Pneumatic emergency shut-off valve

PRODUCTS > Air control valve > Pneumatic emergency shut-off valve

Pneumatic emergency shut-off valve

产品型号:ZMQ
公称通径:DN15~200
公称压力PN(MPa):1.0、1.6、4.0、6.4
shared:

Technical Data

 Nominal diameter DN(mm)

15

20

25

32

40

50

65

80

100

125

150

200

 KV

Rated flow coefficient


Single seat, double seat

5

7

11

20

30

48

75

120

190

300

480

760

 Sleeve


11

20

30

48

75

120

190

300

480

760

 Nominal pressure PN(MPa)

1.0、1.6、4.0、6.4

 Rated stroke(mm)

8

12

20

25

40

50

Effective area

(cm2 )

ZMQ Type

100

200

400

600

1000

ZSQ  Type

100

125

160

250


Allowable leakage

 Hard seal 1/h


General: 10-4  X valve rated capacity; Strict type: single, double seat: 1.2 x10-7, sleeve 5x10-6  X valve rated capacity

 Soft seal

VI  Grade VI

 

 

(MPa) Allowable differential pressure

ZMQ P N

6.4

5.09

2.91

1.85

2.18

1.33

1.52

0.99

0.62

0.60

0.69

0.39

ZMQ P N

6.4

6.4

3.88

2.47

2.91

1.77

2.03

1.32

0.83

0.80

0.92

0.52

ZSQ P N

6.4

6.1

3.5

2.3

3.0

1.9

1.9

1.5

0.93

0.84

0.65

0.47

Z M S QM

 Nominal pressure

(KPa)

Signal pressure

ZMQ

0 (Or )250

ZSQ

0 (Or ) 400~ 600


(1) Performance index of ZMQ pneumatic film cut-off valve: GB/ T4213-92; (2) Allows the differential values in the table if is greater than the nominal pressure, nominal pressure value, less than or equal to the nominal pressure values are the same; (3) Permitted for use standard cylinder values in the table, can improve allowed with different cylinder pressure difference.


Main Outline Connection Dimention

 Nominal diameter(DN)

15

20

25

32

40

50

65

80

100

125

150

200

A

Φ196

Φ232

Φ308

394

Φ498

 

L

PN64

150

150

160

180

200

230

290

310

350

400

480

600

PN16、40

206

206

210

230

251

286

311

337

394

450

508

650

 

L1

PN16、40


150

160

180

200

230

290

310

350

400

480

600

PN64


206

210

230

251

286

311

337

394

450

508

650

H

285

268

270

280

280

285

365

380

385

645

745

790

Weight(kg)

10

10

12

15

18

23

35

45

60

75

90

120