butterfly gearbox vfy wg-lg

1VD.HD.S3.02 © Danfoss 09/2013DEN-SMT/SI

Butterfly valves with gear boxVFY-WG, VFY-LG

Data sheet

Ordering

Description Features:• Spline driven one piece shaft connected to

spherically machined disc allows high torque transmission i.e. quick response and minimum back-lash

• Long term reliability due to upper and lower anti-friction bearings

• Safe maintenance: shaft blow out protection with circlip

• Position indicator

Main Data:• DN 50-350• kVS 79-8520 m3/h• PN 16• EPDM Liner• Stainless steel or Polyamid coated disc• Medium:

- Circulation water, drinking water or chilled glycolic water up to 50 %

• Medium Temperature:−10 … 120 °C

• Wafer or Lug connection

• Approvals PED 97/23/CE

Wafer type VFY-WG

Picture DNkVS

PNTmax

Disc Code No.(m3/h) (°C)

XX

X

50 79

16 120 Stainless Steel

065B7440

65 174 065B7441

80 275 065B7442

100 496 065B7443

125 883 065B7444

150 1212 065B7445

200 2500 065B7446

250 3948 065B7447

300 5635 065B7448

350 8520 065B7449

50 79

16 120 Polyamid Coating

065B7430

65 174 065B7431

80 275 065B7432

100 496 065B7433

125 883 065B7434

150 1212 065B7361

200 2500 065B7362

250 3948 065B7363

300 5635 065B7364

350 8520 065B7435

2 VD.HD.S3.02 © Danfoss 09/2013 DEN-SMT/SI

Data sheet Butterfly valves with gear box VFY-WG, VFY-LG

Lug type VFY-LG

Picture DNkVS

PNTmax

Disc Code No.(m3/h) (°C)

XX

XX

DN XXXX XX

50 79

16 120 Stainless Steel

065B7460

65 174 065B7461

80 275 065B7462

100 496 065B7463

125 883 065B7464

150 1212 065B7465

200 2500 065B7466

250 3948 065B7467

300 5635 065B7468

350 8520 065B7469

50 79

16 120 Polyamid Coating

065B7451

65 174 065B7452

80 275 065B7453

100 496 065B7454

125 883 065B7455

150 1212 065B7376

200 2500 065B7377

250 3948 065B7378

300 5635 065B7379

350 8520 065B7456

Ordering

Replacement butterfly valve VFY-WB (wafer type)DN PN Disc Code No.

50

16 Stainless steel

065B7545

65 065B7546

80 065B7547

100 065B7548

125 065B7549

150 065B7550

200 065B7551

250 065B7552

300 065B7553

350 065B7554

50

16 Polyamid coated

065B7382

65 065B7383

80 065B7384

100 065B7385

125 065B7386

150 065B7387

200 065B7388

250 065B7389

300 065B7390

350 065B7391

Replacement Disc VFY-DiscDN PN Disc Code No.

50

16 Stainless steel

065B7567

65 065B7568

80 065B7569

100 065B7570

125 065B7571

150 065B7572

200 065B7573

250 065B7574

300 065B7575

350 065B7576

50

16 Polyamid coated

065B7555

65 065B7556

80 065B7557

100 065B7558

125 065B7559

150 065B7560

200 065B7561

250 065B7562

300 065B7563

350 065B7564

Replacement Liner VFY-LinerDN PN Liner Code No.

50

16 EPDM

065B7582

65 065B7583

80 065B7584

100 065B7585

125 065B7586

150 065B7587

200 065B7588

250 065B7589

300 065B7590

350 065B7591

Replacement gearbox VFY-Gearboxfor DN Code No.

