
LDBUCHP series pneumatic flange hard seal butterfly valve
| Technical Specifications | Valve body parameters | |
| Cylinder form double acting, single acting | Nominal pressure PN6, PN10, PN16, PN25, PN40 | |
| Environmental temperature -20 ℃~+80 ℃ | Connection method flange JB, GB (special selection ANSI, JIS) | |
| Gas source pressure double acting 4-8 bar, single acting 5-8 bar | Valve body materials WCB, SS304, SS316, SS316L | |
| Valve plate materials WCB, SS304, SS316, SS316L | ||
| Function Options | Sealing materials Y (multi-layer or mixed hard seal), S (stainless steel metal seal) | |
| Explosion proof type Explosion proof grade: dIIBT4 | Operating Temperature | C6:-30℃~250℃(Y) |
| Signal feedback X1 mechanical passive signal, X2 active signal | C7:-30℃~350℃(S) | |
| The manual function pneumatic valve can be operated with a handwheel, manual valve opening, and valve closing functions | C8:-40℃~400℃(S) | |
| Adjustable input 4-20mA signal to achieve ball valve adjustment function | C9:-40℃~450℃(S) | |
| standard specification | Attachment Options |
| Design based on GB standards and ABSI standards | Feedback switch, also known as limit switch, remote feedback switch signal |
| Flange standards GB9113, GB9113, GB9115 | Electromagnetic valve with double acting option, two position five way, and single acting option, two position three way |
| Design standard GB 12238 API609 | Triple components can stabilize the gas source, filter, and add lubricating oil to the cylinder |
| Structural length GB/12221 ANSI B16.10 | The handwheel mechanism can be rotated to manually open and close valves |
| Flange connection GB/12221 ANSI B16.10 | Electrical locator inputs 4-20mA signal to achieve ball valve adjustment function |
| Flange connection dimensions JB/9113, JB/T79 ANSI B16.5 (2-24 ”) | Please refer to the selected pneumatic actuator information for cylinder parameters |
| ANSI B16.47(26~32”) | |
| Experiment and Inspection JB/T9092 API598 |

| Main external connection dimensions D643H(F、Y)-PN16(1.6MPA) | ||||||||||||
| Model | DN | L | L1 | L2 | ~H | H1 | D | D1 | D2 | f | n-Φd | Actuator model |
| LDBUCHP50 | 50 | 108 | 159/211 | 83/95 | 277/205 | 65 | 165 | 125 | 99 | 3 | 4-Φ18 | LD065P/LD083SK |
| LDBUHP65 | 65 | 112 | 211/248 | 95/107 | 287/315 | 75 | 185 | 145 | 118 | 3 | 4-Φ18 | LD075P/LD083SK |
| LDBUCHP80 | 80 | 114 | 248/269 | 107/123 | 365/375 | 85 | 200 | 160 | 132 | 3 | 8-Φ18 | LD083P/LD105SK |
| LDBUCHP100 | 100 | 127 | 269/315 | 123/141 | 420/436 | 130 | 220 | 180 | 156 | 3 | 8-Φ18 | LD105P/LD125SK |
| LDBUCHP125 | 125 | 140 | 315/345 | 141/152 | 436/462 | 175 | 250 | 210 | 184 | 3 | 8-Φ18 | LD125P/LD140SK |
| LDBUCHP150 | 150 | 140 | 345/409 | 152/172 | 466/543 | 190 | 285 | 240 | 211 | 3 | 8-Φ22 | LD140P/LD160SK |
| LDBUCHP200 | 200 | 152 | 409/438 | 172/187 | 593/665 | 215 | 340 | 295 | 266 | 3 | 12-Φ22 | LD160P/LD190SK |
| LDBUCHP250 | 250 | 165 | 438/550 | 187/215 | 682/752 | 265 | 405 | 355 | 319 | 3 | 12-Φ26 | LD190P/LD210SK |
| LDBUCHP300 | 300 | 178 | 550/600 | 215/240 | 725/772 | 305 | 460 | 410 | 370 | 4 | 12-Φ26 | LD190P/LD210SK |
| LDBUCHP350 | 350 | 190 | 600/633 | 240/262 | 832/880 | 340 | 520 | 470 | 429 | 4 | 16-Φ26 | LD210P/LD240SK |
