VALVE COMPANY

WAFER & LUG TYPE BUTTERFLY VALVES

GENERAL CHARACTERISTICS:BS EN 593

CONSTRUCTION:Body: EN-GJL 250 Cast Iron (GG25)Disc : Stainless Steel 304Seat : EPDM,

NBR, FPM (Viton)

Stem : X20Cr13 (Stainless Steel)

COATING:Housing: Oven backed epoxy coating, minimum thickness 250 microns.

OPERATING CONDITIONS:Maximum Operating Pressure 16 bars

TESTS:FAF 3500/3600 Butterfly Valves are manufactured according to the requirements of European Directive 97/23/EC: Fluid of category 2 module A1, and category 3 modules B+C1.Tests are performed according to: EN 12266-1, EN 12266-2, ISO 5208

TABLE OF CONTENTS

DEFINITIONS AND GENERAL INFORMATION

MATERIALS AND CONSTRUCTION

Table of Torque Values

SLEEVE MATERIALS

Application Temperatures

FLOW COEFFICIENTS TABLE (Kv)

CODIFICATION

TECHNICAL CHARACTERISTICS

Sizes and Weight Values

INSTALLATION RECOMMENDATIONS

BOLT/STUD MEASURES AND WORM GEAR DIMENSIONS

CERTIFICATES AND CONTACT INFORMATION

2

3

4

5

6

7

8

9

10

WAFER Butterfly type (Sandwich Type)Butterfly valves starts, stops and regulates flow with the help of positioning the disc against flow. The disc stays in fluid during

application, but special design and construction of the disc reduces the flow resistance to a minimum. Butterfly valve applications are

easy and economic than most of other valve types, since this model is basic with less number of parts. Maintenance and service of

butterfly type is considered to be easy due to relatively low unit weight of these valves.

Technical / Manufacturing Standards:FAF Butterfly valves are manufactured according to related ISO, EN and GOST standards.

Valves: EN 593

Flanges: ISO 7005-2, EN 1092-2

Face to Face dimensions: EN 558-1

FAF offers Wafer and Lug type for butterfly valves. These two types are manufactured with same material, GG25 Body, stainless

steel disc, stainless steel stem etc. Both types can be supplied with EPDM, NBR or VITON seats according to the customer request.

Major difference bentween Wafer and Lug type butterfly valves, is their connection method. This difference results different

application areas for two types.

FAF 3500 Series Wafer Type Butterfly ValvesButterfly valves are connected to the pipeline from the holes (lugs) surrounding the body. For wafer type, these holes are not circle

and not threaded inside. The holes are suitable for both PN 10 and PN 16 flange connections. Since connection holes are not

threaded this type must always be used between two flanges, therefore this type cannot be used as end-valve at the end of a

pipeline.

FAF 3600 Series Lug Type Butterfly ValvesLug type construction looks the same as wafer types but one important difference results different application areas. Lug type

butterfly valves are also connected to the pipeline from the holes surrounding the body. Different than wafer type, for lug type the

holes are threaded. Instead of studs, bolts must be used in order to install this type to the pipeline. Since the bolts holds the valve from

both directions, if the flange on one side of the valve is detached the valve will still hold. Because of this important feature this valve

can be used as end-valve on an end of a pipeline. Again due to this feature this type can only be installed between PN 16 flanges.

Advantages of Wafer/Lug Type Butterfly Valves• Generally these valves are prefered because this type is economic. The distance between the flanges is shorter than other types,

which makes valve lighter and more economic than others.

• Seat of the valve covers not only the valve port but also the connection area between body and pipe flange. Because of its

construction there's no need for additional gasket for installation.

• The seat perfectly covers the iron valve port. Valve body does not contact with the fluid which results less rust and longer service

life.

• The stem is also protected from direct contact with the fluid.

• Construction of butterfly valves does not have spaces, which fills with liquid during close position (such as ball valves)

• The valve operates with quarter turn of the stem. Open and close position of the valve can be realized easily.

• Butterfly valves are supplied with EPDM seat. EPDM satisfies general requirements of most of the applications, and it can easily be

replaced if deformed

• EPDM seats can be replaced with NBR or VITON for specific applications.

• The valves can be automated. They're easily used with pneumatic or electrical actuators.