50/65/80/100 065B7595

125/150 065B7596

200 065B7597

250 065B7598

300 065B7599

350 065B7600

Spare parts


Not recommendedPossiblePossibleRecommended


Technical data Type VFY-WG VFY-LG

Nominal diameter DN 50-350

kVS value m3/h 79-8520

Rotation angle 90 °

Leakage rate Acc. to PED 97/23/CE, EN 12266-1, Rate A 1)

Nominal pressure PN 16

Medium Circulation water, Glycolyc water up to 50 % or drinking water

Medium temperature °C −10 ... 120

Connection Wafer (centering lugs) Lug (Tapped lugs)

Mounting mounting between flanges mounting deadline

Material

BodyCast iron EN GJL 250 (DIN GG25) DN 50-300 Cast iron EN GJL 250 (DIN GG25) DN 50-150

Ductile iron (DIN GGG40) DN 350 Ductile iron (DIN GGG40) DN 200-350

Disc Ductile iron EN GJS 400-15 (DIN GGG 40) with Polyamid coating or Stainless Steel

Shaft Stainless steel AISI 420

Liner EPDM

Circlip Steel XC 75 / Stainless steel

O-ring Nitrile/Viton

Upper guide bush Zinc coated S. + PTFE

Lower guide bush Zinc coated S. + PTFE

Gear box Aluminium

1) No visible defectable leakage during the testing procedure

Installation positions


2-3

DN

DN

1 DN

DN

2-3

DN

DN

1 DN

DN

5-6 D

N

1 DN

DN2-

3 DN

1 DN

DN

0

5

10

15

20

25

30

30 50 70 90 100 110 120 10 -10 0 Temperature (°C)

Pres

sure

(bar

)


Installation conditions It is recommended that distances indicated below are respected in order to prolong lifetime of the valve. Mounting the valve close to pipework junctions (turbulent zones) increases wear.

P-T diagram


100

DN

10020 30 401072 3 4 5 60 80156 81,5 ∆P

1000

150

200250300

400500600

800

10000

2000

3000

4000

6000

8000

5000

2500

1500

50

65

80

100

125

150

200

250

300

80

60

40

30

20

10

27,7

277,8

41,7

55,669,483,3

111,1138,9166,7

222,2

2777,8

555,6

833,3

1111,1

1666,7

2222,2

1388,9

694,4

417,7

22,2

16,7

11,1

8,3

5,6

2,8

FLOW Pressure drop kPa (100 kPa = 1bar = ~ 10m H2O)

l/sec m3/hFlow Rate(liquid with speci�c a gravity of 1)

350


Headloss diagramFor water at 20 °C


9

5

6

7

3

2

4

8

1


Design

1. Body 2. Disc 3. Shaft 4. Liner 5. Circlip 6. O-ring 7. Upper guide bush 8. Lower guide bush 9. Gear box


Dimensions

D

Ø DN

C

BA

Ø E

��

�

D

AB

C

Ø DN

��

��

DN ��

Ø E

Waffer type VFY-WG

DNA B C D ØE Weight

mm (kg)

50 62 225,5 120 43 125 3,6

65 70 234,5 120 46 125 4

80 89 240,5 120 46 125 4,3

100 106 264,5 120 52 125 6,3

125 120 279,5 120 56 125 7,4

150 131 292,5 120 56 125 8,5

200 164 373,5 197 60 200 16,5

250 200 399 197 68 200 22,9

300 235 459 239 78 250 34,3

350 270 468 239 78 250 41,4

Lug type VFY-LG


mm (kg)

50 62 225,5 120 43 125 4

65 70 234,5 120 46 125 4,5

80 89 240,5 120 46 125 5,4

100 103 264,5 120 52 125 7,9

Lug type VFY-LG


mm (kg)

125 119 279,5 120 56 125 9,9

150 133 292,5 120 56 125 11,9

200 168 373,5 197 60 200 22,9

250 198 399 197 68 200 29,6

300 227 459 239 78 250 41,3

350 248 468 239 78 250 49,7

BA

D

DN

ØEC


butterfly gearbox vfy wg-lg

Technology

dn code

gear box vfywg

disc medium

m3 h pn

machined disc

c wafer

epdm liner stainless

m3 h c