| LDBUCHP400 | 400 | 216 | 633/730 | 262/330 | 862/968 | 360 | 580 | 525 | 480 | 4 | 16-Φ30 | LD240P/LD270SK |
| LDBUCHP450 | 450 | 222 | 633/1700 | 262/440 | 945/1005 | 400 | 640 | 585 | 548 | 4 | 20-Φ30 | LD270P/AW20S |
| LDUBCHP500 | 500 | 229 | 730/1700 | 330/440 | 1058/1060 | 430 | 715 | 650 | 609 | 4 | 20-Φ33 | AW20S/AW25S |
| LDBUCHP600 | 600 | 267 | 1180/1700 | 365/440 | 1108/1195 | 490 | 840 | 770 | 720 | 5 | 20-Φ36 | AW25/AW35S |
| LDBUCHP700 | 700 | 292 | 1320/1970 | 440/480 | 1170/1255 | 555 | 910 | 840 | 794 | 5 | 24-Φ36 | AW28/AW35S |
| LDBUCHP800 | 800 | 318 | 1430/2700 | 480/560 | 1325/1365 | 620 | 1025 | 950 | 901 | 5 | 24-Φ39 | AW28/AW35S |
| Main external connection dimensions D643H(F、Y)-PN25(2.5MPA) | ||||||||||||
| Model | DN | L | L1 | L2 | ~H | H1 | D | D1 | D2 | f | n-Φd | Actuator model |
| LDBUCHP50 | 50 | 108 | 159/211 | 83/95 | 277/205 | 65 | 165 | 125 | 99 | 3 | 4-Φ18 | LD063P/LD083SK |
| LDBUHP65 | 65 | 112 | 211/248 | 95/107 | 287/325 | 75 | 185 | 145 | 118 | 3 | 8-Φ18 | LD075P/LD083SK |
| LDBUCHP80 | 80 | 114 | 248/269 | 107/123 | 365/391 | 85 | 200 | 160 | 132 | 3 | 8-Φ18 | LD083P/LD105SK |
| LDBUCHP100 | 100 | 127 | 269/315 | 123/141 | 420/457 | 130 | 235 | 190 | 156 | 3 | 8-Φ22 | LD105P/LD125SK |
| LDBUCHP125 | 125 | 140 | 315/345 | 141/152 | 436/462 | 175 | 270 | 220 | 184 | 3 | 8-Φ26 | LD125P/LD140SK |
| LDBUCHP150 | 150 | 140 | 409/438 | 172/187 | 466/543 | 190 | 300 | 250 | 211 | 3 | 8-Φ26 | LD140P/LD160SK |
| LDBUCHP200 | 200 | 152 | 438/550 | 187/215 | 593/665 | 215 | 360 | 310 | 274 | 3 | 12-Φ26 | LD160P/LD190SK |
| LDBUCHP250 | 250 | 165 | 550/600 | 215/240 | 682/752 | 265 | 425 | 370 | 330 | 3 | 12-Φ30 | LD190P/LD210SK |
| LDBUCHP300 | 300 | 178 | 600/633 | 240/262 | 702/820 | 305 | 485 | 430 | 389 | 4 | 16-Φ30 | LD190P/LD210SK |
| LDBUCHP350 | 350 | 190 | 633/730 | 262/330 | 832/938 | 340 | 555 | 490 | 448 | 4 | 16-Φ33 | LD210P/LD240SK |
| LDBUCHP400 | 400 | 216 | 633/1700 | 262/440 | 910/968 | 360 | 620 | 550 | 503 | 4 | 16-Φ36 | LD240P/LD270SK |
| LDBUCHP450 | 450 | 222 | 730/1700 | 330/440 | 1005/1010 | 400 | 670 | 600 | 548 | 4 | 20-Φ36 | LD270P/AW20S |
| LDUBCHP500 | 500 | 229 | 730/1700 | 330/440 | 1058/1065 | 430 | 730 | 660 | 609 | 4 | 20-Φ36 | AW20S/AW25S |
| LDBUCHP600 | 600 | 267 | 1320/1970 | 440/480 | 1110/1195 | 490 | 845 | 770 | 720 | 4 | 20-Φ39 | AW25/AW35S |
| LDBUCHP700 | 700 | 292 | 1430/2700 | 480/560 | 1255/1295 | 555 | 960 | 875 | 820 | 5 | 24-Φ42 | AW28/AW35S |
| LDBUCHP800 | 800 | 318 | 1950/2700 | 560/580 | 1325/1365 | 620 | 1085 | 990 | 928 | 5 | 24-Φ48 | AW28/AW35S |
Note:
The length of the ball valve structure and the size of the connecting flange are designed and manufactured according to JB/T79 standards or user requirements.
The actuator models * * */* * are respectively pneumatic actuator double acting/single acting (spring reset).
The actuator models adapted to different valve torques and media may vary, and the relevant dimensions may change accordingly.
The above actuator configuration and data all use soft sealed (F) valves. Please consult our company for the configuration and data of hard sealed valves.
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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.