TECHNICAL BULLETIN
Argus
FK 79
FCD ARENTB0002
Experience in Motion
Argus FCD ARENTB0002 05/14
Ball valve FK 79 :
Designed to meet API-6D / ASME B16.34 / PED 97/23/EC requirements, the FK79 ball valve represents
the highest standards in valve technology. Its superfine finished seat supported ball is just one of many
innovative design features.
Sizes:
ASME Pressure Classes: DN ½“ – DN 2“ Class 150 - 2500
DN 3“ – DN 4“ Class 150 - 300
DIN Pressure Classes: DN 15 – DN 50 PN 16 – 250
DN 80 – DN 100 PN 16 - 40
Technical Design Features:
Design to API 6D /ASME B16.34 / PED 97/23/EC.
Materials: ASME Section II; Pressure / Temperature rating : ASME B16.34; Wall thickness : ASME B16.34;
face to face dimensions : ASME B16.10, Flange connection ASME B16.5
DIN Design and materials according to PED 97/23/EC.
Split body, floating ball design, full bore, ends ASME B16.5 or EN or EN 1092-1.
• Fire-safe according to BS 6755 Part 2, ISO 10497 or API 607 6th ed.
• Anti-blow out stem, long life double stem seal system and stem supported in bearings to ensure
seals are free form operation loads
• Stem sealing system according to TA-Luft VDI 2440, EPA or EN ISO 15848-1:2006
• Face to face dimensions according to EN 558-1, EN 12980 or ASME B16.10
• Anti-static Design according to DIN EN ISO 17292, chapter 5.2.7
• Ball valve certification for “Exida“ for Functional safety according to IEC 61598 SIL 3
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Argus FCD ARENTB0002 05/14
Materials:
Description PED Material Code Material DIN EN Equivalent ASTM Material
Body/flanges GP240GH+N CS Casting DIN EN 1.0619 A216WCB
G20Mn5 LCS Casting DIN EN 1.6220 A352LCB
P355NL1+N LCS TSTE 355N DIN EN 1.0566 A350LF2
X6CrNiMoTi17-12-2 SS DIN EN 1.4571 A182 Gr. F 316
GX5CrNiMo19-11-2 SS DIN EN 1.4408 A351 Gr.CF8M
Ball X2CrNiMoN22-5-3 Duplex DIN EN 1.4462 A182 F51
NiCu30FE Monel
X2CrNiMoN22-5-3 CRABIDE Duplex DIN EN 1.4462/1.4470 A182 F51 CRABIDE
CRABIDE
X2CrNiMoN22-5-3 ARGULOY Duplex DIN EN 1.4462/1.4470 A182 F51 ARGULOY
ARGULOY
X6CrNiMoTi17-12-2 CRABIDE SS DIN EN 1.4571 CRABIDE A351 Gr.CF8M CRABIDE
X6CrNiMoTi17-12-2 ARGULOY SS DIN EN 1.4571 ARGULOY A351 Gr.CF8M ARGULOY
Stem X2CrNiMoN22-5-3 Duplex DIN EN 1.4462 A182 F51
X5CrNiCuNB16-4 17-4 PH 17-4PH
X2CrNiNMMoNNb21653 Nitronic Nitronic 50
Stem seals PTFE; Graphite
Ball seats PTFE, POM, LYTON
PTFE/ss, POM/ss; LYTON; spring
loaded seats, cavity relief
X2CrNiMoN22-5-3 CRABIDE Duplex DIN EN 1.4462 CRABIDE A182 F51 CRABIDE
X2CrNiMoN22-5-3 ARGULOY Duplex DIN EN 1.4462 ARGULOY A182 F51 ARGULOY
Body seals PTFE ; Graphite
Bolts A193 B7; A4-70
Nuts A194 Gr.4, A194 8M, A4-70
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Soft Seat Materials:
PTFE: Polytetrafluorethene; very high chemical resistance, minimized coefficient of friction
POM: Polyoxymethylene; high solidity, hardness and rigidity values by high abrasion resistance
and low coefficient of friction
LYTON (PEEK) Polyetheretherketone; high chemical resistance, higher temperature rating; high solidity in combination
with high abrasion resistance
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Argus FCD ARENTB0002 05/14
Metal Coatings:
CRABIDE: CRABIDE is a hard metal alloy based on Chromium-carbide and Nickel/Chromium
Composition: Cr2C2/Ni-Cr 75/25
Hardness: 900 – 1100 HV0,3 (>67 HRC)
Temperature limit: max. 970° (depending from base material and process conditions)
Thickness: 200 – 300 µm (usual)
Chemical properties: Resistance versus media in the range of pH 5 and pH 12, as well under high temperature
conditions
Mechanical properties: High resistance especially against abrasion and adhesive wear and sliding abrasion.
ARGULOY: ARGULOY is a Nickel based-based hard alloy. It is applied by flame-spraying and a special heat treatment
after application ensures intimate bonding to the base material. The applied layers are homogenous, crack
free, and resistant to corrosion and wear.
Composition: Ni >70 %, Cr, B, Si
Hardness: 58 – 62 HRC
Temperature limit: max. 750° (depending from base material and process conditions)
Thickness: 500 - 800 µm (usual)
Chemical properties: High corrosion resistance against liquid and gaseous media; chemical base and halogen acids,
as well as under high temperature conditions.
