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Bronze Disc Wafer Butterfly Valve - Durable & Efficient
Wafer butterfly valves offer several significant advantages. Firstly, their compact and lightweight design makes them highly space - efficient, ideal for installations where space is limited. Unlike traditional valves, their wafer - style body can be easily sandwiched between two flanges, reducing installation complexity and saving both time and cost.
The bronze disc butterfly valve stands out as a premium fluid control solution, with its core advantage lying in the high-performance aluminum bronze disc—a material engineered to deliver unmatched resistance to seawater corrosion, cavitation, and chemical erosion. Unlike standard carbon steel valves that degrade rapidly in harsh marine, desalination, or corrosive industrial environments, this valve maintains structural integrity and tight sealing for decades, reducing frequent replacements and maintenance costs. Its corrosion resistance is further reinforced by a precision-cast bronze disc finish, ensuring consistent performance even in prolonged exposure to saltwater, brackish liquids, and mild corrosive media.
A second key strength is its bubble-tight bi-directional sealing with minimal operating torque. The valve adopts a concentric disc structure paired with a fully encapsulated elastomer seat (customizable to EPDM, NBR, or PTFE), achieving zero-leakage shut-off that meets international industrial standards. This design not only prevents fluid loss but also reduces wear on stem and bearing components—critical for long-term durability. Unlike traditional valves that demand high torque to operate, its streamlined structure ensures smooth, effortless opening and closing, even under fluctuating pressure conditions, enabling precise throttling control for both on-off and proportional flow regulation.
Versatile compatibility and easy installation further elevate its market competitiveness. Available in wafer (space-efficient) and lug (tool-free removal) body configurations, it adheres to global standards including ANSI, DIN, and BS, ensuring seamless integration with diverse pipeline systems worldwide. Its compact, lightweight design simplifies on-site installation, cutting labor time and equipment costs. The valve accommodates a wide pressure range (PN10–PN16, Class 125/150) and temperature tolerance (-20°C to 120°C), making it adaptable to water treatment plants, marine piping, oilfield fluid transport, and desalination systems—eliminating the need for custom-specific variants.
Multi-actuation flexibility adds operational convenience, supporting manual lever, handwheel gearbox, electric, and pneumatic actuators. This allows seamless integration into both manual control systems and fully automated industrial pipelines, catering to diverse on-site control needs and future scalability. Complemented by a stainless steel stem and reinforced bearings that minimize friction during frequent cycling, the valve ensures stable, low-maintenance performance with reduced downtime.
As a cost-effective, high-reliability solution, it outperforms competitors in longevity, adaptability, and performance, making it the top choice for industries prioritizing durable, efficient flow control in challenging environments.
In terms of operation, these valves provide quick opening and closing, typically achieved with a 90 - degree rotation of the handle or actuator. This rapid response makes them suitable for applications requiring frequent on - off control. The streamlined disc design minimizes flow resistance, ensuring low pressure drop and high flow capacity, which improves system efficiency and reduces energy consumption.
DIMENSIONS in(mm)
| Size | A | B | C2 | D | E | F | KxK | Top | Plate |
| PCD | HOLE N-Dia | ||||||||
| DN50 | 140 | 70 | 105 | 41 | 90 | 30 | 11x11 | 70 | 4-θ9 |
| DN65 | 152 | 76 | 117 | 44 | 90 | 30 | 11x11 | 70 | 4-θ9 |
| DN80 | 159 | 91 | 130 | 44 | 90 | 30 | 11x11 | 70 | 4-θ9 |
| DN100 | 178 | 102 | 162 | 51 | 90 | 30 | 14x14 | 70 | 4-θ9 |
| DN125 | 191 | 119 | 187 | 54 | 90 | 30 | 14x14 | 70 | 4-θ9 |
| DN150 | 203 | 133 | 216 | 54 | 90 | 30 | 17x17 | 70 | 4-θ11 |
| DN200 | 241 | 170 | 271 | 64 | 125 | 30 | 17x17 | 102 | 4-θ11 |
| DN250 | 273 | 210 | 330 | 64 | 125 | 30 | 22x22 | 102 | 4-θ11 |
| DN300 | 308 | 243 | 376 | 76 | 125 | 30 | 22x22 | 102 | 4-θ11 |
| Size | A | B | C2 | D | E | F | K | SxS/d | Top Plate Data |
| PCD | |||||||||
| DN350 | 413 | 267 | 45 | 150 | 80 | 525 | 470 | 22x22 | 125 |
| DN400 | 451 | 309 | 45 | 175 | 90 | 585 | 525 | 27x27 | 140 |
| DN450 | 467 | 318 | 45 | 175 | 109 | 650 | 585 | 27x27 | 140 |
| DN500 | 525 | 350 | 45 | 175 | 127 | 720 | 650 | 36x36 | 140 |
| DN600 | 607 | 410 | 45 | 210 | 154 | 850 | 770 | 36x36 | 165 |
PN10
| Size | A | B | C | L | фD | фK | Nxфd | 4xM | фE | фF | a° | G | H | O | P | фR | Weight(Kg) |
| DN700 | 784 | 581 | 163 | 169 | 895 | 840 | 24xф31 | / | 741 | 695 | 15 | 355 | 146 | 146 | 228 | 400 | 361 |
| DN800 | 832 | 655 | 188 | 195 | 1015 | 950 | 24xф34 | / | 847 | 794.7 | 15 | 355 | 146 | 146 | 228 | 400 | 444 |
| DN900 | 974 | 745 | 203 | 211 | 1115 | 1050 | 24xф34 | 4xM30 | 943 | 864.7 | 12.857 | 377 | 170 | 170 | 243 | 450 | 660 |
| DN1000 | 1054 | 803 | 216 | 224 | 1230 | 1160 | 24xф37 | 4xM33 | 1049 | 965.7 | 12.857 | 377 | 170 | 170 | 243 | 450 | 830 |
PN16
| Size | A | B | C | L | фD | фK | Nxфd | 4xM | фE | фF | a° | G | H | O | P | фR | Weight(Kg) |
| DN700 | 784 | 581 | 163 | 169 | 910 | 840 | 20xф37 | 4xM33 | 741 | 695 | 15 | 355 | 146 | 146 | 228 | 400 | 396 |
| DN800 | 926 | 655 | 188 | 195 | 1025 | 950 | 20xф40 | 4xM36 | 847 | 794.7 | 15 | 377 | 170 | 170 | 243 | 450 | 573 |
| DN900 | 974 | 745 | 203 | 211 | 1125 | 1050 | 24xф40 | 4xM36 | 943 | 864.7 | 12.857 | 377 | 170 | 170 | 243 | 450 | 690 |
| DN1000 | 1110 | 803 | 216 | 224 | 1255 | 1170 | 24xф43 | 4xM39 | 1049 | 965.7 | 12.857 | 476 | 180 | 250 | 302 | 450 | 1025 |