DEFINITIONS AND GENERAL INFORMATION

2

BODY DISC

Stainless Steel

MATERIALS AND CONSTRUCTION

Body Material

GG 25

CHARACTERISTICS OF BODY MATERIAL

îFrom – 15 to +50 C

5100

3950

3450

3000

2500

1800

1500

4250

3500

3000

2500

1900

1500

1400

DN PN 10 PN 16

Metal DiscElastomer Seat

Average number of Open/Close Cycles

DN PN 10 PN 16

Metal DiscElastomer Seat

Guaranteed Open/Close Cycles

1800 1500

1400 1250

1200 1000

1050

900

700

600

900

700

600

550

MM inches

Table of Torque Values (Nm)

5,42

6,55

8,59

11,53

19,89

30,96

51,30

95,82

161,48

245,10

624,55

845,69

1131,13

1431,37

2300,79

LiquidMedium

Dry

Medium

DN

5,99

7,01

10,17

13,56

24,86

42,38

62,15

118,65

209,05

333,35

969,54

1306,96

1787,55

2308,03

3710,92

Applicable Temperature of the Environment

40

50

65

80

100

125

150

200

250

300

400

450

500

600

40

50

65

80

100

125

150

200

250

300

400

450

500

600

40

50

65

80

100

125

150

200

250

300

400

450

500

600

350

3

EPDM

-20 / +130 CBasic Characteristics

Resistance to sunlight, weathering and ozone. Poor resistance to petroleum oils and fuel. Good heat and compression set resistance.

Appropriate Usage

Less than 10% acids, inorganic and organic alcohols, alkaline salts and solutions, dry bulk, hot-cold water, steam.Disadvantages

Not suitable for hydrocarbons

FPM (Viton®)

-20 / +200°CBasic Characteristics

Excellent temperature and chemical resistance. Excellent mechanical and physical properties, low compression set and low gas permeability.

Appropriate Usage

All Aromatic, Aliphatic and Halogenated Hyrocarbons

Disadvantages

Not appropriate for Ketones, Ester or in combination with Hot Water and Oil.

Nitrile (NBR)

-20 / +90°CBasic Characteristics

Good resistance to petroleum, hydrocarbons, fuels. Widely used with most oils, hydraulic fluids, alcohol.

Appropriate Usage

General Applications, Hydrocarbon Service, less than 40% Aromatics, Food&Beverage Applications.

Disadvantages

Poor resistance to sunlight, weathering and ozone.

°

EPDMFPM (Viton)

EPDM

FPM (Viton®)

NBR

SLEEVE MATERIALS

NBR

4

Position of disc

CV=1.17 KV

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

1 ½”

2”

2 ½”

3”

4”

5”

6”

8”

10”

12”

14”

16”

18”

20”

24”

Kv / DN

mm inches

KV

10°

0,06

0,07

0,14

0,92

1

2

3

4

8

8

11

12

15

20

28

20°

1,39

1,85

3,57

6,75

9

22

31

68

122

151

169

192

259

302

406

30°

2,93

4,38

9,95

20,43

29

64

102

207

387

430

484

577

789

1064

1263

40°

5,63

10,98

22,27

44,49

66

148

241

528

849

930

1011

1257

1707

2301

2721

50°

10,73

20,01

42,77

74,35

118

256

417

878

1507

1750

1973

2203

2931

3757

5105

60°

17

34

76

124

191

429

665

1318

2417

2607

3118

3773

5389

6524

8484

70°

27

55

122

223

310

723

1116

2202

4485

4831

5219

5948

8272

11201

13842

80°

51

99

207

365

538

1334

1905

4011

8149

8718

9788

11397

15570

20123

26775

90°

56

105

226

417

617

1424

2212

4391

9001

9756

10421

12146

16863

22795

27502

Kv GRAPH - Kv TABLE

5

CODIFICATION

5

6

0

0

0

0

0

0

A

A GG 25

Butterfly Valve

Material of Body

Cast Iron GG25 (EN GJL 250)

Material of Seats

NBR

EPDM

FPM (Viton®)

0

1

2

Connection Types

Wafer Type

Threaded lugs (Lug Type)

Operating Pressure

0

Materials of Disc

Stainless steel 304 Al-Bronze Ductile Iron (Nickel Coated)

