Electric single-seat control valve is featured by good sealing and small leakage. But for the relatively big axial unbalance force of the valve plug, the work pressure shall not be over high.
Electric dual-seat control valve is featured by big rated flow rate, small axial balance force of valve plug, stable operation and big service pressure difference, etc., and so has been widely used. But its leakage is bigger than that of single-seat valve.
Electric sleeve control valve has better stability and resistance to cavitation than the abovementioned two valves.
Relative Parameters
Nominal diameter: 20— 300mm
Nominal pressure: 1.6 Mpa, 4 Mpa, 6.4Mpa
Connection Type: Flange Connection
Valve body material: Cast iron, cast steel, cast stainless steel
Connection way: Flange connection according to JB79-59
Operating temperature range: Normal type: -20° C— +230° C;
Heat dissipation type: -60° C— +450° C
Function form: Electric on-off
Leakage: Single-seat valve 0.01%× Rated Kv
Double-seat valve 0.5%× Rated Kv
Sleeve valve 0.5%× Rated Kv
Type: ZAZP, ZAZN, ZAZM, BELLAZP, BELLAZN, BELLAZM
Application: Automatic control, such as building material, metallurgy, chemical engineering and mine.
|
Nominal diameter mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
|
Valve disc diameter mm |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
|
Rated flux coefficient Kv |
1.2 |
2 |
3.2 |
5 |
8 |
12 |
20 |
32 |
50 |
80 |
120 |
200 |
280 |
450 |
|
Nominal pressure Mpa |
1.6 4 6.4 |
Match DKJ actuator
|
specification |
DKZ-4100 |
DKZ-4200 |
DKZ-4300 |
DKZ-5400 |
DKZ-5500 |
|
Differential pressure Mpa |
6.4 |
4.0 |
4.0 |
4.0 |
3.5 |
2.3 |
2.0 |
1.42 |
1.4 |
0.91 |
0.55 |
0.35 |
0.26 |
0.17 |
|
Match introduced actuator |
specification |
A+Z64 |
|
Differential pressure Mpa |
6.4 |
6.4 |
4.0 |
4.0 |
3.7 |
2.5 |
2.2 |
1.6 |
1.5 |
1.0 |
0.6 |
0.4 |
0.3 |
0.2 |
|
Rated travel mm |
10 |
16 |
25 |
40 |
40 |
|
Flux characteristic |
Equal percentage Beeline |
|
Function style |
Volt on Volt off |
|
Temperature range |
Normal temperature: -20 — +200 degree abstraction of heat: -60 — +450 degree |
China Bell Group professionally serves various industrial production, end users are steel mills, cement plants, power plants, water treatment plants, chemical plants, mines and so on.
Responsed to Chinese government's call firstly, China Bell Group develop towards large international enterprise, now Bell Group has established a comprehensive system of export (including various producing standards, international freight, L/C management, funding, international sales and service teams), already has a large number of international customers.
China Bell Group, adhering to be professional and rigorous, has been producing and providing products of China most influential brands for customers.
Group subsidiaries are:
Tianjin Bell Automatic Instrument Technology Co., Ltd. ----- industrial control valves and actuators expert
Tianjin Beili Mechanical and Electrical Company ----- China authorized agent of Siemens motors.
Beida Mining Equipment Co., Ltd. ---- professional manufacturer of vulcanizing machine
Tianjin Beiao Trading Company ----- SEW manufactured in China and other international brands Exporters
China Bell Group with the subsidiaries, will provide customers with more favorable prices, higher quality products, and warmly welcome international friends negotiation and cooperation.
