WCB CF8 Electric Straight Through Dual Seat Pressure Regulating
Control Valve
Product introduction:
ZDLN electronic electric straight through double seat regulating
valve adopts a double guide structure and is equipped with a 9610L
series electronic straight stroke electric actuator. It has the
advantages of compact structure, light weight, sensitive action,
large valve capacity, precise flow characteristics, and convenient
disassembly and assembly. Widely used for precise control of media
such as gases, liquids, and vapors, it is true that process
parameters such as pressure, flow rate, temperature, and liquid
level are maintained at the given values. Especially suitable for
media with large pressure difference, allowable leakage, and not
very clean conditions.
There are various types of ZDLN electronic electric straight
through double seat regulating valves, including standard type,
bellow sealing type, jacket insulation type, etc. The nominal
pressure rating of the product includes PN16, 40, and 64; The
nominal diameter range is DN25-400. Applicable fluid temperatures
range from -250 ℃ to+560 ℃ in various grades. The leakage standard
is level II or IV. The flow characteristic is linear or equal
percentage
Product technical parameter:
| DN(mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 400 |
Rated flow coefficient
Kv | Linear | 12.1 | 19.4 | 30.3 | 48.3 | 75.9 | 121 | 193.6 | 302.5 | 484 | 759 | 1210 | 1936 | 2920 |
| Equal percentage | 11 | 17.6 | 27.5 | 44 | 69.3 | 110 | 176 | 275 | 440 | 693 | 1100 | 1760 | 2700 |
| Stroke L(mm) | 16 | 25 | 40 | 60 | 120 |
| Pressure nominal PN(MPa) | 1.6,4.0,6.4 |
| Inherent flow characteristics | Linear and equal percentage |
| Inherent adjustment ratio R | 50:1 |
| Signal range(mA.DC) | 0～10,4～20 |
| Power supply voltage | 220V,50Hz |
| Action mode | In case of malfunction: fully open, fully closed, self-locking
position |
| Leakage allowable(1/h) | 10-3×rated valve capacity |
Working temperature
t( ℃) | Normal temperature | -20～200,-40～250,-60～250 |
| Heat dissipation | -40～450,-60～450 |
| High temperature | 450～650 |
| Low temperature | -60～-100,-100～-200,-200～250 |
Product features:
1, Dual seat structure
The straight through dual seat regulating valve adopts a dual seat
structure, which can balance the pressure of two sealing surfaces,
thereby reducing sealing surface wear and improving sealing
performance. The double seat structure can also withstand larger
flow rates, which is beneficial for reducing pressure loss and
improving flow flux.
2, High traffic
The flow path of a straight through dual seat regulating valve is
generally shorter, with a larger flow cross-sectional area, which
can achieve a larger flow flux and is suitable for high flow
applications.
3, Wide adjustment range
The direct dual seat regulating valve has a wide range of
adjustment and can be used for regulating various media and working
conditions. And it has high adjustment accuracy, fast response
speed, and can achieve precise flow regulation.
4, Wide applicability
Direct dual seat regulating valves are suitable for various media,
including liquids, gases, vapors, etc. And it has good control and
stability performance, widely used in fields such as petroleum,
chemical, metallurgy, power, heating, etc.
In short, the straight through dual seat control valve adopts a
dual seat structure, with large flow rate, wide adjustment range,
and wide applicability, making it an excellent control valve.
Widely applied in various fields, it plays an important role in
achieving flow regulation.
