Marine Center Type Flanged Butterfly Valve

Marine Center Type Flanged Butterfly Valve

Nominal diameter: DN50~DN500

Nominal pressure: PN1.0-1.6MPa, 5K-16K, 150Lb

Body material: cast steel, bronze, stainless steel, ductile iron

Applicable medium: seawater, fresh water, air, crude oil, refined oil

Body type: AF type, BF type, CF type, DF type, QF type, YF type

Working temperature: -40°C~170°C

Connection form: flange

Drive type: handle type, worm gear type, spiral type, hydraulic type



Marine Center Type Flanged Butterfly Valve(图1)


Main external connection dimensions

Nominal Pressure(Mpa)

Nominal Diameter(mm) 

Center-pivoted flanged butterfly valve

AF type

CF type

DF type

QF type

YF type

H

H1

L1

H

H1

L1

H

H1

L1

H

H1

L1

H

H1

L1

 

 

 

 

 

 

 

 

1.0

50

215

80

235

280

80

160

600

80

200

265

80

75

325

80

156

65

235

90

235

295

90

160

615

90

200

348

90

75

345

90

156

80

285

120

235

340

120

160

680

120

250

430

120

75

365

120

156

100

315

130

250

360

130

160

700

130

250

475

130

105

405

130

156

125

355

150

300

395

150

160

738

150

300

510

150

105

485

150

156

150

395

165

350

430

165

180

780

165

300

615

165

105

509

165

156

200




485

196

180

845

195

350

670

195

105

622

195

242

250




570

225

210

940

225

350

775

225

120

698

225

242

300




630

250

210

995

250

400

830

250

120

794

250

305

350




730

280

275

1058

280

400

930

280

140

860

280

305

400




800

310

275

1118

310

400

1000

310

140

908

310

325

450




875

344

275

1218

344

275

1050

395

340

995

344

305

500




960

382

350

1288

382

350

1160

405

380

1011

382

305


Nominal Pressure

(Mpa) 

Nominal Diameter

(mm) 

Structure&flange dimension (ISO standard)

D0

L

D

D1

n

M

 

 

 

 

 

 

 

 

 

 

 

 

1.0

50

160

43

165

125

4

M16

65

160

46

185

145

4

M16

80

160

46

200

160

8

M16

100

160

52

220

180

8

M16

125

160

56

250

210

8

M16

150

220

56

285

240

8

M20

200

220

60

340

295

8

M20

250

300

68

395

350

12

M20

300

300

78

445

400

12

M20

350

380

78

505

460

16

M20

400

380

102

565

515

16

M24

450

380

114

615

565

20

M24

500

380

127

670

620

20

M24




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