Drives

Bare Shaft

Gearbox (Wormgear)Double-acting pneumatic actuator

Single-acting pneumatic actuator

Handle 0

1

2

3

4

5

5

6

FAF 3

0

0

0

A

6

5

0

0

A

0

GG 25

ABC

Electrical Actuator

16 Bar

6

DIMENSION TABLE

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

kd1

138

161

175

181

200

215

225

241

296

336

370

400

422

490

575

75

80

91

95

115

134

138

174

198

234

284

310

328

390

456

33

43

46

46

52

56

56

60

68

78

78

88

104,6

127

154

45

55

70

80

101

126

151

200,5

250

300,5

340

400

440

500

600

4-9

4-9

4-9

4-9

4-9

4-9

4-9

4-11

4-11

4-11

4-13

4-18

4-18

4-22

4-22

50 / 70

50 / 70

50 / 70

50 / 70

70

70

70

102

102

102

125

140

140

165

165

90

90

90

90

90

90

90

125

125

125

150

175

175

210

210

22

22

22

22

24,5

29,5

29,5

35,5

39,5

41

72

73

102

135

135

110

125

145

160

180

210

240

295

355

410

470

525

565

650

770

11x11

11x11

11x11

11x11

14x14

14x14

17x17

17x17

22x22

22x22

22x27

-

-

-

-

30

30

30

30

30

30

30

30

30

30

46

46

52

48

48

45

45

45

45

22,5

22,5

22,5

15

15

11,25

11,25

11,25

11,25

9

9

-

-

-

-

-

-

-

-

-

-

-

-

39

48

48

-

-

-

-

-

-

-

-

-

-

-

-

10

14

14

Wafer Weight

3,60

4,50

5,40

5,60

6,90

10,00

12,00

14,50

32,30 *

44,60 *

66,00 *

104,00 *

132,00 *

157,00 *

222,00 *

4,30

5,05

5,80

7,00

8,80

12,05

12,50

20,55

42,30 *

51,00 *

-

-

-

-

-

Lug Weight

* After DN250 the weight values include the weight of gearbox

7

M 16 x 100

M 16 x 110

M 16 x 120

M 16 x 120

M 16 x 130

M 16 x 130

M 20 x 140

M 20 x 150

M 24 x 160

M 24 x 170

M 24 x 170

M 27 x 200

M 27 x 220

M 30 x 260

M 33 x 290

M 16 x 30

M 16 x 40

M 16 x 45

M 16 x 45

M 16 x 50

M 16 x 50

M 20 x 50

M 20 x 55

M 24 x 60

M 24 x 65

M 24 x 65

M 27 x 75

M 27 x 80

M 30 x 90

M 33 x 100

4x2

4x2

4x2

8x2

8x2

8x2

8x2

12x2

12x2

12x2

16x2

16x2

20x2

20x2

20x2

120

130

140

140

150

150

165

175

185

200

200

230

254

294

334

Quantity

(pieces) Bolt QuantityDiameter x L1 Diameter x LStud length

Studs Bolts

WAFER Type LUG Type

Thread Diameter

Stud Diameter

Sizes and Weight of Handles

50(2") - 150(6")

200 (8'') - 300 (12'')

266,7

359

DN ìì

(inches)A B R

Weight (kg)

32

45

52

75,2

0,9

2,3

Sizes and Weight of Gearboxes

50(2") - 150(6")

200(8") - 250(10")

300(12") - 350(14")

52

75

81

DN ìì (inches)

A BWeight

(kg)

45

62,75

80

74

101

118

C E F G Ø

52

75

81

152,5

250

227

75

86

83

150

300

300

5,2

13

15

Sizes and Weight of Double-Reduction Gearboxes

400 (16) - 500 (20)

600 (24)

56.50

56.50

DN ìì (inches) A

Weight (kg)

56.90

72.37

B C ED F H L Ø

178.50

197.50

121

142

115

144

104

130

174

174

125.50

145.50

66

66

300

300

M 16

M 16

M 16

M 16

M 16

M 16

M 20

M 20

M 24

M 24

M 24

M 27

M 27

M 30

M 33

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

4

4

4

8

8

8

8

12

12

12

16

16

20

20

20

16

16

16

16

16

16

20

20

24

24

24

27

27

30

33

Recommended Stud and Bolt Dimensions