Product Features
· BELLAZP series of single-seat control valve with BELL Linear actuator electric actuator, adjustment of high precision, and has a fault alarm function
· According to user needs, BELLAZP series of single-seat control valve can also increase the locally panel display and remote control settings.
· Single-seat control valve leakage is minimal, is a good choice for customers who have high requirement for leakage.
The main parameters
Body material: cast iron, cast steel, cast stainless steel, etc.
Pressure rating: 1.6Mpa 4.0Mpa 6.4Mpa
Connection: flange connection according to JB79-59
temperature range::Normal temperature type -20—230℃ Fin type -60—450℃
Effect form: Electric to open or Electric to close
Flow characteristics: Equal percentage, linear
Leakage: single-seat valve: 0.01% × rated Kv
The main parameters of the actuator
·Input, output signal::4—20mA DC；
· Input channel resistance: 250 ohms
· Basic error: ± 1%;
· Dead: 0.5%--3% (adjusted according to system requirements)
· Power supply voltage: Three-phase 380V 50Hz
single phase 220V 50Hz (other power can be customized)；
· Working temperature : Integral -10℃～+55℃,Discrete-25℃～+70℃ ；
· Working environment humidity: ≤85%,ambient air does not contain corrosive properties
· Protection class : bus type, intelligent IP67;
· Communication Interface: bus line with international standard protocol PROFIBUS-DP.
BELLAZP, ZAZP single-seat valve Specification table
| Nominal diameterDN |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| Spool diameter (mm) |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| Rated flow coefficient Kv |
1.2 |
2 |
3.2 |
5 |
8 |
12 |
20 |
32 |
50 |
80 |
120 |
200 |
280 |
450 |
700 |
1100 |
| Nominal pressurePN MPa |
1.6 4 6.4 |
| with DKZ actuator type |
DKZ-4100 |
DKZ-4200 |
DKZ-4300 |
DKZ-5400 |
DKZ-5500 |
DKZ-5600 |
| with BELL actuator type |
BELL-A+Z64 |
BELL-A+Z160 |
| Rated travel (mm) |
10 |
16 |
25 |
40 |
60 |
100 |
| Flow characteristics |
Equal percentage Linear |
| Mode of action |
electric to open electric to close |
| temperature range |
Normal temperature -20～200℃ Fin-type -60～450℃ |
Note: Large diameter single-seat control valve can be customized according to user requirements.
Overall dimensions diagram (with BELL Linear actuator electric actuator)
| Nominal diameter DN |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| L |
1.6MPa |
181 |
184 |
184 |
222 |
254 |
276 |
298 |
352 |
415 |
451 |
600 |
650 |
740 |
| 4.0MPa |
194 |
197 |
197 |
235 |
267 |
292 |
317 |
368 |
425 |
473 |
610 |
670 |
770 |
| 6.4MPa |
206 |
210 |
210 |
251 |
286 |
311 |
337 |
394 |
435 |
508 |
650 |
690 |
800 |
| H |
Normal temperature |
641 |
655 |
661 |
743 |
758 |
799 |
802 |
806 |
857 |
865 |
904 |
930 |
955 |
| Fin-type |
777 |
791 |
797 |
871 |
886 |
962 |
965 |
969 |
1054 |
1062 |
1101 |
1126 |
1150 |
| B |
407 |
407 |
407 |
460 |
460 |
460 |
460 |
460 |
460 |
460 |
460 |
460 |
460 |
| C |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
280 |
Note: Large diameter single-seat control valve can be customized according to user requirements.
Takeover Flange basic dimensions: cast iron body PN1.6 according to JB78-59
Steel body PN4.0, PN6.4 according to JB79-59
