Professional Design Worm Gear Flange Type Butterfly Valve - Electric two valve ZKZP – Like Valve Detail:
Product characteristics
1. Excellent material, beautiful appearance and long service life.
2. In the heating system, the change of the opening of the regulating valve is linearly related to the change of the heat dissipation of more radiators, and the regulating range is wide.
3. The valve disc adopts plunger structure with small flow resistance, and has outstanding characteristics of linear or percentage regulation.
4. When the water pipe has been depressurized or cooled, the valve stem seal can be replaced without removing the valve, which is convenient for maintenance.
5. High thrust, suitable for large pressure difference and closing force, with manual adjustment function
6. Anti-fouling, low noise, low leakage rate to <0.02% Kvs
Performance specification
|
Nominal pressure(MPa) |
1.6 |
|
Nominal diameter(mm) |
20~300 |
|
Leakage quantity |
less thanKvs value0.02% |
|
Flow characteristics |
Linear/Percentage |
|
Applicable medium |
Hot and cold water, steam, non-corrosive gases |
|
Applicable temperature°C |
-25~200 |
|
Rated Flow Number |
Kvs=6.5~1800 |
|
relative humidity |
5-90%(Actuator without condensation) |
Major Component Materials
|
Part name |
Material Science |
|
|
DN20-50 mm |
DN50~300mm |
|
|
valve body |
Copper alloy |
QT500-7 |
|
Disc |
Stainless steel |
|
|
Stem |
316L |
|
|
Axle sleeve |
ZCuAI9Mn2 |
|
|
Seal ring |
Fluorine rubber |
|
Design drawings
Threaded Main Dimensions Table
| DN | L | L1 | D | C | H | P | G | |
| mm | inch | |||||||
| 20 | 3/4″ | 100 | 150 | 10 | 57 | 26 | 3/4″ | 11/4″ |
| 25 | 1″ | 105 | 160 | 14 | 59 | 34 | 1″ | 11/2″ |
| 32 | 11/4″ | 105 | 169 | 14 | 60 | 34 | 11/4″ | 2″ |
| 40 | 11/2″ | 130 | 169 | 15 | 73 | 46 | 11/2″ | 21/4″ |
| 50 | 2″ | 150 | 225 | 16 | 83 | 46 | 2″ | 21/2″ |
Flanged Main Dimension Table
| DN(mm) | B | C | H | L1 | K | D | N-ø |
| 50 | 20 | 143 | 39 | 230 | 125 | 165 | 4-19 |
| 65 | 20 | 173 | 60 | 290 | 145 | 185 | 4-19 |
| 80 | 22 | 185 | 60 | 310 | 160 | 200 | 8-19 |
| 100 | 24 | 25 | 93 | 350 | 180 | 220 | 8-19 |
| 125 | 26 | 232 | 102 | 400 | 210 | 250 | 8-19 |
| 150 | 26 | 275 | 120 | 480 | 240 | 285 | 8-23 |
| 200 | 26 | 308 | 164 | 580 | 295 | 340 | 12-23 |
| 250 | 28 | 360 | 210 | 665 | 355 | 405 | 12-28 |
| 300 | 30 | 425 | 280 | 760 | 410 | 460 | 12-28 |
Product detail pictures:
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