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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