
Pneumatic Diaphragm Single Seat Control Valve adopts a top-guided structure, compact design, and features double balanced valve body channels. It offers stable pressure drop loss, large flow capacity, wide adjustable range, and high flow characteristic accuracy.
It is suitable for media with small working pressure differences and strict leakage requirements.

| Name of parts | Body | Seat | Filler | Diaphragm |
|---|---|---|---|---|
| Material | ZG230–450, ZG1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, etc. | 1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, F4, etc. | Polytetrafluoroethylene, flexible graphite | NBR nylon cloth |
L (mm)
| Nominal diameter (mm) | JIS 10K FF / ANSI 125 FF / ANSI 150 RF / JPI 150 RF / PN1.6MPa | JIS 16K RF | JIS 20K RF / ANSI 300 RF / JPI 300 RF / PN4.0MPa | JIS 40K RF / ANSI 600 RF / JPI 600 RF / PN6.4MPa | ANSI 150 RJ / JPI 150 RJ | ANSI 300 RJ / JPI 300 RJ | ANSI 600 RJ / JPI 600 RJ | JIS 16K LG | JIS 20K LG | JIS 30K LG | ANSI 300 LG / JPI 300 LG | ANSI 600 LG / JPI 600 LG | ANSI 150 SW/BW | ANSI 300 SW/BW | ANSI 600 SW/BW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 222 | 231 | 235 | 251 | 235 | 248 | 251 | 235 | 236 | 248 | 244 | 248 | 254 | 251 | 251 |
| 50 | 254 | 263 | 267 | 286 | 267 | 283 | 289 | 265 | 267 | 276 | 276 | 283 | 286 | 286 | 286 |
| 65 | 276 | 288 | 292 | 311 | 289 | 308 | 314 | 290 | 292 | 303 | 302 | 308 | 311 | 311 | 311 |
| 80 | 298 | 313 | 317 | 337 | 311 | 333 | 340 | 310 | 317 | 326 | 327 | 333 | 337 | 337 | 337 |
| 100 | 352 | 364 | 368 | 394 | 365 | 384 | 397 | 360 | 368 | 379 | 378 | 391 | 394 | 394 | 394 |
| 150 | 451 | 465 | 473 | 508 | 464 | 489 | 511 | 475 | 473 | 486 | 483 | 505 | 473 | 508 | 508 |
| 200 | 543 | 560 | 568 | 610 | 556 | 584 | 613 | 570 | 568 | 580 | 578 | 606 | 568 | 610 | 610 |
Dimensions & Height
| Nominal diameter (mm) | 40 | 50 | 65 | 80 | 100 | 150 | 200 |
|---|---|---|---|---|---|---|---|
| Standard type H (mm) | 425 | 427 | 575 | 580 | 610 | 785 | 1090 |
| Extended I H (mm) | 590 | 595 | 745 | 755 | 810 | 1020 | 1350 |
| Extended II H (mm) | 705 | 710 | 880 | 900 | 915 | 1250 | 1580 |
| Extended III H (mm) | 945 | 950 | 1130 | 1135 | 1150 | 1385 | 1710 |
| H1 (mm) | 70 | 80 | 88 | 98 | 113 | 170 | 220 |
| D (mm) | 285 | 285 | 285 | 360 | 360 | 470 | 470 |
Weight (kg)
| Standard | 40 | 50 | 65 | 80 | 100 | 150 | 200 |
|---|---|---|---|---|---|---|---|
| ANSI 125, 150, JIS 10K | 35 | 41 | 62 | 75 | 92 | 201 | 276 |
| ANSI 300, JIS 16K, 20K, 30K | 40 | 46 | 65 | 83 | 100 | 233 | 339 |
| ANSI 600, JIS 40K | 48 | 51 | 82 | 105 | 135 | 283 | 459 |
| Welded SW | 42 | 48 | 67 | 88 | 97 | 223 | 330 |
Pneumatic Diaphragm Three way Control Valve is a special control valve used for three-way regulation. It offers high control accuracy and stable, reliable operation.
The mixing (confluence) type is mainly used to combine two fluids into a third fluid, while the diverting (split) type is used to divide one fluid into two streams.
This product can replace two sets of single-seat or double-seat regulating valves that would otherwise be used in combination. It is suitable for regulating and controlling liquids, gases, steam, and other media.

| Name of parts | Body | Seat | Filler | Diaphragm |
|---|---|---|---|---|
| Material | ZG230–450, ZG1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, etc. | 1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, F4, etc. | Polytetrafluoroethylene, flexible graphite | NBR nylon cloth |
| Nominal diameter (mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
|---|---|---|---|---|---|---|---|---|---|---|
| L (PN 1.6 MPa) | 185 | 200 | 220 | 250 | 275 | 300 | 350 | 410 | 450 | 550 |
| L (PN 4.0 MPa) | 190 | 210 | 230 | 255 | 285 | 310 | 355 | 425 | 460 | 560 |
| L (PN 6.4 MPa) | 200 | 210 | 235 | 265 | 295 | 320 | 370 | 440 | 475 | 570 |
| H1 (PN 1.6 MPa) | 140 | 150 | 160 | 180 | 200 | 220 | 220 | 256 | 278 | 322 |
| H1 (PN 4.0 MPa) | 150 | 160 | 170 | 190 | 220 | 232 | 256 | 295 | 313 | 372 |
| H1 (PN 6.4 MPa) | 160 | 170 | 180 | 200 | 220 | 242 | 266 | 300 | 318 | 382 |
| H (Standard) | 435 | 441 | 465 | 480 | 584 | 585 | 575 | 762 | 772 | 792 |
| H (Heat dissipation) | 565 | 574 | 595 | 610 | 631 | 748 | 738 | 961 | 971 | 989 |
| D (mm) | 285 | 360 | 470 | |||||||
| Weight (kg) | 72 | 75 | 81 | 88 | 135 | 158 | 190 | 262 | 322 | 450 |
Pneumatic Diaphragm Angle Control Valve features a simple valve body design that is easy to manufacture and avoids defects caused by loose casting in traditional angle valves. It is equipped with a compact pneumatic diaphragm actuator.
The actuator provides stable and reliable operation, a simple flow path, and good anti-blocking performance. The valve is suitable for regulating high-viscosity media, as well as media containing suspended solids and granular particles, or applications requiring right-angle connections.

| Name of parts | Body | Seat | Filler | Diaphragm |
|---|---|---|---|---|
| Material | ZG230–450, ZG1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, etc. | 1Cr18Ni9Ti, 316, 316L, corrosion resistant alloy, F4, etc. | Polytetrafluoroethylene, flexible graphite | NBR nylon cloth |
| Nominal diameter (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L (PN 1.6 MPa) | 85 | 95 | 115 | 115 | 130 | 145 | 155 | 175 | 200 | 240 | 300 |
| L (PN 4.0 MPa) | 85 | 95 | 115 | 115 | 130 | 145 | 155 | 175 | 200 | 240 | 300 |
| L (PN 6.4 MPa) | 100 | 115 | 130 | 130 | 150 | 170 | 190 | 215 | 250 | 275 | 325 |
| H (Standard) | 413 | 421 | 449 | 468 | 463 | 584 | 623 | 658 | 766 | 796 | 801 |
| H (Heat dissipation) | 543 | 551 | 579 | 598 | 593 | 747 | 786 | 821 | 965 | 995 | 1000 |
| D (mm) | 285 | 360 | 470 | ||||||||
| Weight (kg) | 24 | 33 | 36 | 37 | 41 | 76 | 86 | 104 | 174 | 212 | 310 |
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