Product Detail
Electric Double-seat Control Valve--Introduced BELLAZN Type
Original : 0.00
Product Details

Product Features

· BELLAZN series double seat control valve with BELL electric linear actuator,High precision adjustment, and has a fault alarm function.

·According to user needs, BELLAZN series double seat control valve can also increase the inplace panel display and remote control settings.

· double seat control valve can withstand higher pressure, differential pressure of input and output is large could choose such valves.

Parameters of Automatic Control Valve

The material of valve body: cast iron, cast steel, cast stainless steel and so on.

Pressure grade: 1.6Mpa, 4.0Mpa, 6.4Mpa

Connecting type: Flanged according to JB79-59

Temperature range: normal temperature -20---230ºС   the thermal fin type -60---450ºС

Operation form: electric power on or off

Flow characteristic: equal percentage, linear

Leakage: 0.5%* rating 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 type -10 ℃ ~ + 55 ℃, Discrete type -25 ℃ ~ + 70 ℃;

·Operating humidity: ≤85%, ambient air does not contain corrosive properties;

·Protection class: IP65, bus type, intelligent IP67;

·Communication Interface: bus line with international standard protocol PROFIBUS-DP.

BELLAZN、ZAZN double seated control   valve specification table

Normal diameter DN

25

32

40

50

65

80

100

125

150

200

250

300

Rated flow coefficient   Kv

10

16

25

40

63

100

160

250

400

630

1000

1600

Normal Pressure PN   MPa

1.6            4              6.4

With DKZ actuator

DKZ-4200

DKZ-4300

DKZ-5400

DKZ-5500

DKZ-5600

With BELL actuator

BELL-A+Z64

BELL-A+Z160

Rated travel (mm)

16

25

40

60

100

Flow characteristics

Equal percentage         Linear

10Action mode

electric power on            electric power off

temperature range

Normal temperature type -20~200℃         Thermal fin type -60~450℃


Note: The large-diameter double seat control valve can be customized according to user requirements.

About descriptions of Actuator, please see "Valve Actuator" section.

Size chart (with BELL straight stroke electric actuator)





Diameter DN

25

32

40

50

65

80

100

125

150

200

250

300

350

L

1.6MPa

185

200

220

250

275

300

350

410

450

550

670

770

4.0MPa

190

210

230

255

285

310

355

425

460

560

740

803

6.4MPa

200

210

235

265

295

320

370

440

475

570

750

819

H

Normaltemperature

660

663

753

758

809

819

831

882

892

934

1334

1410

Thermal Fin type

796

799

881

886

972

982

994

1079

1089

1131

1636

1656

B

407

407

460

460

460

460

460

460

460

460

480

480

C

280

280

280

280

280

280

280

280

280

280

280

280

Note: The large-diameter double seat control valve can be customized according to user requirements

The basic dimensions of pipe flange:cast iron body PN1.6 according to   JB78-59

                                     cast Steel body PN4.0, PN6.4 according to JB79-59



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Address :   No. 11, Longhuai Road, Shuangjiang Street, Shuangyuan Economic Development Zone, Beichen District, Tianjin, China

Tel :   86-22-27553780       Fax :   86-22-27529983      E-mail :   FW@bellaut.com