Double Flanged Butterfly Valve

Working pressure

10bar/ 16bar

Testing Pressure

Shell:15bar/24bar

Seal:11bar/17.6bar

Working Temperature

-20℃ to 110℃ EPDM Seat

-10℃ to 80℃ NBR Seat

Suitable Media

Water, Oil & Gas

Part

Material

ASTM

Body

Ductile Iron

A536 65-45-12

Disc

Ductile iron

Bronze

Stainless Steel 304

Stainless Steel 316

A536 65-45-12

B148 C95400

A351 CF-8

A351 CF-8M

Shaft

Stainless Steel 316

Stainless Steel 410

Stainless Steel 431

A276 S 316 00

A276 S 410 00

A276 S 431 00

Seat Ring

EPDM/ NBR

Taper Pins

Stainless Steel 304

Stainless Steel 316

Stainless Steel 410

A276 S 304 00

A276 S 316 00

A276 S 410 00

Key

Carbon Steel

O-Ring

EPDM/ NBR

Bushing

Bronze

B62 C83600

DN

mm

50

65

80

100

125

150

200

250

300

350

400

450

inch

2

2-1/2

3

4

5

6

8

10

12

14

16

18

A

80

80

95

114

114

139

175

203

242

250

317

341

B

110

134

131

150

170

180

210

245

276

328

376

407

C

30

30

30

30

30

30

34

34

34

40

52

52

L

108

112

114

127

140

140

152

165

178

190

216

222

DN

mm

500

600

700

800

900

1000

1200

-

-

-

-

-

inch

20

24

28

32

36

40

48

-

-

-

-

-

A

367

432

488

544

615

669

794

-

-

-

-

-

B

433

508

560

620

692

735

917

-

-

-

-

-

C

64

70

95

95

130

130

150

-

-

-

-

-

L

229

267

292

318

330

410

470

-

-

-

-

-