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Butterfly VALVES - BFV-LUG-Series

GENERAL FEATURES

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  • Wafer type Body with Lug to suit ANSI and DIN connection flanges
  • Rated to 150/125 class
  • Designed to API 609, ASME B16.34
  • Actuator mounting is designed to ISO 5211:2017
  • Disc edge is machined and polished 360° to provide tight shut-off and low torque
  • Robust bushing to align shaft and support the shaft
  • Properly machined shaft in accordance with torque requirements
  • Secondary and primary seals are standard to prevent leakage and external contamination
  • Robust seat lining to avoid warping during installation
  • Spring loaded lever up to 250 NB and gearbox for higher sizes is standard
  • Electric and pneumatic actuators can be supplied on request
  • Indexing scale indicating percentage of opening can be provided
  • Grooved handle arrangement to lock valves at various positions can be provided optionally
Valve

Material Specification

COMPONENT MATERIAL
Body CI to IS 210, Ductile Iron, ASTM A216 WCB, CF8, CF8M
Pin SS 316
Disc CI / DI with anti-corrosive coat, SS 304, SS 316, SS 410
Shaft SS 304, SS 316
Seat EPDM (-25 to 105°C)
BUNA N (-20 to 80°C)
VITON (-20 to 135°C)
PTFE (-20 to 180°C)
Seal BUNA N O-Ring, PTFE O-Ring
Bushing DELRIN

Cv Chart

Size Degrees Open
10° 20° 30° 40° 50° 60° 70° 80° 90°
2" 0 1.3 5 14 26 40 52 59 60
2-1/2" 0 1.4 6 21 44 74 107 138 151
3" 0.7 1.5 8 29 67 115 175 234 262
4" 1.7 15 48 107 196 318 463 589 647
5" 3 32 99 206 362 579 832 1045 1141
6" 4 47 145 295 510 810 1160 1450 1580
8" 6 84 239 450 751 1190 1754 2385 2892
10" 9 133 360 652 1064 1683 2524 3596 4593
12" 12 192 509 899 1449 2288 3470 5085 6682
14" 75 340 770 1400 2200 3400 5600 7900 10000
16" 100 440 1000 1800 2800 4500 7400 10800 13000
18" 130 570 1300 2300 3600 5800 9600 15000 18000
20" 150 710 1600 2900 4600 7200 12000 18400 22000
Engineering Drawing

Dimensions

NB A B C D E F G H I
253351104102.568130102110150
323356110102.568130102110150
403363116102.550130170110150
504362126102.550130170110150
654669136102.550130170110150
80469015102.569130206110150
10052106170102.569130206110150
12556119180102.590130285110150
15056131200102.590130285110150
2006016623029072135400155300
2506820226619072226530170300
3007823592190NA226NA170300
35078267368183NA216NA151285
400102297400183NA216NA151285
450114318422183NA216NA151285
500127355480311NA256NA214285
600154444562386NA285NA262385