
LDBUCH series electric flange hard seal butterfly valve
| Valve body parameters | Technical Specifications | |
| Nominal diameter 50-600mm | Power supply voltage AC220V, AC380V (other specially designed) | |
| Nominal pressure PN16, PN25, PN40 | Environmental temperature -30 ℃~+70 ℃ | |
| Connection method: flange connection | Protection level IP67 | |
| Valve body materials WCB, SS304, SS316, SS316L | ||
| Disk board materials WCB, SS304, SS316, SS316L | Function Options | |
| 密Sealing materials Y (multi-layer or mixed hard seal), S (stainless steel) | Explosion proof type Explosion proof grade: dIIBT5 | |
| Metal seal) | Signal feedback X1 mechanical passive signal, X2 active signal | |
| Operating Temperature | C7:-30℃~350℃ | Equipped with a heater, the actuator components can be dried in humid environments |
| C8:-40℃~400℃ | Manual function Manual function Electric actuator with manual valve opening and closing function | |
| C9:-40℃~450℃ | The switch type is powered on and fully engaged, and powered on and fully engaged. | |
| Adjustable input 4-20mA, 1-5V, 0-10V signals to achieve ball valve adjustment function | ||
| standard specification | Applicable media include steam, oil, acidic or alkaline gases or liquids | |
| Flange standards GB9113, GB9113, GB9115 | Please refer to the optional electric actuator information for the electric parameters in the remarks | |
| Testing and Inspection GB/T13927-1992 \ B/T9092-1999 | ||
| Design Standard JB-T8527-1997 | Structural Length Standard GB/T12221 | |

| GB valve body size (mm) with LDE electric actuator | ||||||||
| Model | DN | L | D | D1 | H1 | H2 | Z-ФD | E-electric head |
| LDBUCH50 | 50 | 108 | 155 | 125 | 412 | 70 | 4-Ф16 | LDE-010 |
| LDBUCH65 | 65 | 112 | 175 | 145 | 425 | 76 | 4-Ф16 | LDE-010 |
| LDBUCH80 | 80 | 114 | 190 | 160 | 437 | 89 | 8-Ф16 | LDE-010 |
| LDBUCH100 | 100 | 127 | 214 | 18 | 452 | 104 | 8-Ф16 | LDE-010 |
| LDBUCH125 | 125 | 140 | 252 | 210 | 504 | 120 | 8-Ф16 | LDE-015 |
| LDBUCH150 | 150 | 140 | 282 | 240 | 521 | 132 | 8-Ф16 | LDE-020 |
| LDBUCH200 | 200 | 152 | 337 | 295 | 607 | 167 | 8-Ф16 | LDE-040 |
| LDBUCH250 | 250 | 165 | 405 | 350/355 | 686 | 202 | 12-Ф20 | LDE-060 |
| LDBUCH300 | 300 | 178 | 460 | 440/410 | 714 | 239 | 12-Ф20 | LDE-120 |
| LDBUCH350 | 350 | 190 | 524 | 460/470 | 749 | 265 | 16-Ф20 | LDE-120 |
| LDBUCH400 | 400 | 216 | 585 | 515/525 | 781 | 297 | 16-Ф24 | LDE-200 |
| GB valve body size (mm) with LDX electric actuator | ||||||||
| Model | DN | L | D | D1 | H1 | H2 | Z-ФD | E-electric head |
| LDBUCH50 | 50 | 108 | 155 | 125 | 302 | 70 | 4-Ф16 | LDX-005 |
| LDBUCH65 | 65 | 112 | 175 | 145 | 315 | 76 | 4-Ф16 | LDX-005 |
| LDBUCH80 | 80 | 114 | 190 | 160 | 327 | 89 | 8-Ф16 | LDX-010 |
| LDBUCH100 | 100 | 127 | 214 | 18 | 342 | 104 | 8-Ф16 | LDX-010 |
| LDBUCH125 | 125 | 140 | 252 | 210 | 348 | 120 | 8-Ф16 | LDX-016 |
| LDBUCH150 | 150 | 140 | 282 | 240 | 415 | 132 | 8-Ф16 | LDX-020 |
| LDBUCH200 | 200 | 152 | 337 | 295 | 482 | 167 | 8-Ф16 | LDX-040 |
| LDBUCH250 | 250 | 165 | 405 | 350/355 | 560 | 202 | 12-Ф20 | LDX-060 |
| LDBUCH300 | 300 | 178 | 460 | 440/410 | 721 | 239 | 12-Ф20 | LDX-100 |
| LDBUCH350 | 350 | 190 | 524 | 460/470 | 756 | 265 | 16-Ф20 | LDX-160 |
| LDBUCH400 | 400 | 216 | 585 | 515/525 | 788 | 297 | 16-Ф24 | LDX-200 |
Application Areas
This product is matched with a butterfly valve and an LDE series electric actuator (optional explosion-proof). It can be controlled by inputting a control signal (4-20mA or 1-5 VDC) and a single-phase power supply to operate. The electric butterfly valve
Valves have the advantages of strong functionality, small size, lightweight, reliable performance, simple matching, and large flow capacity. It is particularly suitable for applications where the medium is viscous, contains particles, and has fibrous properties.
At present, this electric regulating valve butterfly valve is widely used in industrial automatic control systems in industries such as food, environmental protection, light industry, petroleum, papermaking, teaching and research equipment, and power.
Product Features
*Three dimensional eccentric structure, with minimal wear and good sealing performance
*Multiple options including multi-layer sealing, hard sealing, and metal sealing
*Capable of withstanding high temperatures, high pressures, and corrosion
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.