Mechanical properties: High resistance especially against abrasion and adhesive wear and sliding abrasion. The
diffusion zone between coating and base material after sintering is about 50µm. That’s why the
coating is preserved in case of wear.
Note: Additional metal coating systems on request
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Argus FCD ARENTB0002 05/14
Design options:
High temperature stuffing box with DIN ISO Top plate Single side heating jacket valve type, pipe
(Standard design to comply TA-Luft, EPA / ISO 15848) connections (Defined standard; alternative connections
or double seated design on request)
Metal sealing system Type “M“ Metal sealing system Type “N”
Uni-directional sealing; single spring loaded seat (Defined Bi-directional sealing, double spring loaded seats
standard for Cl. 150-300 / PN 16-40; for alternative pressure (Defined standard for Cl.600 / PN 63-100; for
classes on request) alternative pressure classes on request)
<-- Preferred pressure direction
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Argus FCD ARENTB0002 05/14
Sectional drawing serial FK 79
(Standard design: soft seated, compact seats, TA-Luft stem sealing system)
Dimensions:
A: FK 79 DIN PN 40 Investment casting
DN* PN l 1* l 2* l 1* l 2* h2* h11* h15* r1* d0* SW*2- Topwork
EN EN EN EN FL DIN/ISO
558-1 Gr. 558-1 Gr. 558-1 Gr. 558-1 Gr. 5211
27 27 28 28
15 40 115 51,5 130 56 65,5 45 117 220 15 14 F05
20 40 120 54,5 150 70 66,5 46 118 220 20 14 F05
25 40 125 57 160 80 67,5 47 119 220 25 14 F05
32 40 130 58 180 90 79 58,5 131 220 30 14 F05
40 40 140 53 200 100 101 76,5 150 270 38 17 F07
50 40 150 58 230 115 108,5 84 157,5 270 48 17 F07
80 40 180 78 310 75 153 126 182 327,5 76 19 F10
100 40 190 94 350 94 169 142 198 327,5 100 19 F10
80 16 180 75 310 75 153 126 182 327,5 76 19 F10
100 16 190 91 350 91 169 142 198 327,5 100 19 F10
Note: * in mm
B: FK 79 DIN PN 63/100 Forged Design
DN PN l 1* l 2* h2* h15* r1* d0* SW Topwork
EN 2-FL DIN/ISO
558-1 5211
Gr. 28
15 63/100 130 65 47,5 120 173 15 F05
20 63/100 150 75 54,5 126 173 20 F05
25 63/100 160 80 57 128,5 173 25 F05
40 63/100 200 100 82 152,5 220 38 F07
50 63/100 230 115 89,5 160 220 48 F07
Note: * in mm
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Argus FCD ARENTB0002 05/14
C: FK 79 ASME Class 150 Investment casting
Inch Flange l1* l2* h2* h11* h15* r1* d0 Topwork
DIN/ISO
5211
½ RF 108 49 65 45 117 220 15 F05
¾ RF 117,5 54,5 66 46 118 220 20 F05
1 RF 127 57 67 47 119 220 25 F05
11/2 RF 165,1 75 101 76,5 150 270 38 F07
2 RF 177,8 85 108,5 84 157,5 270 48 F07
Note: * in mm
D : FK 79 ASME Class 300 Investment casting
Inch Flange l1* l2* h2* h11* h15* r1* d0* Topwork
DIN/ISO
5211
½ RF 139,7 58 65 45 117 220 15 F05
¾ RF 152,4 66 66 46 118 220 20 F05
1 RF 165,1 75 67 47 119 220 25 F05
11/2 RF 190,5 85 101 76,5 150 270 38 F07
2 RF 215,9 105 108,5 84 157,5 270 48 F07
Note: * in mm
E: FK 79 ASME Class 600 Forged design
Inch Flange l1* l2* h2* h15* r1* d0 Topwork
DIN/ISO
5211
½ RF 165,1 74 47,5 120,5 155 15 F05
¾ RF 190,5 95,5 58,5 130 173 20 F05
1 RF 216,9 108 61 132,5 173 25 F05
11/2 RF 241,3 120,5 94 164,5 220 38 F07
2 RF 292,1 146 101,5 172 220 48 F07
Note: * in mm
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Argus FCD ARENTB0002 05/14
Standard topwork drawings:
FK 79 Serial index AE DN 15 + 20; Serial index AB DN 25 + 32
FK 79 Serial index AB DN 40 + 50
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Argus FCD ARENTB0002 05/14
FK 79 Serial index AB DN 80 + 100
Accessories :
DIN ISO Stem extension (defined Lever extension
Locking device (defined standard) standard: DN 15-50 L=100mm; (defined standard : L =100mm)
DN 80-100 L=150mm)
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Flowserve Flow Control GmbH
Rudolf-Plank-Straße 2
D-76275 Ettlingen
Germany,
T: +49 7243 103-0
F: +49 7243 103-222
FCD ARENTB0002 Printed in France 05/14
To find your local Flowserve representative
or for more information about Flowserve Corporation,
visit www.flowserve.com or call USA 1 800 225 6989
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to
perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in
numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data
and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and
maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and
train its employees and contractors in the safe use of Flowserve products in connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered
certified or as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any
matter with respect to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained
herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its
worldwide operations or offices.
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