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HOME >> Butterfly Valve >> Double eccentric butterfly valve, PN16
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Double eccentric butterfly valve, PN16

Double eccentric butterfly valve, PN16

The double eccentric butterfly valve with a double eccentric structure design, which allows the butterfly plate to quickly leave from the valve seat after the valve is opened, greatly reducing friction and compression between the butterfly plate and the valve seat, reducing opening resistance and improving the service life of the valve seat. Double eccentric butterfly valves are suitable for many fields such as water plants, power plants, steel mills, and chemical industries. Valves can be installed vertically or horizontally, easy to assemble and disassemble and maintenance.



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Product Description

The double eccentric butterfly valve with a double eccentric structure design, which allows the butterfly plate to quickly leave from the valve seat after the valve is opened, greatly reducing friction and compression between the butterfly plate and the valve seat, reducing opening resistance and improving the service life of the valve seat. Double eccentric butterfly valves are suitable for many fields such as water plants, power plants, steel mills, and chemical industries. Valves can be installed vertically or horizontally, easy to assemble and disassemble and maintenance.



Technical Parameter:

Design standard

BS　EN593

Flanged conform to

DIN5201 PN16/BS4504 PN16

Working pressure:

PN16

Face to   face

DIN3202 F4/BS5155

Working   Temperature:

-10℃~110℃

EPDM

-10℃~80℃

NBR


Main Material:

7

Key

SS420

14

Main shaft

SS420

6

Stub Shaft

SS420

13

Stuffing Box

Gunmetal LG2

5

Body

Ductile iron

12

Stuffing

EPDM

4

Shaft Bushing

Stainless steel +PTFE

11

Body seal ring

SS304

3

O-ring

EPDM

10

Disc seal ring

EPDM

2

End plate

Ductile iron

9

Retaining Ring

Ductile iron/ SS304

1

Bolts

Steel

8

Disc

Ductile iron

NO.

Parts

Material

NO.

Parts

Material


Dimensions:（mm)

SIZE

L

D2

D

n-￠d

DIN3202 F4

BS5155

6”

DN150

210

140

212

285

8-￠23

8”

DN200

230

152

268

340

12-￠23

10”

DN250

250

165

320

405

12-￠28

12”

DN300

270

178

378

460

12-￠28

14”

DN350

290

190

438

520

16-￠28

16”

DN400

310

216

490

580

16-￠31

18”

DN450

330

222

550

640

20-￠31

20”

DN500

350

229

610

715

20-￠34

24”

DN600

390

267

725

840

20-￠37

28”

DN700

430

292

793

910

24-￠37

32”

DN800

470

318

900

1025

24-￠40

36”

DN900

510

330

1000

1125

28-￠40

40”

DN1000

550

410

1112

1255

28-￠43

48”

DN1200

630

470

1330

1485

32-￠49

56”

DN1400

710

530

1535

1685

36-￠49