Product Detail
Electric Double-seat Control Valve--Classic ZAZN Type
Electric Double-seat Control Valve--Classic ZAZN Type
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Product Details

Product features:

·ZAZN series double seat control valve with DKZ electric actuator, easy for installation and maintenance, economic and applicable.

·If the user's request about the accuracy is not too high, could choose ZAZN series double seat control valve.  

·Double -seat control valve can withstand higher pressure,so it's a good choice when the valve pressure difference is large.

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: room temperature type -20-230 ℃    thermal fin type-60-450 ℃

Action form: electrical power on or off

Flow characteristics: Equal percentage, linear

Leakage: 0.5% × rated Kv

The main parameters of the actuator

·Input, output signal: 4 ~ 20mA DC or 0 ~ 10mA DC;

   Input channel resistance: 250 ohms;

· The basic error: ± 2.5%;

· Dead: ≤3% (could adjust according to system requirements);

   Power supply voltage: single phase 220V 50Hz;

· Working temperature: -10 ℃ ~ + 55 ℃

· Humidity: ≤95%, ambient air does not contain corrosive properties;

BELLAZN, ZAZN double-seat valve Specification table

Nominal 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

Nominal pressure PN MPa

1.6            4              6.4

match DKJ actuator

DKZ-4200

DKZ-4300

DKZ-5400

DKZ-5500

DKZ-5600

match BELL actuator

BELL-A+Z64

BELL-A+Z160

Rated travel mm

16

25

40

60

100

Flow characteristic

                                                                      equal percentage           linear

Action mode

                                                                                 volt on             volt off

Temperature range

                                Normal temperature: -20 — +200 degree            thermal fin type:-60~450degree

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

305

350

410

450

550

670

770

note

4.0MPa

190

210

230

255

285

310

355

425

460

560

740

803

6.4MPa

205

220

240

265

295

325

375

435

475

570

750

819

H

Normal temperature

690

693

713

718

819

829

841

918

928

970

1455

1531

thermal Fin type

796

829

841

846

982

992

1004

1115

1125

1167

1757

1777

B

10596

596

596

596

596

596

596

596

596

596

596

596

C

232

232

232

232

232

232

232

232

232

232

232

232

weight   Kg

58

60

71

75

127

140

177

236

242

433

770

930

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

Basic dimensions of pipe connecting Flange: cast iron body PN1.6 according to JB7859

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




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