant alloys.
What actuation methods are supported?
This valve can be operated manually, pneumatically, or electrically.
What industrial media is this valve compatible with?
It is suitable for steam, thermal oil, flue gas, and other high-temperature process fluids.
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