Pneumatic knife gate valve PZ673H with compact wafer design, DN50-1200mm, JB/T8691 standard, rubber or PTFE seat for slurry and bulk material flow control.
Pneumatic Knife Gate Valve



Pneumatic knife gate valve PZ673H with compact wafer design, DN50-1200mm, JB/T8691 standard, rubber or PTFE seat for slurry and bulk material flow control.



| Design Basis | GB Standard | ANSI Standard |
| Design Standard | JB/T8691-1998 | ANSI B16.34 |
| Connecting Standard | GB/9113, JB/T79 | ANSI B16.5 |
| Test &inspection | JB/T9092 | API 598 |
Note: The structural length and connecting flange size of the gate valve series can be designed and manufactured as per users’requirements.
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No. | Name of parts | Material | ||
| C | P | R | |||
| 1 | Inner Hexagon Screw | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | |
| 2 | Cover | WCB | 1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | |
| 3 | Gasket | PTFE | PTFE | PTFE | |
| 4 | Seat | 1Cr18Ni9Ti or PTFE, Rubber | 1Cr18Ni12Mo2T or PTFE, Rubber | ||
| 5 | Body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | |
| 6 | Packing Material | PTFE, PTFE Nirtile, Rubber or PTFE | PTFE, PTFE Nirtile, Rubber or PTFE | PTFE, PTFE Nirtile, Rubber or PTFE | |
| 7 | Gland | WCB | ZG1Cr¹8Ni9Ti | ZG1Cr18Ni12Mo2Ti | |
| 8 | Shut-off Device | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | |
| 9 | Yoke | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti | |
| 10 | Push-and-pull Rod | 45# Steel Chrome Plating | 45# Steel Chrome Plating | 45# Steel Chrome Plating | |
| 11 | Pneumatic-Actuator | ZTQD Series | |||
Note: The main spare parts and sealed seat material of the gate valve series can be designed as options as per users' special requirements.


| Nominal diameter DN | Main Connection Dimension | |||||||
| L | D | D1 | D2 | Do | N-Th | d | H1 | |
| 50 | 48 | 165 | 125 | 99 | 180 | 4-M16 | Φ18 | 460 |
| 65 | 48 | 185 | 145 | 118 | 200 | 4-M16 | Φ18 | 520 |
| 80 | 51 | 200 | 160 | 132 | 220 | 8-M16 | Φ18 | 570 |
| 100 | 51 | 220 | 180 | 156 | 240 | 8-M16 | Φ18 | 680 |
| 125 | 57 | 250 | 210 | 184 | 260 | 8-M16 | Φ18 | 780 |
| 150 | 57 | 285 | 240 | 212 | 280 | 8-M20 | Φ23 | 850 |
| 200 | 70 | 340 | 295 | 266 | 300 | 8-M20 | Φ23 | 980 |
| 250 | 70 | 395 | 350 | 319 | 340 | 12-M20 | Φ23 | 1140 |
| 300 | 76 | 445 | 400 | 370 | 380 | 12-M20 | Φ23 | 1360 |
| 350 | 76 | 505 | 460 | 430 | 400 | 16-M20 | Φ23 | 1460 |
| 400 | 89 | 565 | 515 | 480 | 450 | 16-M24 | Φ27 | 1630 |
| 450 | 89 | 615 | 565 | 530 | 530 | 20-M24 | Φ27 | 1770 |
| 500 | 114 | 670 | 620 | 582 | 600 | 20-M24 | Φ27 | 1960 |
| 600 | 114 | 780 | 725 | 682 | 600 | 20-M27 | Φ30 | 2245 |
| 700 | 127 | 895 | 840 | 794 | 680 | 24-M27 | Φ30 | 2600 |
| 800 | 127 | 1015 | 950 | 901 | 680 | 24-M30 | Φ33 | 2910 |
| 900 | 203(127) | 1115 | 1050 | 1001 | 28-M30 | Φ33 | 3200 | |
| 1000 | 216(149) | 1230 | 1160 | 1112 | 28-M33 | Φ36 | 3550 | |
| 1200 | 254(156) | 1455 | 1380 | 1328 | 32-M36 | Φ39 | 4250 | |
Note: The relative sizes are subject to change depending on different valve torques, mediums and actuator models.

| Nominal diameter DN | Main Connection Dimension | ||||||||
| DN | in | L | D | D1 | D2 | Do | N-Th | d | H1 |
| 50 | 2" | 48 | 152 | 120 | 92 | 180 | 4-M5/8-11 | Φ19 | 460 |
| 65 | 2.5" | 48 | 178 | 139.5 | 105 | 200 | 4-M5/8-11 | Φ19 | 520 |
| 80 | 3" | 51 | 190.5 | 152.5 | 127 | 220 | 4-M5/8-11 | Φ19 | 570 |
| 100 | 4" | 51 | 220.5 | 190.5 | 157 | 240 | 8-M5/8-11 | Φ19 | 680 |
| 125 | 5" | 57 | 254 | 216 | 186 | 260 | 8-M3/4-10 | Φ22 | 780 |
| 150 | 6" | 57 | 279 | 241.5 | 216 | 280 | 8-M3/4-10 | Φ22 | 850 |
| 200 | 8" | 70 | 343 | 298.5 | 270 | 300 | 8-M3/4-10 | Φ22 | 980 |
| 250 | 10" | 70 | 406 | 362 | 324 | 340 | 12-M7/8-9 | Φ25 | 1140 |
| 300 | 12" | 76 | 483 | 432 | 381 | 380 | 12-M7/8-9 | Φ25 | 1360 |
| 350 | 14" | 76 | 533 | 476 | 413 | 400 | 12-M1-8 | Φ29 | 1460 |
| 400 | 16" | 89 | 597 | 539.5 | 470 | 450 | 16-M1-8 | Φ29 | 1630 |
| 450 | 18" | 89 | 635 | 578 | 533 | 530 | 16-M11/8-7 | Φ32 | 1770 |
| 500 | 20" | 114 | 699 | 635 | 584 | 600 | 20-M11/8-7 | Φ32 | 1960 |
| 600 | 24" | 114 | 813 | 749.5 | 691 | 600 | 20-M11/4-7 | Φ35 | 2245 |
| 750 | 30" | 144 | 984 | 914.5 | 857 | 680 | 28-M11/4-7 | Φ35 | 2120 |
| 900 | 36" | 203(127) | 1168 | 1086 | 1022 | 680 | 32-M11/2-6 | Φ41 | 2500 |
| 1000 | 42" | 216(149) | 1346 | 1257.5 | 1193 | 36-M11/2-6 | Φ41 | 2800 | |
| 1200 | 48" | 254(156) | 1511 | 1422.5 | 1358 | 44-M11/2-6 | Φ41 | 3300 | |
Note: The relative sizes are subject to change in response to different valve torques, mediums and actuator models.

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