Product features of electric straight through single seat control valve
ZAZP series electric straight through single seat regulating valve is composed of DKZ series straight stroke electric actuator and straight through single seat valve. It is powered by single-phase AC 220 V power supply, receives 0 ~ 10 mA or 4 ~ 20 mA DC signal, and automatically controls the opening of regulating valve to achieve continuous regulation of process parameters such as pressure, flow and liquid level of fluid in pipeline.
Main performance specifications
1. Product model
| Product model | ZAZP-16 | ZAZP-40 | ZAZP-64 | ZAZP-100 |
| - | - | ZAZP-64G | ZAZP-100G |
2. Main technical parameters
| Nominal diameter£¨mm£© | G3/4″ | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||||||||
| Seat diameter£¨mm£© | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15 | 20 | 26 | 32 | 40 | 50 | 66 | 80 | 100 | 125 | 150 | 200 |
| Rated flow coefficient Kv | 0.08 | 0.12 | 0.2 | 0.32 | 0.5 | 0.8 | 1.2 | 2 | 3.2 | 5 | 8 | 12 | 20 | 32 | 50 | 80 | 120 | 200 | 280 | 450 |
| Flow characteristics | straight line | Straight line, equal percentage | ||||||||||||||||||
| Nominal pressure£¨MPa£© | 10 | 1.6¡¢ 4.0¡¢ 6.4 | ||||||||||||||||||
| Connection type | Pipe thread connection G3/4 | Flange connection:PN1.6¡¢ 4.0¡¢ 6.4 According to JB / t79 standard | ||||||||||||||||||
| Actuator model | ZAZ-25 |
ZAZ-25 DKZ-310 |
DKZ-310 | DKZ-410 | DKZ-410 | |||||||||||||||
| Extraction thrust£¨N£© | 250 |
250 4000 |
4000 | 6400 | 6400 | |||||||||||||||
| trip L(mm) | 10 | 16 | 25 | 40 | 60 | |||||||||||||||
| Total travel time£¨s£© | 20 |
20 8 |
12.5 | 20 | 32 | 37 | ||||||||||||||
| Mode of action | Electric open (k) commonly used; electric close type£¨B£© | |||||||||||||||||||
| Input signal | 0~10mA 4~20mA DC | |||||||||||||||||||
| Power supply | 220V;50~60Hz | |||||||||||||||||||
| Inherent adjustable ratio R | 30:1 | |||||||||||||||||||
Main technical performance index
| project | Technical performance index |
| Basic error % | ¡Ü¡À5 |
| Return difference % | ¡Ü3 |
| dead zone % | ¡Ü5 |
| Leakage | 0.01% ¡Á Rated capacity of valve |
| Error of rated flow coefficient % | When kV ¡Ü 6.3, it is ¡Ü¡À 15 |
Material of main parts of electric straight through single seat control valve
| body material | Material grade | Nominal pressure£¨MPa£© | Applicable temperature range£¨¡æ£© | |
| Normal temperature type | Hot plate type | |||
| cast iron | HT200 | 1.6 | -20~200 | - |
| cast steel | ZG230~450 | 4.0¡¢ 6.4 | -40~250 | -40~450 |
| Cast stainless steel | ZG1Cr18Ni9TiZG0Cr18Ni12Mo2Ti | 4.0¡¢ 4.6 | -40~250 | -60~450 |
Allowable differential pressure
| Nominal diameter£¨mm£© | G3/4″ | 20 | ||||||||
| Seat diameter£¨mm£© | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15 | 20 |
| Allowable differential pressure£¨MPa£© | Nominal pressure value | 4.9 | 3.7 | 2.4 | 1.6 | 1.1 | 0.6 | |||
| Nominal pressure£¨mm£© | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| Allowable differential pressure£¨MPa£© | PN | 5.0 | 2.8 | 1.7 | 1.7 | 1.0 | 0.6 | 1.1 | 0.7 | 0.4 |
Drawing of electric straight through single seat control valve
Main connection dimensions
| Nominal diameter£¨mm£© | A¡ÁB | L | H1 | H2 | |||
| PN1.6 | PN4.0 | PN6.4 | Normal temperature type | Hot plate type | |||
| G3/4″ | ¦µ160 | 391 | 478 | 32 | |||
| 20 | 230¡Á460 | 180 | 190 | 190 | 653 | 804 | 65 |
| 25 | 185 | 190 | 200 | 665 | 816 | 99 | |
| 32 | 200 | 210 | 210 | 671 | 822 | 105 | |
| 40 | 220 | 230 | 235 | 683 | 834 | 116 | |
| 50 | 230¡Á530 | 250 | 255 | 265 | 698 | 849 | 131 |
| 65 | 275 | 285 | 295 | 789 | 949 | 165 | |
| 80 | 300 | 310 | 320 | 792 | 852 | 173 | |
| 100 | 350 | 355 | 370 | 796 | 956 | 177 | |
| 125 | 260¡Á630 | 410 | 425 | 440 | 847 | 1062 | 225 |
| 150 | 450 | 460 | 475 | 855 | 1070 | 233 | |
| 200 | 550 | 560 | 570 | 894 | 1109 | 272 | |
