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ZDLT electric diaphragm regulating valve
Technical parameters: ZDLT electric diaphragm regulating valve nominal pressure: (Mpa) 1.0 stroke (mm): 10 16 25 40 60 flow characteristics: approxima
Product details
The ZDLT electric diaphragm regulating valve consists of PS series and 3610 series linear electric actuators and diaphragm valves. The electric actuator is an electronic integrated structure with a servo amplifier inside. By inputting control signals (4-20mADC or 1-5VDC) and power supply, the valve opening can be controlled to adjust working parameters such as pressure, flow rate, liquid level, and temperature. It has the characteristics of sensitive action, simple connection, large flow rate, small volume, and high adjustment accuracy. The control accuracy and performance are significantly improved compared to the DKZ type.
The diaphragm valve body flows smoothly, the throttling element is an elastic diaphragm valve, and there is no packing box on the valve cover. Therefore, the flow capacity of the valve is larger than that of a general regulating valve and there is no leakage. It can be used as a shut-off valve within the allowable pressure difference range. This valve is suitable for regulating high viscosity fluids, suspended particles, fiber media, toxic media, and corrosive media.
Main technical parameters：
| Nominal diameter mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | |
| Allowable pressure difference (MPa) | 1.0 | 0.89 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 0.6 | 0.38 | 0.15 | 0.057 | |||
| Rated flow coefficient Kv | 8 | 12 | 16 | 38 | 60 | 68 | 90 | 150 | 300 | 500 | 600 | 1200 | 2000 | |
| Nominal pressure (MPa) | 1.0 | |||||||||||||
| Travel distance (mm) | 10 | 16 | 25 | 40 | 60 | |||||||||
| Traffic characteristics | Approximate quick opening (adjustable) | |||||||||||||
| Flange size | Cast iron flanges according to JB78-59, cast steel flanges according to JB79-59 | |||||||||||||
| Equipped with electric actuator model | PSL | PSL-201 | PSL-202 | PSL-204 | PSL-208 | PSL-312 | ||||||||
| 361L | 361LSA-08 361LXA-08 |
361LSA-20 | 361LSB-30 | 361LSB-50 | 361LSC-65 | |||||||||
| Explosion proof type | 361LXA-20 | 361LXB-30 | 361LXB-50 | |||||||||||
Main technical parameters of the executing agency：
| model | Rated output force N | Speed mm/s | Technical Parameter | ||||
| PSL | 361L | PSL | 361L | PSL | 361L | PSL | 361L |
| 201 | 361LSA-08 361LXA-08 |
1000 | 800 800 |
0.25 | 4.2 4.2 |
Power supply: AC220V 50Hz Input signal: DC4-20mA DC1-5V (Shielded wire for signal line) Output signal: DC4-20mA Protection level: IP67 With handwheel |
Power supply: AC220V 50Hz Input signal: DC4-20mA DC1-5V (Shielded wire for signal line) Output signal: DC4-20mA Protection level: equivalent to IP55 Explosion proof mark: Exd Ⅱ BT4 With handle |
| 202 | 361LSA-20 361LXA-20 |
2000 | 2000 2000 |
0.50 | 2.1 2.1 |
||
| 204 | 361LSB-30 361LXB-30 |
4500 | 3000 3000 |
0.50 | 3.5 3.5 |
||
| 208 | 361LSB-50 361LXB-50 |
8000 | 5000 5000 |
1.00 | 1.7 1.7 |
||
| 312 | 361LSC-65 | 12000 | 6500 | 0.60 | 2.8 | ||
| 325 | 361LSC-99 | 25000 | 10000 | 1.0 | 2.0 | ||
performance index：
| project | Indicator value |
| Basic error% | ≤±3.5 |
| Return difference% | ≤2.5 |
| Dead zone% | ≤3.0 |
| Constant point deviation% | ±2.5 |
| Rated travel deviation% | ±2.5 |
| Pure hysteresis | ≤IS |
| Allowable discharge rate L/H | Rubber diaphragm "0", polytetrafluoroethylene diaphragm is 0.5% x valve rated capacity (water under allowable pressure difference) |
| insulation resistance | Not less than 20M |
| Damping characteristics | No more than 3 and a half weeks |
Combination of valve body lining and diaphragm material：
| Material | Lining material | Diaphragm Material | Usage temperature | application |
| Cast iron HT200 | not have | chloroprene rubber | 0～65℃ | Non corrosive media, water and abrasives, mud media |
| Cast iron HT200 | polytrifluorochloroethylene | VITON | -15～150℃ | Strong acids, strong alkalis, strong oxidants, and general organic solvents are not suitable for mud media |
| Cast stainless steel ZG1Cr18Niti |
not have | VITON | -20～200℃ | Common media such as acid, alkali, organic solvents, etc |
External dimensions：
| Public diameter (mm) | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | |
| L（mm） | 181 | 184 | 222 | 254 | 276 | 298 | 352 | 451 | 600 | 720 | |
| H1（mm） | 67 | 72 | 87 | 92 | 105 | 110 | 127 | 174 | 209 | 300 | |
| Equipped with PSL | H（mm） | 738 | 750 | 765 | 767 | 845 | 857 | 875 | 1025 | 1045 | 1252 |
| D（mm） | 176 | 225 | |||||||||
| Weight (KG) | 15 | 17 | 24 | 29 | 49 | 61 | 82 | 150 | 211 | 370 | |
| Equipped with 361L | H（mm） | 501 | 513 | 650 | 652 | 770 | 782 | 800 | 1080 | 1125 | 1345 |
| D（mm） | 225 | 310 | |||||||||
| Weight (KG) | 23 | 24 | 39 | 44 | 64 | 76 | 97 | 203 | 264 | 418 | |
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