Product Detail
Electric Single-seat Control Valve--Classic ZAZP Type
Electric Single-seat Control Valve--Classic ZAZP Type
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Product Details

Product features:

·ZAZP series of single 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 ZAZP series of single-seat control valve.

·The leakage of Single seat control valve is minimal,so it's a good choice for little leakage requirements of customers.

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 forms : electrical power on or off

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 or 0 ~ 10mA DC;

·Input channel resistance: 250 ohms;

·The basic error: ± 2.5%;

·Dead: ≤3% (Can be adjusted according to system requirements);

· Power supply voltage: single phase 220V 50Hz;

· Working temperature: -10 ℃ ~ + 55 ℃

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

BELLAZP, ZAZP single-seat valve Specification table

Nominal diameter

DN

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

match DKJ actuator

DKZ-4100

DKZ-4200

DKZ-4300

DKZ-5400

DKZ-5500

DKZ-5600

match BELLactuator

BELL-A+Z64

BELL-A+Z160

Rated travel mm

10

16

25

40

60

100

Flow characteristics

equal percentage            linear

Function style

volt on                         volt off      

Temperature range

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

Note: Large size single-seat control valve can be customized according to user requirements.

About description of actuator,   please refer to "Valve Actuator" section.


Size chart (with DKZ straight stroke electric actuator)


     



                                                                                                               Unit:mm

DiameterDN

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

671

685

691

703

718

809

812

816

893

901

940

1395

1464

Thermal Fin type

777

791

797

809

824

964

967

972

1076

1084

1123

1697

1710

B

596

596

596

596

596

596

596

596

596

596

596

616

616

C

232

232

232

232

232

232

232

232

232

232

232

232

232

weight Kg

52

54

55

67

71

113

132

146

175

231

365

485

535


Note: Large diameter single seat control valve can be customized according to user requirements.


Basic dimensions of pipe connecting Flange: cast iron body PN1.6 press 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