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CN | EN

Double seat control valve (electric)

Technical Parameters

Product model: ZAZN
Nominal diameter: DN20~300mm
Nominal pressure: PN1.6~6.4MPa
Working temperature: -40~230°C (normal temperature type), heat sink type 230~450°C (medium temperature type), special order -100~600°C
Main materials: WCB (ZG230-450), ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti CF8 CF8M
Applicable medium: liquid, gas, steam, etc
Flange size: in line with JB78-59, JB79-59 standards, can be according to JB/79.1-94, JB, ANSI, JIS, DIN and other standards

Product Details

Product overview

Electric double-seat regulating valve is composed of DKZ type straight electric actuator and straight-through low-flow resistance double-seat valve, double-seat double-guided structure, the valve core is stable and reliable in the process of displacement, there are two valve seats and two plunger-shaped spools in the valve body, the fluid medium flows out through the upper and lower spool valve seats, with large flow, large allowable pressure difference, small unbalanced force, is a balanced structure double-seat valve, suitable for not very clean medium and leakage requirements are not strict occasions. It is widely used in the automatic adjustment and remote control of industrial production processes such as chemical, petroleum, metallurgy, power station, textile, papermaking and pharmaceutical.


             電動(dòng)雙座調(diào)節(jié)閥(圖6)



Main Outline Connection Dimensions

Nominal diameter
DN
A×B
L
H
H1
ZAZN two-seater
PN1.6
PN4.0
PN6.4
normal type
Hot plate type
ZAZP
ZAZN
20
230×460
180
185
190
/
/
91
/
25
185
190
205
670
820
112
104
32
200
210
220
673
823
118
107
40
220
230
240
693
843
129
126
50
250
255
265
698
848
144
131
65
230×530
275
285
295
799
959
175
175
80
305
310
325
809
969
191
190
100
350
355
370
821
981
195
202
125
260×630
410
425
440
872
1087
243
250
150
450
460
475
882
1097
251
260
200
550
560
570
924
1139
290
302
250
670
690
750
1156
1368
380
422
300
740
785
815
1215
1427
435
484

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